IL91669A0 - Acoustic transducing arrangements and methods - Google Patents

Acoustic transducing arrangements and methods

Info

Publication number
IL91669A0
IL91669A0 IL91669A IL9166989A IL91669A0 IL 91669 A0 IL91669 A0 IL 91669A0 IL 91669 A IL91669 A IL 91669A IL 9166989 A IL9166989 A IL 9166989A IL 91669 A0 IL91669 A0 IL 91669A0
Authority
IL
Israel
Prior art keywords
methods
acoustic transducing
arrangements
transducing arrangements
acoustic
Prior art date
Application number
IL91669A
Other languages
English (en)
Original Assignee
Simmonds Precision Products
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 Simmonds Precision Products filed Critical Simmonds Precision Products
Publication of IL91669A0 publication Critical patent/IL91669A0/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2968—Transducers specially adapted for acoustic level indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2962—Measuring transit time of reflected waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/04—Sound-producing devices
    • G10K15/046—Sound-producing devices using optical excitation, e.g. laser bundle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measuring Volume Flow (AREA)
IL91669A 1988-09-19 1989-09-18 Acoustic transducing arrangements and methods IL91669A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/246,103 US4900921A (en) 1988-09-19 1988-09-19 System and method for opto-acoustic liquid quantity measurement and transducer therefor

Publications (1)

Publication Number Publication Date
IL91669A0 true IL91669A0 (en) 1990-04-29

Family

ID=22929326

Family Applications (1)

Application Number Title Priority Date Filing Date
IL91669A IL91669A0 (en) 1988-09-19 1989-09-18 Acoustic transducing arrangements and methods

Country Status (5)

