CA1311028C - Instrumentation and monitoring systems employing differential temperature - Google Patents

Instrumentation and monitoring systems employing differential temperature

Info

Publication number
CA1311028C
CA1311028C CA000599818A CA599818A CA1311028C CA 1311028 C CA1311028 C CA 1311028C CA 000599818 A CA000599818 A CA 000599818A CA 599818 A CA599818 A CA 599818A CA 1311028 C CA1311028 C CA 1311028C
Authority
CA
Canada
Prior art keywords
probes
probe
temperature sensor
differential temperature
pair
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
CA000599818A
Other languages
English (en)
French (fr)
Inventor
Michael Twerdochlib
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric 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 US07/196,706 external-priority patent/US4859076A/en
Priority claimed from US07/196,707 external-priority patent/US4901061A/en
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA1311028C publication Critical patent/CA1311028C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
CA000599818A 1988-05-20 1989-05-16 Instrumentation and monitoring systems employing differential temperature Expired - Lifetime CA1311028C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US196,706 1988-05-20
US07/196,706 US4859076A (en) 1987-06-05 1988-05-20 Differential temperature sensors
US07/196,707 US4901061A (en) 1987-06-05 1988-05-20 Instrumentation and monitoring systems employing differential temperature sensors
US196,707 1988-05-20

Publications (1)

Publication Number Publication Date
CA1311028C true CA1311028C (en) 1992-12-01

Family

ID=26892148

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000599818A Expired - Lifetime CA1311028C (en) 1988-05-20 1989-05-16 Instrumentation and monitoring systems employing differential temperature

Country Status (6)

Country Link
JP (1) JP2736344B2 (it)
KR (1) KR890017716A (it)
CN (1) CN1038880A (it)
CA (1) CA1311028C (it)
ES (1) ES2014621A6 (it)
IT (1) IT1232978B (it)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10459024B2 (en) 2016-12-22 2019-10-29 Rosemount Inc. Shorted thermocouple diagnostic
US10564203B2 (en) 2017-03-24 2020-02-18 Rosemount Aerospace Inc. Probe heater remaining useful life determination
US10895592B2 (en) 2017-03-24 2021-01-19 Rosemount Aerospace Inc. Probe heater remaining useful life determination
US10914777B2 (en) 2017-03-24 2021-02-09 Rosemount Aerospace Inc. Probe heater remaining useful life determination
US10962580B2 (en) 2018-12-14 2021-03-30 Rosemount Aerospace Inc. Electric arc detection for probe heater PHM and prediction of remaining useful life
US11060992B2 (en) 2017-03-24 2021-07-13 Rosemount Aerospace Inc. Probe heater remaining useful life determination
US11061080B2 (en) 2018-12-14 2021-07-13 Rosemount Aerospace Inc. Real time operational leakage current measurement for probe heater PHM and prediction of remaining useful life
US11293995B2 (en) 2020-03-23 2022-04-05 Rosemount Aerospace Inc. Differential leakage current measurement for heater health monitoring
US11472562B2 (en) 2019-06-14 2022-10-18 Rosemount Aerospace Inc. Health monitoring of an electrical heater of an air data probe
US11630140B2 (en) 2020-04-22 2023-04-18 Rosemount Aerospace Inc. Prognostic health monitoring for heater
US11639954B2 (en) 2019-05-29 2023-05-02 Rosemount Aerospace Inc. Differential leakage current measurement for heater health monitoring
US11930563B2 (en) 2019-09-16 2024-03-12 Rosemount Aerospace Inc. Monitoring and extending heater life through power supply polarity switching

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025220A1 (de) * 2006-05-29 2007-12-06 Areva Np Gmbh Vorrichtung zur Füllstandsmessung
DE102008022363B4 (de) * 2008-05-06 2012-01-19 Areva Np Gmbh Verfahren und Vorrichtung zur Überwachung des Füllstands einer Flüssigkeit in einem Flüssigkeitsbehälter
CN102455204B (zh) * 2010-10-19 2013-04-10 中国石油化工股份有限公司 用于釜式容器的液位测量系统和方法以及釜式容器
CN102628706B (zh) * 2012-05-02 2014-04-02 科博达重庆汽车电子有限公司 分段式液位测量模块
JP6082242B2 (ja) * 2012-12-13 2017-02-15 日野自動車株式会社 水温センサのバックアップシステム
CN103672847B (zh) * 2013-12-19 2015-07-08 中国石油天然气股份有限公司 具有对流段高温报警装置的注汽锅炉及其报警方法
KR102780756B1 (ko) * 2024-05-04 2025-03-12 이의용 반도체용 rf 필터 모니터링 제어 시스템

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10459024B2 (en) 2016-12-22 2019-10-29 Rosemount Inc. Shorted thermocouple diagnostic
US10564203B2 (en) 2017-03-24 2020-02-18 Rosemount Aerospace Inc. Probe heater remaining useful life determination
US10895592B2 (en) 2017-03-24 2021-01-19 Rosemount Aerospace Inc. Probe heater remaining useful life determination
US10914777B2 (en) 2017-03-24 2021-02-09 Rosemount Aerospace Inc. Probe heater remaining useful life determination
US11060992B2 (en) 2017-03-24 2021-07-13 Rosemount Aerospace Inc. Probe heater remaining useful life determination
US10962580B2 (en) 2018-12-14 2021-03-30 Rosemount Aerospace Inc. Electric arc detection for probe heater PHM and prediction of remaining useful life
US11061080B2 (en) 2018-12-14 2021-07-13 Rosemount Aerospace Inc. Real time operational leakage current measurement for probe heater PHM and prediction of remaining useful life
US11639954B2 (en) 2019-05-29 2023-05-02 Rosemount Aerospace Inc. Differential leakage current measurement for heater health monitoring
US11472562B2 (en) 2019-06-14 2022-10-18 Rosemount Aerospace Inc. Health monitoring of an electrical heater of an air data probe
US11930563B2 (en) 2019-09-16 2024-03-12 Rosemount Aerospace Inc. Monitoring and extending heater life through power supply polarity switching
US11293995B2 (en) 2020-03-23 2022-04-05 Rosemount Aerospace Inc. Differential leakage current measurement for heater health monitoring
US11630140B2 (en) 2020-04-22 2023-04-18 Rosemount Aerospace Inc. Prognostic health monitoring for heater

Also Published As

Publication number Publication date
CN1038880A (zh) 1990-01-17
IT8941602A0 (it) 1989-05-19
KR890017716A (ko) 1989-12-18
IT1232978B (it) 1992-03-13
JPH0225605A (ja) 1990-01-29
ES2014621A6 (es) 1990-07-16
JP2736344B2 (ja) 1998-04-02

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