WO1996035923A3 - Acoustic transducer components - Google Patents

Acoustic transducer components Download PDF

Info

Publication number
WO1996035923A3
WO1996035923A3 PCT/US1996/006541 US9606541W WO9635923A3 WO 1996035923 A3 WO1996035923 A3 WO 1996035923A3 US 9606541 W US9606541 W US 9606541W WO 9635923 A3 WO9635923 A3 WO 9635923A3
Authority
WO
WIPO (PCT)
Prior art keywords
waveguide
pickup coil
sleeve
strain wave
sonic
Prior art date
Application number
PCT/US1996/006541
Other languages
French (fr)
Other versions
WO1996035923A2 (en
Inventor
Arnold Fred Sprecher Jr
Michael L Gloden
Stephen W Smith
Original Assignee
Mts System Corp
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
Priority claimed from US08/439,506 external-priority patent/US5545984A/en
Priority claimed from US08/500,335 external-priority patent/US5590091A/en
Priority claimed from US08/500,004 external-priority patent/US5736855A/en
Application filed by Mts System Corp filed Critical Mts System Corp
Priority to JP53423596A priority Critical patent/JP4145957B2/en
Priority to AU60222/96A priority patent/AU6022296A/en
Priority to CA2220557A priority patent/CA2220557C/en
Priority to EP96917806A priority patent/EP0882212B1/en
Priority to DE69634988T priority patent/DE69634988T2/en
Publication of WO1996035923A2 publication Critical patent/WO1996035923A2/en
Publication of WO1996035923A3 publication Critical patent/WO1996035923A3/en
Priority to HK99101335A priority patent/HK1016252A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/48—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using wave or particle radiation means
    • G01D5/485—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using wave or particle radiation means using magnetostrictive devices
    • 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
    • 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)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

A waveguide suspension device (2) and modular construction for sonic waveguides (4), including a damping element (6) for use with a waveguide (4) that supports a current pulse and results in a torsional or longitudinal strain wave, is also disclosed. The damping element (6) is to prevent the reflection of the sonic strain wave and includes a sleeve (27) surrounding the waveguide and a mechanism (29) for applying pressure on the sleeve (27) so the sleeve (27) exerts pressure on the waveguide (4), thereby gradually dampening the sonic strain wave energy along the length of the waveguide (4) surrounded by the damping element sleeve (27) to prevent reflection of the sonic strain wave. Further, the return conductor (1) placement is determined by measuring system response to provide minimal ringing of the signal received from a pickup coil (13). In addition, the suspension mechanism (2) is used to contain the waveguide thereby avoiding extraneous noise. A bracket (10) is disclosed that facilitates the process of assembly of the waveguide assembly. Also, a local buffer circuit for use with a magnetostrictive transducer is disclosed wherein the magnetostrictive transducer (4) includes a pickup coil (13) and the local buffer circuit includes two diodes (22, 23) in parallel with the pickup coil (13) to clip or short the energy produced in the pickup coil (13) generated by an interrogation pulse, and also includes a common emitter amplifier (24) to reduce the electrical impedance of the pickup coil (13), also in parallel with the pickup coil (13).
PCT/US1996/006541 1995-05-11 1996-05-10 Acoustic transducer components WO1996035923A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP53423596A JP4145957B2 (en) 1995-05-11 1996-05-10 Acoustic transducer component
AU60222/96A AU6022296A (en) 1995-05-11 1996-05-10 Acoustic transducer components
CA2220557A CA2220557C (en) 1995-05-11 1996-05-10 Acoustic transducer components
EP96917806A EP0882212B1 (en) 1995-05-11 1996-05-10 Acoustic transducer components
DE69634988T DE69634988T2 (en) 1995-05-11 1996-05-10 ACOUSTIC TRANSFORMER COMPONENTS
HK99101335A HK1016252A1 (en) 1995-05-11 1999-04-01 Acoustic transducer components.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US43950795A 1995-05-11 1995-05-11
US08/439,507 1995-05-11
US08/439,506 US5545984A (en) 1995-05-11 1995-05-11 Damping device for sonic waveguides
US08/439,506 1995-05-11
US08/500,004 1995-07-10
US08/500,335 1995-07-10
US08/500,335 US5590091A (en) 1995-05-11 1995-07-10 Waveguide suspension device and modular construction for sonic waveguides
US08/500,004 US5736855A (en) 1995-07-10 1995-07-10 Local buffer circuit for sonic waveguides

Publications (2)

Publication Number Publication Date
WO1996035923A2 WO1996035923A2 (en) 1996-11-14
WO1996035923A3 true WO1996035923A3 (en) 1997-03-20

Family

ID=27503872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/006541 WO1996035923A2 (en) 1995-05-11 1996-05-10 Acoustic transducer components

Country Status (7)

Country Link
EP (3) EP0882212B1 (en)
JP (9) JP4145957B2 (en)
AU (1) AU6022296A (en)
CA (1) CA2220557C (en)
DE (2) DE69637308T2 (en)
HK (1) HK1016252A1 (en)
WO (1) WO1996035923A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8623040B2 (en) 2009-07-01 2014-01-07 Alcon Research, Ltd. Phacoemulsification hook tip

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2696180C (en) * 1995-05-11 2012-08-07 Mts Systems Corporation Acoustic transducer components
DE19753805C2 (en) * 1997-12-03 1999-09-30 Asm Automation Sensorik Messte Storage for waveguides for the transmission of mechanical waves and method of manufacture
DE10201880B4 (en) * 2001-12-31 2004-05-06 Asm Automation Sensorik Messtechnik Gmbh Magnetostrictive sensor element
DE10234960B4 (en) 2002-07-31 2011-12-15 Asm Automation Sensorik Messtechnik Gmbh Sensor according to the transit time principle with a detector unit for mechanical-elastic waves
DE10348195B4 (en) * 2003-10-16 2011-08-11 ASM Automation Sensorik Meßtechnik GmbH, 85452 Sensor according to the transit time principle with a detector unit for mechanical-elastic waves
WO2011124238A1 (en) 2010-04-09 2011-10-13 Hydac Electronic Gmbh System for damping the reflection wave at the open end of a magnetostrictive sensor system
US10258505B2 (en) 2010-09-17 2019-04-16 Alcon Research, Ltd. Balanced phacoemulsification tip
RU2463566C1 (en) * 2011-04-12 2012-10-10 Общество с ограниченной ответственностью "Новейшие Информационные Решения" Method of determining level of liquid and floating magnetostrictive level gauge for realising said method
GB2509100A (en) * 2012-12-20 2014-06-25 Eaton Ind Ip Gmbh & Co Kg Magnetic position sensor for swashplate control piston
DE102016118522B4 (en) 2016-09-29 2021-03-25 Sick Atech Gmbh Position sensor
DE102016118524A1 (en) 2016-09-29 2018-03-29 Sick Atech Gmbh position sensor
DE102016125878A1 (en) 2016-12-29 2018-07-05 Sick Atech Gmbh position sensor
TWI718558B (en) * 2019-06-14 2021-02-11 桓達科技股份有限公司 Liquid level sensor device with double-layer flexible tube and packaging structure thereof
DE102019126932A1 (en) * 2019-10-08 2021-04-08 Voith Patent Gmbh Grinding arrangement
DE202020106297U1 (en) 2020-11-03 2022-02-17 Sick Atech Gmbh Magnetostrictive displacement sensor
DK3992583T3 (en) 2020-11-03 2023-02-27 Sick Atech Gmbh MAGNETO STRICTIVE DISTANCE SENSOR
DE102021112706A1 (en) 2021-05-17 2022-11-17 Asm Automation Sensorik Messtechnik Gmbh Potted position sensor functional unit

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898555A (en) * 1973-12-19 1975-08-05 Tempo Instr Inc Linear distance measuring device using a moveable magnet interacting with a sonic waveguide
US4028619A (en) * 1975-09-22 1977-06-07 Cx Corporation Position locating using digital logic controlled by pulse propagation time intervals
US4238844A (en) * 1978-02-28 1980-12-09 Yokogawa Electric Works, Ltd. Displaced position detecting device
US4803427A (en) * 1987-05-26 1989-02-07 Amcon, Inc. Precision measuring gauge having sonic delay line with free-standing mode converter armature
US4839590A (en) * 1987-09-24 1989-06-13 Magnetek Controls Piezoelectric actuator for magnetostrictive linear displacement measuring device
WO1990009083A1 (en) * 1989-02-06 1990-08-09 Hök Instrument Ab Microphone for detecting bodily sounds
US4952873A (en) * 1989-09-11 1990-08-28 Mts Systems Corporation Compact head, signal enhancing magnetostrictive transducer
US4958332A (en) * 1989-09-11 1990-09-18 Mts Systems Corporation Damping device for sonic waveguides
US5076100A (en) * 1990-10-22 1991-12-31 Western Pacific Industries Inc. Magnetostrictive transducer measuring system
US5150049A (en) * 1991-06-24 1992-09-22 Schuetz Tool & Die, Inc. Magnetostrictive linear displacement transducer with temperature compensation
US5311124A (en) * 1991-03-11 1994-05-10 Mts Systems Corporation Emulated analog output magnetostrictive position transducer with set point selection
US5313160A (en) * 1992-02-03 1994-05-17 Mts Systems Corporation Modular magnetostrictive displacement sensor having a waveguide protected by a material with a thermal coefficient of expansion the same as the waveguide
US5397293A (en) * 1992-11-25 1995-03-14 Misonix, Inc. Ultrasonic device with sheath and transverse motion damping

