ES2014621A6 - Measurement system monitoring state of fluid - Google Patents

Measurement system monitoring state of fluid

Info

Publication number
ES2014621A6
ES2014621A6 ES8901656A ES8901656A ES2014621A6 ES 2014621 A6 ES2014621 A6 ES 2014621A6 ES 8901656 A ES8901656 A ES 8901656A ES 8901656 A ES8901656 A ES 8901656A ES 2014621 A6 ES2014621 A6 ES 2014621A6
Authority
ES
Spain
Prior art keywords
sensor
delta
pair
circuits
thermocouples
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
ES8901656A
Other languages
Spanish (es)
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.)
CBS 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
Publication of ES2014621A6 publication Critical patent/ES2014621A6/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)

Abstract

PURPOSE: To monitor the state of liquid in a pressure vessel containing steam and water by an arrangement wherein a control means urge a selected set selected by a selective urging means and controls a measuring means to determine the difference of detected temperature outputs and output a corresponding temperature difference. CONSTITUTION: A shield 40 arranged around sensor probes 12A, 12B lowers steam flow rate around the split tube at the sensor or the probe to permit flow-in of water and a limited flow can touch the sensor probe directly when holes 42 are made symmetrically and the sensor is set in the channel. Thermocouples TC A1, B1 are connected as a pair while thermocouples TC A2, B2 are connected as a supplementary pair and a conduction checker 12 checks conduction of each pair intermittently. Since interface circuits 118, 129 connect the internal components of control circuits 100, 102 with a system controller 104 and a selector 122 supplies the circuit 129 with one of outputs [Delta]T1, [Delta]T2, any one output from TC TEMP CIRCUITs 124-1, 124-2 is selected and a voltage signal STEMP proportional to the temperature difference [Delta]T detected by a thermocouple is outputted.
ES8901656A 1988-05-20 1989-05-17 Measurement system monitoring state of fluid Expired - Lifetime ES2014621A6 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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

Publications (1)

Publication Number Publication Date
ES2014621A6 true ES2014621A6 (en) 1990-07-16

Family

ID=26892148

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8901656A Expired - Lifetime ES2014621A6 (en) 1988-05-20 1989-05-17 Measurement system monitoring state of fluid

Country Status (6)

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

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025220A1 (en) * 2006-05-29 2007-12-06 Areva Np Gmbh Device for level measurement
DE102008022363B4 (en) * 2008-05-06 2012-01-19 Areva Np Gmbh Method and device for monitoring the level of a liquid in a liquid container
CN102455204B (en) * 2010-10-19 2013-04-10 中国石油化工股份有限公司 Liquid level measurement system and method for kettle-type container and kettle-type container
CN102628706B (en) * 2012-05-02 2014-04-02 科博达重庆汽车电子有限公司 Subsection type liquid level measuring module
JP6082242B2 (en) * 2012-12-13 2017-02-15 日野自動車株式会社 Water temperature sensor backup system
CN103672847B (en) * 2013-12-19 2015-07-08 中国石油天然气股份有限公司 Steam injection boiler with convection section high-temperature alarm device and alarm method thereof
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
IT1232978B (en) 1992-03-13
JP2736344B2 (en) 1998-04-02
JPH0225605A (en) 1990-01-29
CA1311028C (en) 1992-12-01
IT8941602A0 (en) 1989-05-19
KR890017716A (en) 1989-12-18
CN1038880A (en) 1990-01-17

Similar Documents

Publication Publication Date Title
ES2014621A6 (en) Measurement system monitoring state of fluid
US2398606A (en) Ultra high frequency power measurement
US4691713A (en) Electronic clinical thermometer
ES8900024A1 (en) Thermal liquid level measuring device.
EP0349317A3 (en) Temperature measurement of flowing fluids
ES8302906A1 (en) Device for locally measuring the power in a nuclear reactor.
CA2259088C (en) Thermal dispersion probe with microcomputer controller
ES2007906A6 (en) Differential temperature sensor and measuring system for incorporating the same
SU545869A1 (en) Heat flow meter
SU1154534A1 (en) Heat flowmeter
SU1150484A1 (en) Thermal flowmeter
JPS60186714A (en) Flow rate measuring instrument
GB1033741A (en) Fluid flow measurement
SU1711084A1 (en) Liquid or gas velocity meter and direction indicator
RU14076U1 (en) LIQUID FLOW METER
FR2246846A1 (en) Linear flow meter based on thermodynamic laws - measures temp upstream and downstream of heat source in fluid flow
SU1280325A1 (en) Flowmeter
SU1100550A1 (en) Device for adiabatic heating/cooling
EP0348243A3 (en) Calibration of thermal conductivity and specific heat devices
SU934253A1 (en) Device for measuring thermal inertia factor of thermocouples
KR0156161B1 (en) Flow meter measuring device of semiconductor equipment
SU691760A1 (en) Thermoanemometric system
SU1679198A1 (en) Device for measuring flow rates of fluids
SU1052963A1 (en) Device for measuring thermal physical characteristics of substance
SU1437610A1 (en) Method of checking ash-slag deposits on boiler heating surface

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19980401