DE68915666D1 - Verfahren und Anordnung mit akustischem Wandler. - Google Patents
Verfahren und Anordnung mit akustischem Wandler.Info
- Publication number
- DE68915666D1 DE68915666D1 DE68915666T DE68915666T DE68915666D1 DE 68915666 D1 DE68915666 D1 DE 68915666D1 DE 68915666 T DE68915666 T DE 68915666T DE 68915666 T DE68915666 T DE 68915666T DE 68915666 D1 DE68915666 D1 DE 68915666D1
- Authority
- DE
- Germany
- Prior art keywords
- arrangement
- acoustic transducer
- acoustic
- transducer
- 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 - Lifetime
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)
- Electromagnetism (AREA)
- General Physics & Mathematics (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)
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 |
---|---|
DE68915666D1 true DE68915666D1 (de) | 1994-07-07 |
Family
ID=22929326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68915666T Expired - Lifetime DE68915666D1 (de) | 1988-09-19 | 1989-09-04 | Verfahren und Anordnung mit akustischem Wandler. |
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)
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 | 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 |
US5433115A (en) * | 1993-06-14 | 1995-07-18 | Simmonds Precision Products, Inc. | Contactless interrogation of sensors for smart structures |
US5515041A (en) * | 1993-06-14 | 1996-05-07 | Simmonds Precision Products Inc. | Composite shaft monitoring system |
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 |
US6659957B1 (en) * | 1998-03-05 | 2003-12-09 | Gil M. Vardi | 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 |
WO2006035198A1 (en) | 2004-09-30 | 2006-04-06 | British Telecommunications Public Limited Company | Identifying or locating waveguides |
DE102004053549A1 (de) * | 2004-11-05 | 2006-05-11 | Siemens Ag | Optisches Hydrophon |
GB0427733D0 (en) | 2004-12-17 | 2005-01-19 | British Telecomm | Optical system |
KR20070095909A (ko) | 2004-12-17 | 2007-10-01 | 브리티쉬 텔리커뮤니케이션즈 파블릭 리미티드 캄퍼니 | 네트워크 평가 방법 |
GB0504579D0 (en) | 2005-03-04 | 2005-04-13 | British Telecomm | Communications system |
WO2006092606A1 (en) | 2005-03-04 | 2006-09-08 | British Telecommunications Public Limited Company | Acousto-optical modulator arrangement |
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 |
CA2643344A1 (en) | 2006-02-24 | 2007-08-30 | British Telecommunications Public Limited Company | Sensing a disturbance |
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 |
US8670662B2 (en) | 2006-04-03 | 2014-03-11 | British Telecommunications Public Limited Company | Evaluating the position of an optical fiber 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)
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 |
-
1988
- 1988-09-19 US US07/246,103 patent/US4900921A/en not_active Expired - Fee Related
-
1989
- 1989-09-04 DE DE68915666T patent/DE68915666D1/de not_active Expired - Lifetime
- 1989-09-04 EP EP89308934A patent/EP0360449B1/de not_active Expired - Lifetime
- 1989-09-18 IL IL91669A patent/IL91669A0/xx unknown
- 1989-09-18 JP JP1240288A patent/JPH02168119A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0360449A3 (en) | 1990-06-13 |
EP0360449B1 (de) | 1994-06-01 |
IL91669A0 (en) | 1990-04-29 |
US4900921A (en) | 1990-02-13 |
JPH02168119A (ja) | 1990-06-28 |
EP0360449A2 (de) | 1990-03-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |