DE69321141T2 - Rauschreduktion in einem magnetostriktiven positionsgeber durch die ermittlung eines gültigen zeitbereichs für die übertragung von akustischen referenzimpulsen - Google Patents

Rauschreduktion in einem magnetostriktiven positionsgeber durch die ermittlung eines gültigen zeitbereichs für die übertragung von akustischen referenzimpulsen

Info

Publication number
DE69321141T2
DE69321141T2 DE69321141T DE69321141T DE69321141T2 DE 69321141 T2 DE69321141 T2 DE 69321141T2 DE 69321141 T DE69321141 T DE 69321141T DE 69321141 T DE69321141 T DE 69321141T DE 69321141 T2 DE69321141 T2 DE 69321141T2
Authority
DE
Germany
Prior art keywords
reference value
determining
magnet
sum
position sensor
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
Application number
DE69321141T
Other languages
English (en)
Other versions
DE69321141D1 (de
Inventor
John Begin
Richard Koski
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.)
Magnetek Inc
Original Assignee
Magnetek Inc
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 Magnetek Inc filed Critical Magnetek Inc
Application granted granted Critical
Publication of DE69321141D1 publication Critical patent/DE69321141D1/de
Publication of DE69321141T2 publication Critical patent/DE69321141T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G01F23/2962—Measuring transit time of reflected waves
    • G01F23/2963—Measuring transit time of reflected waves magnetostrictive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
DE69321141T 1992-07-20 1993-07-16 Rauschreduktion in einem magnetostriktiven positionsgeber durch die ermittlung eines gültigen zeitbereichs für die übertragung von akustischen referenzimpulsen Expired - Lifetime DE69321141T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/915,548 US5258707A (en) 1992-07-20 1992-07-20 Method of noise rejection in a magnetostrictive position detector including determining a valid time range for propagation of sonic pulses over a reference distance
PCT/US1993/006676 WO1994002804A1 (en) 1992-07-20 1993-07-16 Rejecting noise in magnetostrictive position detector by determining valid time range for propagation of reference sonic pulses

Publications (2)

Publication Number Publication Date
DE69321141D1 DE69321141D1 (de) 1998-10-22
DE69321141T2 true DE69321141T2 (de) 1999-05-06

Family

ID=25435931

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69321141T Expired - Lifetime DE69321141T2 (de) 1992-07-20 1993-07-16 Rauschreduktion in einem magnetostriktiven positionsgeber durch die ermittlung eines gültigen zeitbereichs für die übertragung von akustischen referenzimpulsen

Country Status (7)

Country Link
US (1) US5258707A (de)
EP (1) EP0683887B1 (de)
AT (1) ATE171268T1 (de)
AU (1) AU670115B2 (de)
CA (1) CA2140522C (de)
DE (1) DE69321141T2 (de)
WO (1) WO1994002804A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011107287A1 (de) * 2011-07-15 2013-01-17 Hydac Electronic Gmbh Verfahren und Vorrichtung zur Positionsermittlung mittels eines magnetostriktiven Sensorsystems

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5406200A (en) * 1993-02-18 1995-04-11 Magnetek Controls, Inc. Method and apparatus for temperature compensation of magnetostrictive position detection
US5421193A (en) * 1993-12-30 1995-06-06 Proeco, Inc. Method and apparatus for leak detection with float excitation and self-calibration
US5729131A (en) * 1996-03-12 1998-03-17 Patriot Sensors & Controls Corporation Position measurement apparatus and method of using same with sonic pulse propagation delay interval
US5714881A (en) * 1996-03-12 1998-02-03 Patriot Sensors And Controls Corporation Position measurement apparatus using wire waveguide in shock resistant suspension
US5680041A (en) * 1996-03-12 1997-10-21 Patriot Sensors And Controls Corporation Magnetostrictive position measurement apparatus with anti-reflection waveguide terminals
US5804961A (en) * 1996-10-28 1998-09-08 Patriot Sensors & Control, Corp. Magnetostrictive waveguide position measurement apparatus using piezoelectric sensor
US6369563B1 (en) 1996-11-23 2002-04-09 Mts Systems Corporation Method for high resolution measurement of a position
WO1998027401A1 (en) * 1996-12-19 1998-06-25 Mts Systems Corporation Method for high resolution measurement of a time period
US5821743A (en) * 1997-01-03 1998-10-13 Patriot Sensors & Control Corporation Magnetostrictive waveguide position measurement apparatus with piezoceramic element
DE19711271C2 (de) * 1997-03-18 1999-04-29 Zeiss Carl Jena Gmbh Längenmeßsystem
US5986449A (en) * 1997-05-01 1999-11-16 Patroit Sensors And Controls Corporation Self-contained liquid level detection apparatus with substantially constant cross-section outer tube
US6356071B1 (en) 1997-05-02 2002-03-12 Patriot Sensors & Controls, Inc. Self-contained position detection apparatus
US5929763A (en) * 1997-06-27 1999-07-27 Patriot Sensors And Controls Liquid level detection apparatus with flexible outer housing
US5998991A (en) * 1997-11-10 1999-12-07 Patriot Sensors And Controls Pickupless magnetostrictive position measurement apparatus
US5883345A (en) * 1997-12-23 1999-03-16 Otis Elevator Company Sonic position measurement system
US6167756B1 (en) 1998-03-02 2001-01-02 Patriot Sensors & Controls, Inc. Pivotal float for liquid level detection apparatus
US6351117B1 (en) 1999-09-20 2002-02-26 Balluff, Inc. Method and apparatus for generating transducer output pulses compensated for component variations
US20050017710A1 (en) * 2001-12-31 2005-01-27 Steinich Klaus Manfred Magnetostrictive sensor element
US20030193843A1 (en) * 2002-04-12 2003-10-16 Frank Krahe Method for high resolution measurement of a position
DE102005060676B4 (de) * 2005-12-19 2021-01-21 Asm Automation Sensorik Messtechnik Gmbh Positionssensor in Stabbauweise sowie Verfahren zum Austausch
GB2490822B (en) 2008-07-11 2013-02-27 Brain Basket Llc Magnetostrictive auditory system
WO2013052846A1 (en) 2011-10-06 2013-04-11 Brain Basket, LLC Auditory comprehension and audibility device
CN109539967B (zh) * 2018-12-29 2020-06-05 潍坊学院 一种磁致伸缩传感器精确检测机械零件孔装置
CN109540266B (zh) * 2019-01-17 2023-11-07 北京锐达仪表有限公司 一种磁致伸缩液位计及液位测量方法
CN111457832B (zh) * 2020-05-18 2021-06-29 上海凯佛自动化仪表有限公司 一种抬升式磁致伸缩位移变送器
EP3992583B1 (de) * 2020-11-03 2023-01-04 SICK ATech GmbH Magnetostriktiver wegsensor
CN113984147B (zh) * 2021-10-26 2023-09-26 杭州艾科赛德电子科技有限公司 一种方便移动的非接触式泥层界面仪

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158964A (en) * 1978-05-10 1979-06-26 The Foxboro Company Method and apparatus for determining liquid level
US4305283A (en) * 1979-08-29 1981-12-15 Whessoe Limited Position determining apparatus
CH656954A5 (de) * 1981-10-30 1986-07-31 Maag Zahnraeder & Maschinen Ag Verfahren und anordnung zum auswerten von signalen aus einem ultraschallwegmesssystem.
JPS6078317A (ja) * 1983-10-05 1985-05-04 Hitachi Ltd 可動物体の位置検出方法およびその装置
US4721902A (en) * 1985-07-08 1988-01-26 Mts Systems Corporation Noise rejection in a sonic transducer
US4797621A (en) * 1987-07-08 1989-01-10 Midwesco, Inc. Leak detector and locator utilizing time domain reflectometry and sampling techniques
US4839590A (en) * 1987-09-24 1989-06-13 Magnetek Controls Piezoelectric actuator for magnetostrictive linear displacement measuring device
US5017867A (en) * 1989-12-08 1991-05-21 Magnetek Controls Magnetostrictive linear position detector with reflection termination
EP0471073A4 (de) * 1990-03-06 1994-03-21 Hitachi Construction Machinery Zylinderkonstruktion zur verwendung bei positionsmessungen.
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011107287A1 (de) * 2011-07-15 2013-01-17 Hydac Electronic Gmbh Verfahren und Vorrichtung zur Positionsermittlung mittels eines magnetostriktiven Sensorsystems