Country Link
US (1) US4900921A (de)
EP (1) EP0360449B1 (de)
JP (1) JPH02168119A (de)
DE (1) DE68915666D1 (de)
IL (1) IL91669A0 (de)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3900274A1 (de) * 1989-01-07 1990-07-12 Basf Ag Messschaltung zur erfassung von messsignalen
DE69330265T2 (de) * 1992-11-25 2002-02-07 Simmonds Precision Products Inc., Akron Datenverarbeitungsstrukturen und Methoden
US5581248A (en) * 1993-06-14 1996-12-03 Simmonds Precision Products, Inc. Embeddable device for contactless interrogation of sensors for smart structures
US5602540A (en) * 1993-06-14 1997-02-11 Simmonds Precision Products Inc. Fluid gauging apparatus with inductive interrogation
US5515041A (en) * 1993-06-14 1996-05-07 Simmonds Precision Products Inc. Composite shaft monitoring system
US5433115A (en) * 1993-06-14 1995-07-18 Simmonds Precision Products, Inc. Contactless interrogation of sensors for smart structures
GB9522949D0 (en) * 1995-11-09 1996-01-10 M & A Packaging Serv Ltd Fill level measuring
US5719329B1 (en) * 1995-12-28 1999-11-16 Univ Ohio Ultrasonic measuring system and method of operation
US5944687A (en) 1996-04-24 1999-08-31 The Regents Of The University Of California Opto-acoustic transducer for medical applications
CA2308777C (en) * 1997-11-06 2004-08-03 Sumitomo Metal Industries, Ltd. Method and apparatus for measurement and automatic control of acid concentration
AU5948499A (en) 1998-03-05 1999-11-29 Victor Spivak Optical-acoustic imaging device
WO2001023845A1 (en) 1999-09-27 2001-04-05 Ohio University Determining gas and liquid flow rates in a multi-phase flow
US6404204B1 (en) * 2000-05-01 2002-06-11 ARETé ASSOCIATES Sensor and sensor system for liquid conductivity, temperature and depth
US7245789B2 (en) 2002-10-07 2007-07-17 Vascular Imaging Corporation Systems and methods for minimally-invasive optical-acoustic imaging
GB0322859D0 (en) 2003-09-30 2003-10-29 British Telecomm Communication
US7667849B2 (en) 2003-09-30 2010-02-23 British Telecommunications Public Limited Company Optical sensor with interferometer for sensing external physical disturbance of optical communications link
GB0407386D0 (en) 2004-03-31 2004-05-05 British Telecomm Monitoring a communications link
GB0421747D0 (en) 2004-09-30 2004-11-03 British Telecomm Distributed backscattering
US7848645B2 (en) 2004-09-30 2010-12-07 British Telecommunications Public Limited Company Identifying or locating waveguides
DE102004053549A1 (de) * 2004-11-05 2006-05-11 Siemens Ag Optisches Hydrophon
CA2589792A1 (en) 2004-12-17 2006-06-22 British Telecommunications Public Limited Company Assessing a network
GB0427733D0 (en) 2004-12-17 2005-01-19 British Telecomm Optical system
WO2006092606A1 (en) 2005-03-04 2006-09-08 British Telecommunications Public Limited Company Acousto-optical modulator arrangement
GB0504579D0 (en) 2005-03-04 2005-04-13 British Telecomm Communications system
EP1708388A1 (de) 2005-03-31 2006-10-04 British Telecommunications Public Limited Company Verfahren zum Mitteilen von Informationen
EP1713301A1 (de) 2005-04-14 2006-10-18 BRITISH TELECOMMUNICATIONS public limited company Verfahren und Gerät zur Schallübertragung über eine optische Verbindung
EP1729096A1 (de) 2005-06-02 2006-12-06 BRITISH TELECOMMUNICATIONS public limited company Verfahren und Vorrichtung zur Ermittlung der Stelle einer Störung in einer optischen Faser
US7599588B2 (en) * 2005-11-22 2009-10-06 Vascular Imaging Corporation Optical imaging probe connector
DE602007013874D1 (de) 2006-02-24 2011-05-26 British Telecomm Erfassen einer störung
US7961331B2 (en) 2006-02-24 2011-06-14 British Telecommunications Public Limited Company Sensing a disturbance along an optical path
EP1826924A1 (de) 2006-02-24 2007-08-29 BRITISH TELECOMMUNICATIONS public limited company Abtastung einer Störung
WO2007113527A1 (en) 2006-04-03 2007-10-11 British Telecommunications Public Limited Company Evaluating the position of a disturbance
US7574082B2 (en) * 2007-03-28 2009-08-11 Verizon Services Organization Inc. Optical power monitoring with robotically moved macro-bending
EP2356412B1 (de) 2008-10-02 2012-08-15 Vascular Imaging Corporation Optischer ultraschallempfänger
CN101908437A (zh) * 2010-07-09 2010-12-08 江苏港星方能超声洗净科技有限公司 液位开关
US10048186B2 (en) 2016-03-18 2018-08-14 Simmonds Precision Products, Inc. Optically interfaced fluid density sensor
CN111734393A (zh) * 2020-06-28 2020-10-02 中国石油天然气股份有限公司 一种油井动液面测试装置及操作方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2101404B (en) * 1981-07-02 1984-11-28 Standard Telephones Cables Ltd Semiconductor switch device
GB2121953B (en) * 1982-06-10 1985-09-04 Itt Ind Ltd Improvements in transducers
GB8323685D0 (en) * 1983-09-03 1983-10-05 Gen Electric Co Plc Monitoring displacement
US4677305A (en) * 1985-06-28 1987-06-30 Simmonds Precision Products, Inc. Opto-acoustic fuel quantity gauging system
GB8530809D0 (en) * 1985-12-13 1986-01-22 Gen Electric Co Plc Sensor
US4715226A (en) * 1986-08-15 1987-12-29 Xecutek Corporation Ultrasonic apparatus for determining the amount of liquid in a container of known volume

Also Published As

Publication number Publication date
EP0360449A2 (de) 1990-03-28
EP0360449A3 (en) 1990-06-13
DE68915666D1 (de) 1994-07-07
JPH02168119A (ja) 1990-06-28
US4900921A (en) 1990-02-13
EP0360449B1 (de) 1994-06-01

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