CN103674260A - Double-blackbody-box adjustable-temperature water bath emissivity measuring instrument and measuring method thereof - Google Patents
Double-blackbody-box adjustable-temperature water bath emissivity measuring instrument and measuring method thereof Download PDFInfo
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- CN103674260A CN103674260A CN201210363469.2A CN201210363469A CN103674260A CN 103674260 A CN103674260 A CN 103674260A CN 201210363469 A CN201210363469 A CN 201210363469A CN 103674260 A CN103674260 A CN 103674260A
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Abstract
The invention discloses a double-blackbody-box adjustable-temperature water bath emissivity measuring instrument and a measuring method thereof. The measuring instrument comprises two blackbody boxes, a water bath controller (15), an infrared temperature measuring instrument and a tray (20), wherein a hollow shaft (10) is arranged between the two blackbody boxes, the water bath controller (15) is connected with a water pipe (13), the water pipe (13) passes through the hollow shaft (10) from bottom to top to be connected with a water inlet/outlet interface (14) of one blackbody box, each blackbody box contains a blackbody cylinder, sealing is carried out between the top and bottom surfaces of each blackbody box and the top and bottom surfaces of the temperature box in which the blackbody box is arranged at observation holes, and the sealing part is of a certain thickness to allow water to flow through. Circular observation holes of equal diameter are arranged in the same positions of the top surfaces and the bottom surfaces of the two blackbody boxes and the two blackbody cylinders. According to the measuring method, the temperature of the temperature adjusting box of the measuring instrument is changed to obtain multiple two-unknown equation sets so as to measure the emissivity and obtain the beat heat source, the reliability of measurement is high, and blackbody calibration and indoor and outdoor measurement can be realized.
Description
Technical field
The present invention relates to a kind of quantitative remote sensing analyzer and assay method thereof, particularly, the present invention relates to a kind of multi-functional thermal infrared remote sensing emissivity measurer and assay method thereof.
Background technology
Body surface temperature is the energy value of object interface molecule mean motion, and it depends primarily on following three parameters: surperficial emergent radiation degree, environment irradiance and emissivity.Object emissivity represents the ability of object emission of thermal radiation, atural object surface temperature be determined at many scientific researches and application has vital role, accurately measure the true temperature that emissivity can obtain topographical surface feature.Existing emissivity measuring technique mainly solves emissivity by conversion radiation source.Such as Chinese invention patent CN1464297 discloses a kind of Portable emissivity measurer and assay method thereof, it has the semi-enclosed cavity of V-shape, on the logical light mouth in one end of this cavity Liang Gexiang top set, an infrared temperature analyzer is installed, described analyzer utilizes the descending radiation of the sky of 45 degree zenith angles (also can be described as sky cold emission) and the switching of room temperature radiation (being the heat radiation of V-shape cavity) (to refer to < < Quantitative Thermal Infrared Remote Sensing model and ground experiment basis > > the 3rd chapter, Zhang Renhua work, 2009, Science Press), under two secondary environment irradiance, build an equation with two unknowns batch total and calculate emissivity.Above-mentioned emissivity measurer can only utilize sky cold emission source to measure in the wild; Can only obtain a kind of Incidence heat radiation power, according to the relation of an equation with two unknowns group, calculate emissivity, optimal heat radiation source intensity obtain the analysis data that need its dynamic change contrast emissivity measurement precision and degree of stability impact.
Summary of the invention
In order to improve the measuring accuracy of existing emissivity measurer, the invention provides a kind of pair of black matrix case tempered water and bathe emissivity measurer, utilization is alternately irradiated measured object higher than the adjustable constant temperature environment of room temperature and the radiation source under stable room temperature environment, builds following linear equation in two unknowns group:
M
1=εB+(1-ε)E
1
M
2=εB+(1-ε)E
2
In formula, ε is emissivity, conventionally at least determines an emissivity and measures ε
1value, M
1for room temperature case, refer to that the object under cold environment goes out radiancy, M
2for controlled temperature cabinet, refer to that the object under thermal environment goes out radiancy, E
1for room temperature case radiant illumination, refer to cold environment radiant illumination, E
2for controlled temperature cabinet radiant illumination, refer to thermal environment radiant illumination, the black matrix that B is object goes out radiancy.Going out radiancy is energy unit, differs a coefficient with 4 powers of temperature, is not same concept.But in order to make problem directly perceived, conventionally by temperature, suppose.
Above calculating formula hypothesis is when quick handoff environment irradiance, B does not significantly change, practical studies repeatedly proves that above hypothesis establishment (refers to < < Quantitative Thermal Infrared Remote Sensing model and ground experiment basis > > the 3rd chapter, Zhang Renhua work, 2009, Science Press).Adopt the of the present invention pair of black matrix case tempered water to bathe that emissivity measurer obtains respectively room temperature and higher than the M at the controlled temperature cabinet temperature of room temperature
1, M
2, E
1, E
2value, calculate the value of emissivity ε.Can draw many group equation with two unknowns groups by changing the temperature of controlled temperature cabinet, realize obtaining of optimal heat radiation source intensity.
In addition, of the present invention pair of black matrix case tempered water bathed the function that emissivity measurer also has blackbody calibration, by the bottomless little inverted cone of infrared thermometer close alignment being measured to the temperature of circular cone water-bath of living in, bath temperature regulates by temperature adjustment water tank, and then infrared thermometer is carried out to verification.
A kind of pair of black matrix case tempered water of the present invention bathed emissivity measurer, it comprises two black matrix casees, water-bath controller 15, infrared thermometer and pallet 20, between described two black matrix casees, being provided with 10, two black matrix casees of quill shaft rotates with dislocation around quill shaft 10.Two black matrix casees rotate by quill shaft 10, reach the position that does not change measured object and the object that can switch fast the varying environment radiant illumination of measured object is more suitable for immovable atural objects such as field measuring soil, vegetation.
Described water-bath controller 15 is connected with water-supply-pipe 13, connect water-supply-pipe 13 from below to up through described quill shaft 10, be then connected with the Inlet and outlet water interface 14 of one of them black matrix case, this black matrix case is controlled temperature cabinet 2, another black matrix case is room temperature case 1.Above-mentioned connected mode can realize under the state being connected with controlled temperature cabinet at water-supply-pipe, still can make two black matrix casees around quill shaft Rotate 180 degree the position with conversion controlled temperature cabinet and room temperature case.
In described controlled temperature cabinet 2 and room temperature case 1, respectively contain a black matrix cylinder, what be wherein positioned at controlled temperature cabinet 2 is temperature adjustment black matrix cylinder 5, what be positioned at room temperature case 1 is room temperature black matrix cylinder 4, between the observation port of the end face of the end face of each black matrix cylinder and bottom surface and its incubator of living in and the observation port of bottom surface, seal, the groove that the internal perisporium of the outer tube wall of described black matrix cylinder and its black matrix case forms is the water bath of black matrix case;
On the end face of described controlled temperature cabinet 2, room temperature case 1, temperature adjustment black matrix cylinder 5 and room temperature black matrix cylinder 4 and bottom surface, same position place is equipped with the observation circular hole that diameter is completely equal, the observation circular hole of the end face of described room temperature case 1 and bottom surface is room temperature case observation circular hole 7, and the observation circular hole of the end face of described controlled temperature cabinet 2 and bottom surface is controlled temperature cabinet observation circular hole 8.When said structure makes the observation circular hole of described one of them black matrix case of infrared thermometer close alignment interior, its camera lens can be aimed at the observation circular hole of interior each end face of same casing and bottom surface simultaneously, to observe the measured object on the pallet under bottom surface observation circular hole.
The end face of described two black matrix casees is equipped with two bottomless inverted cone 3 and 6, and the inside and outside unglazed black matrix paint of wall spraying of described circular cone, to reduce the error of infrared thermometer measurement bath temperature.
Described temperature adjustment black matrix cylinder 5 and room temperature black matrix cylinder 4 are for there being the black matrix cylinder of end face and bottom surface, end face and the bottom surface of the end face of the black matrix cylinder barrel of described end face and bottom surface and Yu Qi place, bottom surface black matrix case are tightly connected and have certain thickness at observation port place, water between two end faces and two bottom surfaces can be passed through, special instruction, because black matrix cylinder end face is dome-shaped, between two end faces, there is suitable distance to hold circulating water.
Described room temperature case 1 on same height-adjustable bracket 9, is conducive to also field measuring of this analyzer with controlled temperature cabinet 2, by adjustable bracket, measures crops and the meadow that height changes with growth cycle.
Described pallet 20 is by movably tripod 21 supports, and this pallet is used for placing determinand.The end face of described controlled temperature cabinet 2 is made by poly (methyl methacrylate) plate, so that change in inspection box at any time in experimentation.
The present invention also provides a kind of and has used aforementioned pair of black matrix case tempered water to bathe the method that emissivity measurer is measured emissivity, it is characterized in that comprising the following steps:
A, measurement room temperature, open water-bath controller 15, more than bath temperature is set in to room temperature, beyond this water-bath controller 15, recycle design pumps into controlled temperature cabinet 2 by water pump and water-supply-pipe 13 by water, to keep controlled temperature cabinet temperature consistent with the temperature of water-bath in water-bath controller.After the interior temperature stabilization of controlled temperature cabinet 2, by bottomless inverted cone 3 black matrixes of infrared thermometer camera lens close alignment room temperature case 1 end face, read room temperature case 1 temperature, i.e. room temperature case 1 radiant illumination E
1;
B, by controlled temperature cabinet 2 and room temperature case 1 around quill shaft 10 Rotate 180s ° with dislocation, by bottomless inverted cone 6 black matrixes of infrared thermometer camera lens close alignment controlled temperature cabinet 2 end faces, read controlled temperature cabinet 2 temperature, i.e. controlled temperature cabinet 2 radiant illumination E
2;
C, will in the pallet on tripod 21 20, put into determinand, and make determinand aim at the room temperature case observation circular hole 7 of room temperature case 1 bottom surface, room temperature case observation circular hole 7 by infrared thermometer camera lens while close alignment room temperature case 1 end face and bottom surface, show that the object of room temperature case 1 goes out radiancy M
1;
D, keep pallet 20 invariant positions, controlled temperature cabinet 2 and room temperature case 1, around quill shaft 10 Rotate 180s ° with dislocation, by the infrared thermometer controlled temperature cabinet observation circular hole 8 of close alignment controlled temperature cabinet 2 end faces and bottom surface simultaneously, are shown to the object of controlled temperature cabinet 2 goes out radiancy M
2;
E, the system of equations forming according to above-mentioned 4 readings, solve emissivity and measure ε
1value.
Above-mentioned steps A ~ E can be called measuring phases, and take respectively room temperature case radiation (cold emission) and controlled temperature cabinet radiation (heat radiation) is radiation source, measures emissivity.
In above-mentioned steps A ~ E, the temperature of described controlled temperature cabinet 2 is at least high 13 ℃ than the temperature of described room temperature case 1.
In addition, before described steps A, also comprise the step of verification infrared thermometer, can be described as the preparatory stage:
By the bottomless inverted cone 3 of infrared thermometer close alignment room temperature case 1 end face, temperature and ambient temperature that contrast infrared thermometer shows;
Around quill shaft 10, rotate two black matrix casees to change the position of two casees, then by the bottomless inverted cone 6 of infrared thermometer close alignment controlled temperature cabinet 2 end faces, the temperature that contrast infrared thermometer shows and the temperature of water-bath controller 15;
By the above-mentioned contrast of infrared thermometer being measured to temperature and room temperature and bath temperature, infrared thermometer is carried out to verification.
In said method, after described step e, also comprise that changing controlled temperature cabinet 2 temperature repeatedly measures the step of emissivity again:
Constantly change the temperature of described controlled temperature cabinet 2 and keep controlled temperature cabinet 2 temperature higher more than 13 ℃ than the temperature of described room temperature case 1, after the interior temperature stabilization of controlled temperature cabinet 2, repeating step A ~ E, the emissivity that solves corresponding different controlled temperature cabinet 2 temperature is measured ε
nvalue, n>=2, contrast different emissivity measured values and solve end value.
A kind of pair of black matrix case tempered water of the present invention bathed emissivity measurer and drawn many group equation with two unknowns groups by changing the temperature of controlled temperature cabinet, the emissivity reliability of measuring is high, bottomless inverted cone by controlled temperature cabinet and room temperature case top realizes the function of blackbody calibration (infrared thermometer being carried out to verification), by regulating the support of height to facilitate the mensuration of indoor and outdoors.
Accompanying drawing explanation
Fig. 1 is the vertical view that two black matrix case tempered waters are bathed emissivity measurer.
Fig. 2 is the side view that two black matrix case tempered waters are bathed emissivity measurer.
Description of reference numerals:
1-room temperature case, 2-controlled temperature cabinet, 3, the bottomless inverted cone of 6-, 4-room temperature black matrix cylinder, 5-temperature adjustment black matrix cylinder, 7-room temperature case observation circular hole, 8-controlled temperature cabinet observation circular hole, 9-bracket, 10-quill shaft, the two casees of 11-rotate rectangle pallet height adjustable column, the two casees of 12-rotate rectangle tray support frame, 13-water-supply-pipe, 14-Inlet and outlet water interface, 15-water-bath controller, 16-water-bath type calibration cell Inlet and outlet water interface, 17-water-bath controller regulation and control display, 18-water-bath type calibration cell tank lid, 19-infrared thermometer support bar, 20-pallet, 21-tripod, 23-water-bath controller bracing frame, 24-vent port
Embodiment
Below in conjunction with embodiment, further illustrate the present invention.
A kind of pair of black matrix case tempered water of the present invention bathed emissivity measurer, it comprises two black matrix casees, water-bath controller 15, infrared thermometer and pallet 20, between described two black matrix casees, being provided with 10, two black matrix casees of quill shaft rotates with dislocation around quill shaft 10.
Described water-bath controller 15 is connected with water-supply-pipe 13, connect water-supply-pipe 13 from below to up through described quill shaft 10, be then connected with the Inlet and outlet water interface 14 of one of them black matrix case, this black matrix case is controlled temperature cabinet 2, another black matrix case is room temperature case 1.
In described controlled temperature cabinet 2 and room temperature case 1, respectively contain a black matrix cylinder, what be wherein positioned at controlled temperature cabinet 2 is temperature adjustment black matrix cylinder 5, what be positioned at room temperature case 1 is room temperature black matrix cylinder 4, between the end face of the end face of each black matrix cylinder and bottom surface and its incubator of living in and bottom surface, in the sealing of observation port place, the groove that the internal perisporium of the outer tube wall of described black matrix cylinder and its black matrix case forms is the water bath of black matrix case;
On the end face of described controlled temperature cabinet 2, room temperature case 1, temperature adjustment black matrix cylinder 5 and room temperature black matrix cylinder 4 and bottom surface, same position place is equipped with the observation circular hole that diameter is completely equal, the observation circular hole of the end face of described room temperature case 1 and bottom surface is room temperature case observation circular hole 7, and the observation circular hole of the end face of described controlled temperature cabinet 2 and bottom surface is controlled temperature cabinet observation circular hole 8.