Also Published As

Publication number Publication date
WO1994002804A1 (en) 1994-02-03
CA2140522A1 (en) 1994-02-03
US5258707A (en) 1993-11-02
EP0683887B1 (de) 1998-09-16
ATE171268T1 (de) 1998-10-15
EP0683887A4 (de) 1997-01-15
AU4774493A (en) 1994-02-14
CA2140522C (en) 2001-10-09
DE69321141D1 (de) 1998-10-22
EP0683887A1 (de) 1995-11-29
AU670115B2 (en) 1996-07-04

Similar Documents

Publication Publication Date Title
DE69321141T2 (de) Rauschreduktion in einem magnetostriktiven positionsgeber durch die ermittlung eines gültigen zeitbereichs für die übertragung von akustischen referenzimpulsen
Prosser et al. Time-frequency analysis of the dispersion of Lamb modes
NO923147D0 (no) Fremgangsmaate for maaling av ultralyd-forplantningstid vedhjelp av puls-refleksjonsmetoden
CA2479119A1 (en) Self calibrating apparatus and method for ultrasonic determination of fluid properties
US6314055B1 (en) Range measuring system
DE112009005228T5 (de) Ultraschall-Detektionsvorrichtung
US4413517A (en) Apparatus and method for determining thickness
US5031467A (en) Pulse echo technique for detecting fluid flow
ATE157173T1 (de) Verfahren und vorrichtung zur relativen sichtweitenbestimmung
Castagnede et al. Correlation method for normal mode tracking in anisotropic media using an ultrasonic immersion system
CA2152102A1 (en) High Resolution Measurement of Thickness Using Ultrasound
SU1817019A1 (en) Method of ultrasonic tomographic testing of articles
ATE65326T1 (de) Verfahren und vorrichtung zur bestimmung der geschwindigkeit, richtung und anderer groessen einer stroemung, insbesondere einer gasstroemung.
DE58905114D1 (de) Verfahren zur stoerunterdrueckung bei ultraschall-abstandsmessungen.
GB2167185A (en) Acoustically detecting and/or identifying a liquid
ATE127932T1 (de) Nachweis und untersuchung von gegenständen mit übertragungsleitungen.
GB2295014A (en) Acoustic logging
US5507184A (en) Process and apparatus for activating a time gate in the ultrasonic testing of materials using the impulse-echo system
DUAL et al. Nondestructive evaluation of defects in beams by guided waves
Hayward et al. Low power ultrasonic imaging using digital correlation
SU771540A1 (ru) Способ ультразвукового контрол соединений металлических изделий с неметаллическим покрытием
RU2265833C2 (ru) Способ ультразвуковой дефектоскопии листового и сортового проката и труб
SU1824610A1 (ru) Способ акустической локации стенок скважины 2
RU2029300C1 (ru) Способ ультразвуковой дефектоскопии цилиндрических изделий
Tomczak et al. False-bottom acoustic echo in mid water? A note on how to evaluate and prevent the interference

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: MOSELPATENT TRIERPATENT, 54290 TRIER

8328 Change in the person/name/address of the agent

Representative=s name: PATENTANWAELTE SERWE & DR. WAGNER, 54290 TRIER