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898555A (en) * 1973-12-19 1975-08-05 Tempo Instr Inc Linear distance measuring device using a moveable magnet interacting with a sonic waveguide
US4028619A (en) * 1975-09-22 1977-06-07 Cx Corporation Position locating using digital logic controlled by pulse propagation time intervals
US4238844A (en) * 1978-02-28 1980-12-09 Yokogawa Electric Works, Ltd. Displaced position detecting device
US4803427A (en) * 1987-05-26 1989-02-07 Amcon, Inc. Precision measuring gauge having sonic delay line with free-standing mode converter armature
US4839590A (en) * 1987-09-24 1989-06-13 Magnetek Controls Piezoelectric actuator for magnetostrictive linear displacement measuring device
WO1990009083A1 (en) * 1989-02-06 1990-08-09 Hök Instrument Ab Microphone for detecting bodily sounds
US4952873A (en) * 1989-09-11 1990-08-28 Mts Systems Corporation Compact head, signal enhancing magnetostrictive transducer
US4958332A (en) * 1989-09-11 1990-09-18 Mts Systems Corporation Damping device for sonic waveguides
US5076100A (en) * 1990-10-22 1991-12-31 Western Pacific Industries Inc. Magnetostrictive transducer measuring system
US5311124A (en) * 1991-03-11 1994-05-10 Mts Systems Corporation Emulated analog output magnetostrictive position transducer with set point selection
US5150049A (en) * 1991-06-24 1992-09-22 Schuetz Tool & Die, Inc. Magnetostrictive linear displacement transducer with temperature compensation
US5313160A (en) * 1992-02-03 1994-05-17 Mts Systems Corporation Modular magnetostrictive displacement sensor having a waveguide protected by a material with a thermal coefficient of expansion the same as the waveguide
US5397293A (en) * 1992-11-25 1995-03-14 Misonix, Inc. Ultrasonic device with sheath and transverse motion damping

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
S.C. ROGERS ET AL: "Ultrasonic level, temperature, and density sensor", IEEE TRANSACTIONS ON NUCLEAR SCIENCE, vol. 29, no. 1, February 1982 (1982-02-01), NEW YORK, USA, pages 665 - 668, XP002014326 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8623040B2 (en) 2009-07-01 2014-01-07 Alcon Research, Ltd. Phacoemulsification hook tip
US9233021B2 (en) 2009-07-01 2016-01-12 Alcon Research, Ltd. Phacoemulsification hook tip

Also Published As

Publication number Publication date
JP4246206B2 (en) 2009-04-02
JP2006194889A (en) 2006-07-27
JP4339857B2 (en) 2009-10-07
CA2220557C (en) 2010-08-24
JP2006189452A (en) 2006-07-20
EP1331471A2 (en) 2003-07-30
HK1016252A1 (en) 1999-10-29
EP0882212B1 (en) 2005-07-27
JP2006106005A (en) 2006-04-20
CA2220557A1 (en) 1996-11-14
JP4339856B2 (en) 2009-10-07
JP4787002B2 (en) 2011-10-05
EP1340966B1 (en) 2007-10-31
DE69634988T2 (en) 2006-05-24
DE69637308D1 (en) 2007-12-13
JP2006189451A (en) 2006-07-20
JP2006145553A (en) 2006-06-08
WO1996035923A2 (en) 1996-11-14
DE69637308T2 (en) 2008-02-28
EP1340966A3 (en) 2004-07-07
JP2006145555A (en) 2006-06-08
JP2006194890A (en) 2006-07-27
JP2002504221A (en) 2002-02-05
DE69634988D1 (en) 2005-09-01
EP1340966A2 (en) 2003-09-03
EP0882212A2 (en) 1998-12-09
JP2006145554A (en) 2006-06-08
AU6022296A (en) 1996-11-29
JP4246205B2 (en) 2009-04-02
JP4145957B2 (en) 2008-09-03

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