The end face of described two black matrix casees is equipped with two bottomless inverted cone 3 and 6, and the inside and outside unglazed black matrix paint of wall spraying of described circular cone, to reduce the error of infrared thermometer measurement bath temperature.
Described temperature adjustment black matrix cylinder 5 and room temperature black matrix cylinder 4 be for there being the black matrix cylinder of end face and bottom surface, described in have the end face of black matrix cylinder barrel of end face and bottom surface and end face and the bottom surface of Yu Qi place, bottom surface black matrix case to be tightly connected at observation port place.
Described room temperature case 1 is with controlled temperature cabinet 2 on same height-adjustable bracket 9, and described pallet 20 is by movably tripod 21 supports, and the end face of described controlled temperature cabinet 2 is made by poly (methyl methacrylate) plate.
Use above-mentioned pair of black matrix case tempered water to bathe emissivity measurer and measure emissivity, specifically comprise the following steps:
A, measurement room temperature, open water-bath controller 15, and more than bath temperature is set in to room temperature, the temperature of described controlled temperature cabinet 2 is at least high 13 ℃ than the temperature of described room temperature case 1.Beyond this water-bath controller 15, recycle design pumps into controlled temperature cabinet 2 by water pump and water-supply-pipe 13 by water, to keep controlled temperature cabinet temperature consistent with the temperature of water-bath in water-bath controller.After the interior temperature stabilization of controlled temperature cabinet 2, by bottomless inverted cone 3 black matrixes of infrared thermometer camera lens close alignment room temperature case 1 end face, read room temperature case 1 temperature, i.e. room temperature case 1 radiant illumination E
1;
B, by controlled temperature cabinet 2 and room temperature case 1 around quill shaft 10 Rotate 180s ° with dislocation, by bottomless inverted cone 6 black matrixes of infrared thermometer camera lens close alignment controlled temperature cabinet 2 end faces, read controlled temperature cabinet 2 temperature, i.e. controlled temperature cabinet 2 radiant illumination E
2;
C, will in the pallet on tripod 21 20, put into determinand, and make determinand aim at the room temperature case observation circular hole 7 of room temperature case 1 bottom surface, room temperature case observation circular hole 7 by infrared thermometer camera lens while close alignment room temperature case 1 end face and bottom surface, show that the object of room temperature case 1 goes out radiancy M
1;
D, keep pallet 20 invariant positions, controlled temperature cabinet 2 and room temperature case 1, around quill shaft 10 Rotate 180s ° with dislocation, by the infrared thermometer controlled temperature cabinet observation circular hole 8 of close alignment controlled temperature cabinet 2 end faces and bottom surface simultaneously, are shown to the object of controlled temperature cabinet 2 goes out radiancy M
2;
E, the system of equations forming according to above-mentioned 4 readings, solve emissivity and measure ε
1value.
Above-mentioned steps A ~ E can be called measuring phases, and take respectively room temperature case radiation (cold emission) and controlled temperature cabinet radiation (heat radiation) is radiation source, measures emissivity.
In addition, before described steps A, also comprise the step of verification infrared thermometer, can be described as the preparatory stage:
By the bottomless inverted cone 3 of infrared thermometer close alignment room temperature case 1 end face, temperature and ambient temperature that contrast infrared thermometer shows;
Around quill shaft 10, rotate two black matrix casees to change the position of two casees, then by the bottomless inverted cone 6 of infrared thermometer close alignment controlled temperature cabinet 2 end faces, the temperature that contrast infrared thermometer shows and the temperature of water-bath controller 15;
By the above-mentioned contrast of infrared thermometer being measured to temperature and room temperature and bath temperature, infrared thermometer is carried out to verification.
