GB2545138A - Acoustic thermometry - Google Patents

Acoustic thermometry

Info

Publication number
GB2545138A
GB2545138A GB1704542.8A GB201704542A GB2545138A GB 2545138 A GB2545138 A GB 2545138A GB 201704542 A GB201704542 A GB 201704542A GB 2545138 A GB2545138 A GB 2545138A
Authority
GB
United Kingdom
Prior art keywords
sound
environment
speed
vibrational waves
measuring
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.)
Withdrawn
Application number
GB1704542.8A
Other versions
GB201704542D0 (en
Inventor
Andrew Elliott
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.)
Of Salford Entpr Ltd, University of
University of Salford Enterprises Ltd
Original Assignee
Of Salford Entpr Ltd, University of
University of Salford Enterprises Ltd
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 Of Salford Entpr Ltd, University of, University of Salford Enterprises Ltd filed Critical Of Salford Entpr Ltd, University of
Publication of GB201704542D0 publication Critical patent/GB201704542D0/en
Publication of GB2545138A publication Critical patent/GB2545138A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G01K11/26—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G01K11/24—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of the velocity of propagation of sound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/10—Measuring moisture content, e.g. by measuring change in length of hygroscopic filament; Hygrometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

A method and apparatus for measuring the temperature of an environment by measuring the speed of sound or vibrational waves provided by background sound or vibration within the environment wherein the speed of the sound or vibrational waves is indicative of the temperature of the environment. The method may include measuring the frequency spectrum of sound or vibrational waves within a cavity or resonant cavity and using the obtained frequency spectrum to determine the speed of the sound or vibrational waves.
GB1704542.8A 2014-09-26 2015-09-25 Acoustic thermometry Withdrawn GB2545138A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1417054.2A GB2530565A (en) 2014-09-26 2014-09-26 Acoustic thermometry
PCT/GB2015/052790 WO2016046569A1 (en) 2014-09-26 2015-09-25 Acoustic thermometry

Publications (2)

Publication Number Publication Date
GB201704542D0 GB201704542D0 (en) 2017-05-03
GB2545138A true GB2545138A (en) 2017-06-07

Family

ID=51901207

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1417054.2A Withdrawn GB2530565A (en) 2014-09-26 2014-09-26 Acoustic thermometry
GB1704542.8A Withdrawn GB2545138A (en) 2014-09-26 2015-09-25 Acoustic thermometry

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1417054.2A Withdrawn GB2530565A (en) 2014-09-26 2014-09-26 Acoustic thermometry

Country Status (2)

Country Link
GB (2) GB2530565A (en)
WO (1) WO2016046569A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016226004A1 (en) * 2016-12-22 2018-06-28 Robert Bosch Gmbh Method and device for determining the temperature by means of sound waves
CN107764428B (en) * 2017-01-23 2024-03-08 中国科学院理化技术研究所 Constant pressure temperature measurement reference device
GB2561021B (en) 2017-03-30 2019-09-18 Cirrus Logic Int Semiconductor Ltd Apparatus and methods for monitoring a microphone
GB2561020B (en) 2017-03-30 2020-04-22 Cirrus Logic Int Semiconductor Ltd Apparatus and methods for monitoring a microphone
GB2561022B (en) * 2017-03-30 2020-04-22 Cirrus Logic Int Semiconductor Ltd Apparatus and methods for monitoring a microphone
GB2567018B (en) 2017-09-29 2020-04-01 Cirrus Logic Int Semiconductor Ltd Microphone authentication
US11769510B2 (en) 2017-09-29 2023-09-26 Cirrus Logic Inc. Microphone authentication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002187A1 (en) * 1982-11-29 1984-06-07 Babcock Power Ltd Improvements relating to estimating combustion chamber temperatures
EP0218293A1 (en) * 1985-09-30 1987-04-15 Leica B.V. A method and an apparatus for determining the velocity, direction and other magnitudes of a flow, in particular a gas flow
US20050276306A1 (en) * 2004-06-01 2005-12-15 General Electric Company Estimating combustor flame temperature based on frequency of combustor dynamics transverse mode
US20140278200A1 (en) * 2013-03-14 2014-09-18 Upul DeSilva Temperature measurement in a gas turbine engine combustor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854577C2 (en) * 1978-12-18 1986-05-15 Krupp Koppers GmbH, 4300 Essen Method and device for measuring the temperature in combustion chambers or other gas-filled chambers
US5624188A (en) * 1994-10-20 1997-04-29 West; David A. Acoustic thermometer
RU2089859C1 (en) * 1996-03-14 1997-09-10 Акционерное общество закрытого типа Научно-производственного предприятия "Урания" Method determining physical parameters of gas and liquid systems and gear for its realization
US6039472A (en) * 1998-05-13 2000-03-21 Accusteel Ltd. Method for measuring the temperature of a metallurgical furnace using an acoustic noise parameter and rate of consumption of electrical power

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002187A1 (en) * 1982-11-29 1984-06-07 Babcock Power Ltd Improvements relating to estimating combustion chamber temperatures
EP0218293A1 (en) * 1985-09-30 1987-04-15 Leica B.V. A method and an apparatus for determining the velocity, direction and other magnitudes of a flow, in particular a gas flow
US20050276306A1 (en) * 2004-06-01 2005-12-15 General Electric Company Estimating combustor flame temperature based on frequency of combustor dynamics transverse mode
US20140278200A1 (en) * 2013-03-14 2014-09-18 Upul DeSilva Temperature measurement in a gas turbine engine combustor

Also Published As

Publication number Publication date
GB201417054D0 (en) 2014-11-12
GB2530565A (en) 2016-03-30
GB201704542D0 (en) 2017-05-03
WO2016046569A1 (en) 2016-03-31

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)