JP2005526228A - 圧電センサの診断 - Google Patents
圧電センサの診断 Download PDFInfo
- Publication number
- JP2005526228A JP2005526228A JP2003524019A JP2003524019A JP2005526228A JP 2005526228 A JP2005526228 A JP 2005526228A JP 2003524019 A JP2003524019 A JP 2003524019A JP 2003524019 A JP2003524019 A JP 2003524019A JP 2005526228 A JP2005526228 A JP 2005526228A
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- JP
- Japan
- Prior art keywords
- signal
- piezoelectric sensor
- sensor
- diagnostic
- response
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
- G01F1/325—Means for detecting quantities used as proxy variables for swirl
- G01F1/3259—Means for detecting quantities used as proxy variables for swirl for detecting fluid pressure oscillations
- G01F1/3266—Means for detecting quantities used as proxy variables for swirl for detecting fluid pressure oscillations by sensing mechanical vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
- G01F1/325—Means for detecting quantities used as proxy variables for swirl
- G01F1/3287—Means for detecting quantities used as proxy variables for swirl circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
- G01F25/24—Testing proper functioning of electronic circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/22—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of ac into dc
Abstract
Description
Claims (24)
- 圧電センサをテストするための診断装置であって、
少なくとも2つの異なった周波数でAC信号を圧電センサへ印加するように構成されたAC電源と、
圧電センサに結合され、印加されたAC信号に対するセンサの応答を測定し、これに応じて圧電センサの測定出力キャパシタンスを与えるように構成された測定回路と、
測定出力の関数として診断出力を有する診断回路とを具備する診断装置。 - 測定出力がセンサ抵抗およびセンサに関連する請求項1に記載の診断装置。
- 2つの周波数でAC信号が印加される請求項1に記載の診断装置。
- AC電源および圧電センサに結合されたテスト・キャパシタンスを含む請求項1に記載の診断装置。
- 診断回路を圧電センサに選択的に結合するスイッチを含む請求項1に記載の診断装置。
- 測定回路が、センサの応答を増幅するように構成された増幅器を含む請求項1に記載の診断装置。
- 測定回路が、センサの応答をディジタル化するように構成されたアナログ・ディジタル変換器を含む請求項1に記載の診断装置。
- 診断回路が、アナログ・ディジタル変換器に結合されたマイクロプロセッサを含む請求項7に記載の診断装置。
- マイクロプロセッサが、ディジタル化応答信号と閾値との比較の関数として診断出力を与える請求項8に記載の診断装置。
- マイクロプロセッサが、ディジタル化出力上で実行されるディジタル信号処理の関数として診断出力を与える請求項8に記載の診断装置。
- 診断回路が、閾値比較回路を含む請求項1に記載の診断装置。
- ブラフボディに結合された圧電センサを有し、請求項1の診断装置を含む渦流量計。
- 二線式プロセス制御ループに結合された入力/出力回路を含む請求項12に記載の渦流量計。
- 渦流量計における全ての回路が、プロセス制御ループから受け取られる電力で完全に給電される請求項13に記載の渦流量計。
- 圧電センサを診断する方法であって、
少なくとも2つの異なった周波数でAC信号を圧電センサへ印加し、
印加されたAC信号に応答して発生された圧電センサからの応答信号を測定し、
測定出力の関数として圧電センサの状態を診断することを含む方法。 - AC信号を印加することが、2つだけの周波数でAC信号を印加することからなる請求項15に記載の方法。
- AC信号を印加することが、異なった周波数を順次に適用することからなる請求項15に記載の方法。
- 応答信号を測定することが、応答信号を増幅することを含む請求項15に記載の方法。
- 応答信号を測定することが、応答信号をディジタル化することを含む請求項15に記載の方法。
- 状態を診断することが、応答信号を閾値と比較することを含む請求項15に記載の方法。
- AC信号を印加する前に回路から圧電センサを切り離すことを含む請求項15に記載の方法。
- 請求項15に記載の方法を実行するように構成された診断装置。
- 圧電センサをテストするための診断装置を含む渦流量計であって、
圧電センサに結合されたブラフボディと、
少なくとも2つの異なった周波数でAC信号を圧電センサへ印加するように構成されたたAC電源と、
圧電センサに結合され、印加されたAC信号に対するセンサの応答を測定し、これに応じて圧電センサの測定出力キャパシタンスを与えるように構成された測定回路と、
測定出力の関数として診断出力を有する診断回路とを具備する渦流量計。 - 圧電センサをテストするための診断装置であって、
少なくとも2つの異なった周波数でAC信号を圧電センサへ印加するためのAC電源手段と、
圧電センサに結合され、印加されたAC信号に対するセンサの応答を測定し、圧電センサのセンサ抵抗およびセンサ・キャパシタンスに関連する測定出力を与える測定手段と、
測定出力の関数として圧電センサを診断する診断手段とを具備する診断装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/940,329 US6531884B1 (en) | 2001-08-27 | 2001-08-27 | Diagnostics for piezoelectric sensor |
PCT/US2002/026266 WO2003019205A1 (en) | 2001-08-27 | 2002-08-16 | Diagnostics for piezoelectric sensor |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2005526228A true JP2005526228A (ja) | 2005-09-02 |
JP2005526228A5 JP2005526228A5 (ja) | 2006-01-05 |
JP4519463B2 JP4519463B2 (ja) | 2010-08-04 |
Family
ID=25474640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003524019A Expired - Fee Related JP4519463B2 (ja) | 2001-08-27 | 2002-08-16 | 圧電センサの診断 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6531884B1 (ja) |
EP (1) | EP1423715B1 (ja) |
JP (1) | JP4519463B2 (ja) |
CN (1) | CN1280639C (ja) |
DE (1) | DE60213258T2 (ja) |
WO (1) | WO2003019205A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3988950A1 (en) | 2020-10-22 | 2022-04-27 | Yokogawa Electric Corporation | Diagnostic device, diagnostic method, and field device |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
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DE10323062A1 (de) | 2003-05-20 | 2004-12-09 | Endress + Hauser Gmbh + Co. Kg | Meßgerät |
ES2293438T3 (es) * | 2005-07-22 | 2008-03-16 | Delphi Technologies, Inc. | Procedimiento y dispositivo para controlar y analizar el funcionamiento de un actuador piezoelectrico. |
US7236113B1 (en) * | 2006-01-26 | 2007-06-26 | Emerson Process Management | Capacitance-to-digital modulator with sensor failure-mode detection |
US20100045311A1 (en) * | 2008-08-20 | 2010-02-25 | Jaycee Howard Chung | Dual Electrical Current Sourcing-piezoresistive Material Self-Sensing (DEC-PMSS) System |
US8217667B2 (en) * | 2009-01-16 | 2012-07-10 | Hill-Rom Services, Inc. | Method and apparatus for piezoelectric sensor status assessment |
AT11169U3 (de) * | 2009-10-22 | 2010-12-15 | Avl List Gmbh | Verfahren zum betreiben eines elektromechanischen wandlersystems, sowie elektromechanisches wandlersystem |
FR2953295B1 (fr) * | 2009-12-02 | 2012-05-18 | Sagem Defense Securite | Procede de detection de panne d'un capteur frequentiel et circuit pour la mise en oeuvre de ce procede |
US8788233B2 (en) * | 2011-01-18 | 2014-07-22 | General Electric Company | Diagnostic system and method for a thermistor amplifier circuit |
LU92090B1 (en) | 2012-10-29 | 2014-04-30 | Iee Sarl | Piezoelectric and/or electret sensing device |
WO2014068360A1 (en) * | 2012-10-31 | 2014-05-08 | Diehl Ako Stiftung & Co. Kg | Piezo key sensing circuit and method for testing the piezo key sensing circuit |
RU2524743C2 (ru) * | 2012-11-06 | 2014-08-10 | Закрытое акционерное общество "Вибро-прибор" | Способ бездемонтажной поверки пьезоэлектрического вибропреобразователя на месте эксплуатации |
RU2556743C1 (ru) * | 2014-03-28 | 2015-07-20 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Устройство для дистанционного измерения параметров сигнала пьезодатчика |
DE102018111380A1 (de) | 2017-05-24 | 2018-11-29 | HELLA GmbH & Co. KGaA | Verfahren zur Kalibrierung mindestens eines Sensors |
US11029181B2 (en) | 2018-06-22 | 2021-06-08 | Micro Motion, Inc. | Vortex flowmeter with flow instability detection |
EP3627574B1 (en) * | 2018-09-21 | 2021-02-17 | TE Connectivity Norge AS | Method and apparatus for detecting an open circuit state in a piezoelectric element connection |
CN112415292B (zh) * | 2019-08-20 | 2022-03-18 | 北京钛方科技有限责任公司 | 压电器件在线检测装置及方法 |
WO2021031831A1 (zh) | 2019-08-20 | 2021-02-25 | 北京钛方科技有限责任公司 | 压电器件在线检测装置及方法 |
US11293790B2 (en) | 2019-09-25 | 2022-04-05 | Rosemount Inc. | Piezoelectric transducer condition monitoring |
DE102019129177A1 (de) * | 2019-10-29 | 2021-04-29 | Krohne Messtechnik Gmbh | Wirbeldurchflussmessgerät und Verfahren zum Betreiben eines Wirbeldurchflussmessgeräts |
DE102020134066A1 (de) | 2020-12-17 | 2022-06-23 | Endress+Hauser Flowtec Ag | Vortex-Durchflussmessgerät und Verfahren zum Überprüfen eines Vortex-Durchflussmessgeräts |
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JPS63241467A (ja) * | 1987-03-30 | 1988-10-06 | Honda Motor Co Ltd | 車両の衝突検出装置 |
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2001
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-
2002
- 2002-08-16 EP EP02757209A patent/EP1423715B1/en not_active Expired - Lifetime
- 2002-08-16 DE DE60213258T patent/DE60213258T2/de not_active Expired - Lifetime
- 2002-08-16 WO PCT/US2002/026266 patent/WO2003019205A1/en active IP Right Grant
- 2002-08-16 CN CNB028170008A patent/CN1280639C/zh not_active Expired - Lifetime
- 2002-08-16 JP JP2003524019A patent/JP4519463B2/ja not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS63241467A (ja) * | 1987-03-30 | 1988-10-06 | Honda Motor Co Ltd | 車両の衝突検出装置 |
JPH0580075A (ja) * | 1991-09-24 | 1993-03-30 | Murata Mfg Co Ltd | 加速度センサ |
JPH05232133A (ja) * | 1992-02-25 | 1993-09-07 | Tokin Corp | 加速度センサ |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3988950A1 (en) | 2020-10-22 | 2022-04-27 | Yokogawa Electric Corporation | Diagnostic device, diagnostic method, and field device |
JP2022068766A (ja) * | 2020-10-22 | 2022-05-10 | 横河電機株式会社 | 診断装置及び診断方法、並びにフィールド機器 |
JP7400690B2 (ja) | 2020-10-22 | 2023-12-19 | 横河電機株式会社 | 診断装置及び診断方法、並びにフィールド機器 |
Also Published As
Publication number | Publication date |
---|---|
US6531884B1 (en) | 2003-03-11 |
EP1423715B1 (en) | 2006-07-19 |
CN1280639C (zh) | 2006-10-18 |
JP4519463B2 (ja) | 2010-08-04 |
EP1423715A1 (en) | 2004-06-02 |
WO2003019205A1 (en) | 2003-03-06 |
US20030038644A1 (en) | 2003-02-27 |
DE60213258T2 (de) | 2007-06-06 |
DE60213258D1 (de) | 2006-08-31 |
CN1549929A (zh) | 2004-11-24 |
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