In said method, after described step e, also comprise that changing controlled temperature cabinet 2 temperature repeatedly measures the step of emissivity again:
Constantly change the temperature of described controlled temperature cabinet 2 and keep controlled temperature cabinet 2 temperature higher more than 13 ℃ than the temperature of described room temperature case 1, after the interior temperature stabilization of controlled temperature cabinet 2, repeating step A ~ E, the emissivity that solves corresponding different controlled temperature cabinet 2 temperature is measured ε
nvalue, n>=2, contrast different emissivity measured values and solve end value.
Claims (9)
1. two black matrix case tempered waters are bathed an emissivity measurer, it is characterized in that:
Described analyzer comprises two black matrix casees, water-bath controller (15), infrared thermometer and pallet (20), between described two black matrix casees, is provided with quill shaft (10), and two black matrix casees rotate with dislocation around quill shaft (10); Described two black matrix casees are included as room temperature case (1) and controlled temperature cabinet (2), in described controlled temperature cabinet (2) and room temperature case (1), respectively contain a black matrix cylinder, what be wherein positioned at controlled temperature cabinet (2) is temperature adjustment black matrix cylinder (5), what be positioned at room temperature case (1) is room temperature black matrix cylinder (4), and the groove that the perisporium of the barrel of described black matrix cylinder and its black matrix case forms is the water bath of black matrix case;
Described water-bath controller (15) is connected with a pair of water-supply-pipe (13), a pair of connected water-supply-pipe (13) is from below to up through described quill shaft (10), then be connected with 2 Inlet and outlet water interfaces (14) of one of them black matrix case respectively, it is completely equal that the upper same position of described controlled temperature cabinet (2), room temperature case (1) place is equipped with diameter, and the observation circular hole that end face and bottom surface connect, the observation circular hole of described room temperature case (1) is room temperature case observation circular hole (7), and the observation circular hole of described controlled temperature cabinet (2) is controlled temperature cabinet observation circular hole (8).
2. a kind of pair of black matrix case tempered water according to claim 1 bathed emissivity measurer, it is characterized in that:
The end face of described two black matrix casees is equipped with two bottomless inverted cone (3,6), the inside and outside unglazed black matrix paint of wall spraying of described inverted cone.
3. a kind of pair of black matrix case tempered water according to claim 1 and 2 bathed emissivity measurer, it is characterized in that:
Between the end face of described temperature adjustment black matrix cylinder (5) and room temperature black matrix cylinder (4) and the end face of bottom surface and its incubator of living in and bottom surface, seal, and end face and the bottom surface of the end face of each black matrix cylinder barrel and Yu Qi place, bottom surface black matrix case are tightly connected at observation port place.
4. a kind of pair of black matrix case tempered water according to claim 1 and 2 bathed emissivity measurer, it is characterized in that:
Described room temperature case (1) and controlled temperature cabinet (2) are on same height-adjustable bracket (9);
Described pallet (20) is by movably tripod (21) support.
5. a kind of pair of black matrix case tempered water according to claim 1 and 2 bathed emissivity measurer, it is characterized in that:
The end face of described controlled temperature cabinet (2) is made by poly (methyl methacrylate) plate.
6. the two black matrix case tempered waters of use as described in aforementioned any one claim are bathed the method that emissivity measurer is measured emissivity, it is characterized in that comprising the following steps:
The temperature of A, measuring chamber incubator (1): measure room temperature, open water-bath controller (15), more than bath temperature is set in to room temperature, this water-bath controller (15) in addition recycle design injects controlled temperature cabinet (2) by water pump and water-supply-pipe (13) by water, after temperature stabilization in controlled temperature cabinet (2), by bottomless inverted cone (3) black matrix of infrared thermometer camera lens close alignment room temperature case (1) end face, read room temperature case (1) temperature, i.e. room temperature case (1) radiant illumination E
1;
B, measure the temperature of controlled temperature cabinet (2): by controlled temperature cabinet (2) and room temperature case (1) around quill shaft (10) Rotate 180 ° with dislocation, by bottomless inverted cone (6) black matrix of infrared thermometer camera lens close alignment controlled temperature cabinet (2) end face, read controlled temperature cabinet (2) temperature, i.e. controlled temperature cabinet (2) radiant illumination E
2;
The radiancy of C, measuring chamber incubator (1) object: will put into determinand in the pallet (20) on tripod (21), and make determinand aim at the room temperature case observation circular hole (7) of room temperature case (1) bottom surface, room temperature case observation circular hole (7) by infrared thermometer camera lens while close alignment room temperature case (1) end face and bottom surface, show that the object of room temperature case (1) goes out radiancy M
1;
The radiancy of D, measurement controlled temperature cabinet (2) object: keep pallet (20) invariant position, by controlled temperature cabinet (2) and room temperature case (1) around quill shaft (10) Rotate 180 ° with dislocation, controlled temperature cabinet observation circular hole (8) by infrared thermometer while close alignment controlled temperature cabinet (2) end face and bottom surface, show that the object of controlled temperature cabinet (2) goes out radiancy M
2;
E, according to the radiancy in steps A-D, show that emissivity measures ε
1value.
7. a kind of method of measuring emissivity according to claim 6, is characterized in that:
The temperature of described controlled temperature cabinet (2) is at least high 13 ℃ than the temperature of described room temperature case (1).
8. according to a kind of method of measuring emissivity described in claim 6 or 7, it is characterized in that:
Before described steps A, also comprise the step of verification infrared thermometer:
By the bottomless inverted cone (3) of infrared thermometer close alignment room temperature case (1) end face, temperature and ambient temperature that contrast infrared thermometer shows;
Around quill shaft (10), rotate two black matrix casees to change the position of two casees, then by the bottomless inverted cone (6) of infrared thermometer close alignment controlled temperature cabinet (2) end face, the temperature that contrast infrared thermometer shows and the temperature of water-bath controller (15);
By the above-mentioned contrast of infrared thermometer being measured to temperature and room temperature and bath temperature, infrared thermometer is carried out to verification.
9. according to a kind of method of measuring emissivity described in claim 6 or 7 any one, it is characterized in that:
After described step e, also comprise that changing controlled temperature cabinet (2) temperature repeatedly measures the step of emissivity again:
Constantly change the temperature of described controlled temperature cabinet (2) and keep controlled temperature cabinet (2) temperature higher more than 13 ℃ than the temperature of described room temperature case (1), after temperature stabilization in controlled temperature cabinet (2), repeating step A ~ E, the emissivity that solves corresponding different controlled temperature cabinet (2) temperature is measured ε
nvalue, n>=2, contrast different emissivity measured values and solve end value.
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781430A (en) * | 2016-11-15 | 2017-05-31 | 北京空间机电研究所 | A kind of high sensitivity infrared remote sensor performance testing device |
| CN112129415A (en) * | 2020-09-22 | 2020-12-25 | 云南电网有限责任公司电力科学研究院 | Transformer substation infrared temperature measuring device and method based on temperature dynamic calibration |
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| US4636091A (en) * | 1985-06-27 | 1987-01-13 | Exergen Corporation | Radiation detector having temperature readout |
| JPH07243915A (en) * | 1994-03-02 | 1995-09-19 | Nippon Steel Corp | Highly accurate temperature measuring method |
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| CN106781430A (en) * | 2016-11-15 | 2017-05-31 | 北京空间机电研究所 | A kind of high sensitivity infrared remote sensor performance testing device |
| CN112129415A (en) * | 2020-09-22 | 2020-12-25 | 云南电网有限责任公司电力科学研究院 | Transformer substation infrared temperature measuring device and method based on temperature dynamic calibration |
| CN112129415B (en) * | 2020-09-22 | 2023-05-12 | 云南电网有限责任公司电力科学研究院 | Transformer substation infrared temperature measurement device and method based on temperature dynamic calibration |
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