CA1017438A - Acoustic measurement - Google Patents

Acoustic measurement

Info

Publication number
CA1017438A
CA1017438A CA204,300A CA204300A CA1017438A CA 1017438 A CA1017438 A CA 1017438A CA 204300 A CA204300 A CA 204300A CA 1017438 A CA1017438 A CA 1017438A
Authority
CA
Canada
Prior art keywords
acoustic measurement
acoustic
measurement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA204,300A
Other versions
CA204300S (en
Inventor
Eric A. Huth
Robert H. Benton
Edwin J. Powter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Post Office
Original Assignee
Post Office
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Post Office filed Critical Post Office
Application granted granted Critical
Publication of CA1017438A publication Critical patent/CA1017438A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/04—Frequency
    • G01H3/06—Frequency by electric means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
CA204,300A 1973-07-06 1974-07-08 Acoustic measurement Expired CA1017438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3237073A GB1426604A (en) 1973-07-06 1973-07-06 Acoustic measurements

Publications (1)

Publication Number Publication Date
CA1017438A true CA1017438A (en) 1977-09-13

Family

ID=10337565

Family Applications (1)

Application Number Title Priority Date Filing Date
CA204,300A Expired CA1017438A (en) 1973-07-06 1974-07-08 Acoustic measurement

Country Status (3)

Country Link
US (1) US3912880A (en)
CA (1) CA1017438A (en)
GB (1) GB1426604A (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2830837C2 (en) * 1977-07-15 1983-06-09 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa Method and device for measuring the characteristic values of a loudspeaker
DE2846346A1 (en) * 1978-10-25 1980-05-08 Bosch Gmbh Robert METHOD FOR MEASURING, TESTING, AND IN PARTICULAR FOR SETTING THE MAXIMUM OUTPUT SOUND PRESSURE OF HOER DEVICES
US4347410A (en) * 1980-02-26 1982-08-31 Schomer Paul D Microphone droop and sensitivity measurement device
US4486862A (en) * 1981-08-24 1984-12-04 Commonwealth Of Australia Determination of system response
US4450411A (en) * 1982-07-27 1984-05-22 Honeywell Inc. Automatic calibration system for signal amplifier circuits
DE3636720A1 (en) * 1986-10-29 1988-05-05 Krupp Gmbh METHOD FOR FUNCTIONAL TESTING A MICROPHONE AND MICROPHONE TESTING DEVICE
GB2199466A (en) * 1986-11-08 1988-07-06 G L Communications Limited Monitoring loudspeakers
GB2207770B (en) * 1987-08-06 1991-09-11 Nat Research And Dev Corp The Apparatus and methods for spectral analysis of electrical materials,components and devices
US5247458A (en) * 1990-09-11 1993-09-21 Audio Precision, Inc. Method and apparatus for testing a digital system for the occurrence of errors
FR2702911B1 (en) * 1993-03-18 1995-05-24 Matra Communication Method and device for phonometric measurements.
US6269318B1 (en) * 1997-04-30 2001-07-31 Earl R. Geddes Method for determining transducer linear operational parameters
US6450960B1 (en) 2000-08-29 2002-09-17 Barbara Ann Karmanos Cancer Institute Real-time three-dimensional acoustoelectronic imaging and characterization of objects
US7492909B2 (en) * 2001-04-05 2009-02-17 Motorola, Inc. Method for acoustic transducer calibration
JP2006304035A (en) * 2005-04-22 2006-11-02 Agilent Technol Inc Analog-digital converting method and system thereof
GB2426404B (en) * 2005-05-21 2009-01-14 Signal Conversion Ltd Apparatus and methods for the measurement of non linear distortion of transducer devices
US10198097B2 (en) 2011-04-26 2019-02-05 Sentons Inc. Detecting touch input force
US9639213B2 (en) 2011-04-26 2017-05-02 Sentons Inc. Using multiple signals to detect touch input
US9189109B2 (en) 2012-07-18 2015-11-17 Sentons Inc. Detection of type of object used to provide a touch contact input
US9477350B2 (en) 2011-04-26 2016-10-25 Sentons Inc. Method and apparatus for active ultrasonic touch devices
US11327599B2 (en) 2011-04-26 2022-05-10 Sentons Inc. Identifying a contact type
US10235004B1 (en) * 2011-11-18 2019-03-19 Sentons Inc. Touch input detector with an integrated antenna
EP2780782B1 (en) 2011-11-18 2020-05-13 Sentons Inc. Localized haptic feedback
KR101803261B1 (en) 2011-11-18 2017-11-30 센톤스 아이엔씨. Detecting touch input force
US11262253B2 (en) 2017-08-14 2022-03-01 Sentons Inc. Touch input detection using a piezoresistive sensor
CN102547526B (en) * 2012-01-13 2014-12-24 广东启明科技发展有限公司 Real-time monitoring method and system of microphone working state
US9459715B1 (en) 2013-09-20 2016-10-04 Sentons Inc. Using spectral control in detecting touch input
US10908741B2 (en) 2016-11-10 2021-02-02 Sentons Inc. Touch input detection along device sidewall
US10296144B2 (en) 2016-12-12 2019-05-21 Sentons Inc. Touch input detection with shared receivers
US10126877B1 (en) 2017-02-01 2018-11-13 Sentons Inc. Update of reference data for touch input detection
US10585522B2 (en) 2017-02-27 2020-03-10 Sentons Inc. Detection of non-touch inputs using a signature
US11580829B2 (en) 2017-08-14 2023-02-14 Sentons Inc. Dynamic feedback for haptics
CN114112006A (en) * 2021-11-26 2022-03-01 中科传启（苏州）科技有限公司 Noise monitoring method and device and electronic equipment
CN114236393B (en) * 2021-11-30 2023-07-07 上海瑞浦青创新能源有限公司 Method and system for detecting battery abnormality on line based on big data

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629000A (en) * 1950-05-26 1953-02-17 Rca Corp Distortion analyzing apparatus
US3267222A (en) * 1966-01-07 1966-08-16 Billy B Chipp Intercommunication test set
US3692959A (en) * 1970-10-28 1972-09-19 Electone Inc Digital hearing aid gain analyzer

Also Published As

Publication number Publication date
GB1426604A (en) 1976-03-03
US3912880A (en) 1975-10-14

Similar Documents

Publication Publication Date Title
CA1017438A (en) Acoustic measurement
CA1013068A (en) Electrostatic transducer
AU474137B2 (en) Auto-refractometer
AU468964B2 (en) Melik
CA979113A (en) Electro-acoustic transducer
CA1017213A (en) Vibrator
CA1029548A (en) Transducer means for measuring angles
CA984136A (en) Thickness measuring
CA1003250A (en) Caroling bells
AU498889B2 (en) Piperidylene benzocycloheptathiophenes
CA1005294A (en) Diaphragm
AU476397B2 (en) A-cycloalkylbenzyl lactamimides
AU476505B2 (en) Alkylbenxyl lactamimides
CA984160A (en) Time indicating means
AU472907B2 (en) Firecheck
CA993990A (en) Seismometer
CA971582A (en) Scale tester
CA1001598A (en) Recorder scale arrangement
CA994422A (en) Vibrating oxygen probe
AU476386B2 (en) Dibenzocycloheptenyl lactamimides
CA975724A (en) Measuring system
CA993847A (en) Inch-metric dial
CA1001293A (en) Electrostatic transducer
AU471241B2 (en) Benzothiazolylureas
CA952434A (en) Acoustic sensing device