DE69423676T2 - Verfahren zur Überprüfung eines Thermoelements und Apparat zur Ermittlung einer offenen Schaltung - Google Patents

Verfahren zur Überprüfung eines Thermoelements und Apparat zur Ermittlung einer offenen Schaltung

Info

Publication number
DE69423676T2
DE69423676T2 DE69423676T DE69423676T DE69423676T2 DE 69423676 T2 DE69423676 T2 DE 69423676T2 DE 69423676 T DE69423676 T DE 69423676T DE 69423676 T DE69423676 T DE 69423676T DE 69423676 T2 DE69423676 T2 DE 69423676T2
Authority
DE
Germany
Prior art keywords
thermocouple
checking
determining
open circuit
open
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 - Fee Related
Application number
DE69423676T
Other languages
English (en)
Other versions
DE69423676D1 (de
Inventor
Steven D Swift
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.)
Fluke Corp
Original Assignee
Fluke 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
Application filed by Fluke Corp filed Critical Fluke Corp
Application granted granted Critical
Publication of DE69423676D1 publication Critical patent/DE69423676D1/de
Publication of DE69423676T2 publication Critical patent/DE69423676T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • G01K7/026—Arrangements for signalling failure or disconnection of thermocouples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G01R31/2829—Testing of circuits in sensor or actuator systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
DE69423676T 1993-07-26 1994-05-03 Verfahren zur Überprüfung eines Thermoelements und Apparat zur Ermittlung einer offenen Schaltung Expired - Fee Related DE69423676T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/097,439 US5418464A (en) 1993-07-26 1993-07-26 Thermocouple open circuit detection with tone frequency signal application and spectral analysis

Publications (2)

Publication Number Publication Date
DE69423676D1 DE69423676D1 (de) 2000-05-04
DE69423676T2 true DE69423676T2 (de) 2001-02-01

Family

ID=22263355

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69423676T Expired - Fee Related DE69423676T2 (de) 1993-07-26 1994-05-03 Verfahren zur Überprüfung eines Thermoelements und Apparat zur Ermittlung einer offenen Schaltung

Country Status (6)

Country Link
US (1) US5418464A (de)
EP (1) EP0636867B1 (de)
JP (1) JP2565847B2 (de)
KR (1) KR0144437B1 (de)
CN (1) CN1120160A (de)
DE (1) DE69423676T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009019608A1 (de) * 2009-04-30 2010-11-04 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung und Verfahren zur Diagnose eines thermoelektrischen Generatorsystems, insbesondere eines thermoelektrischen Generatorsystems in einem Kraftfahrzeug

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5552712A (en) * 1995-02-15 1996-09-03 General Electric Company Method for in-place circuit integrity testing
US5549280A (en) * 1995-06-06 1996-08-27 Vesuvius Crucible Company Probe system for reliably monitoring a condition in a metallurgical process
US5981907A (en) * 1997-10-09 1999-11-09 Ut Automotive Dearborn, Inc. Rear wiper monitoring theft deterrent circuit
US6426634B1 (en) * 1999-03-29 2002-07-30 George A. Spencer Circuit breaker with integrated self-test enhancements
DE10256819A1 (de) * 2002-12-04 2004-06-24 Digitaltest Gesellschaft für elektronische Testsysteme mbH Verfahren zum Testen elektrischer Bauelemente
TWI418969B (zh) * 2010-12-01 2013-12-11 Ind Tech Res Inst 自驅動型熱電電耗偵測裝置及方法
CN103175620A (zh) * 2011-12-26 2013-06-26 鸿富锦精密工业(武汉)有限公司 热电偶焊接检测装置
CN103454545A (zh) * 2012-06-05 2013-12-18 鸿富锦精密工业(武汉)有限公司 热电偶焊接检测装置
KR101235285B1 (ko) * 2012-11-15 2013-02-21 유호전기공업주식회사 3차원 패턴을 이용한 부분방전 검출장치의 시험 방법
US20140239970A1 (en) * 2013-02-26 2014-08-28 Linear Technology Corporation Thermocouple open-circuit detection circuit and method
WO2017175318A1 (ja) * 2016-04-06 2017-10-12 光俊 菅原 センサ信号検出装置
CN105784166A (zh) * 2016-05-23 2016-07-20 南宁市茂百科技有限公司 一种基于热电偶的温度测试仪
US11047920B2 (en) * 2019-04-02 2021-06-29 Hamilton Sunstrand Corporation Sensor to sensor short detection

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1283378B (de) * 1966-09-08 1968-11-21 Siemens Ag Schaltungsanordnung zur Umformung von Messgleichspannungen in eine Impulsfrequenz
US3590370A (en) * 1969-04-09 1971-06-29 Leeds & Northrup Co Method and apparatus for detecting the open-circuit condition of a thermocouple by sending a pulse through the thermocouple and a reactive element in series
US3760265A (en) * 1972-05-16 1973-09-18 Honeywell Inc Open circuit detection apparatus for thermocouple circuits
US4166243A (en) * 1978-04-21 1979-08-28 General Motors Corporation Thermocouple failure detector
US4307335A (en) * 1979-10-24 1981-12-22 Electronic Associates, Inc. Open thermocouple tester system
JPS6095329A (ja) * 1983-10-31 1985-05-28 Toshiba Corp アナログ入力装置
US4965513A (en) * 1986-09-30 1990-10-23 Martin Marietta Energy Systems, Inc. Motor current signature analysis method for diagnosing motor operated devices
US4841286A (en) * 1988-02-08 1989-06-20 Honeywell Inc. Apparatus and method for detection of an open thermocouple in a process control network
US4859844A (en) * 1988-02-24 1989-08-22 Hughes Aircraft Company Comb filter pressure/temperature sensing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009019608A1 (de) * 2009-04-30 2010-11-04 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung und Verfahren zur Diagnose eines thermoelektrischen Generatorsystems, insbesondere eines thermoelektrischen Generatorsystems in einem Kraftfahrzeug

Also Published As

Publication number Publication date
US5418464A (en) 1995-05-23
EP0636867A2 (de) 1995-02-01
EP0636867A3 (de) 1995-03-22
JPH07174642A (ja) 1995-07-14
JP2565847B2 (ja) 1996-12-18
CN1120160A (zh) 1996-04-10
KR950003832A (ko) 1995-02-17
KR0144437B1 (ko) 1998-08-17
DE69423676D1 (de) 2000-05-04
EP0636867B1 (de) 2000-03-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee