ES8700766A1 - Un dispositivo de alarma de calibrado para termopares - Google Patents

Un dispositivo de alarma de calibrado para termopares

Info

Publication number
ES8700766A1
ES8700766A1 ES546391A ES546391A ES8700766A1 ES 8700766 A1 ES8700766 A1 ES 8700766A1 ES 546391 A ES546391 A ES 546391A ES 546391 A ES546391 A ES 546391A ES 8700766 A1 ES8700766 A1 ES 8700766A1
Authority
ES
Spain
Prior art keywords
thermocouple
warning device
coulometer
calibration warning
transistor
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
Application number
ES546391A
Other languages
English (en)
Other versions
ES546391A0 (es
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.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey PLC
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 Johnson Matthey PLC filed Critical Johnson Matthey PLC
Publication of ES546391A0 publication Critical patent/ES546391A0/es
Publication of ES8700766A1 publication Critical patent/ES8700766A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
    • G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K15/00—Testing or calibrating of thermometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

DISPOSITIVO DE ALARMA DE CALIBRADO PARA TERMOPARES. CONSTA DE UN AMPLIFICADOR (12) CON SU ENTRADA CONECTADA AL TERMOPAR Y QUE SUMINISTRA CORRIENTE A UN VOLTAMETRO (18), EL CUAL TIENE UNA GANANCIA DE TENSION SUSTANCIALMENTE LINEAL Y SU SALIDA SE HALLA CONECTADA A LA BASE DE UN TRANSISTOR (14) QUE CONTROLA LA CORRIENTE A TRAVES DEL VOLTAMETRO (18), ELIGIENDOSE LAS CARACTERISTICAS DEL AMPLIFICADOR Y DEL TRANSISTOR DE MODO QUE A TENSIONES BAJADAS EN EL TERMOPAR, LA CORRIENTE QUE ATRAVIESA EL VOLTAMETRO (18) SEA DESPRECIABLE. DE APLICACION EN EL CONTROL DE LA TEMPERATURA DE HORNOS, CON GRAN PRECISION.
ES546391A 1984-08-23 1985-08-23 Un dispositivo de alarma de calibrado para termopares Expired ES8700766A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848421451A GB8421451D0 (en) 1984-08-23 1984-08-23 Calibration warning device

Publications (2)

Publication Number Publication Date
ES546391A0 ES546391A0 (es) 1986-10-16
ES8700766A1 true ES8700766A1 (es) 1986-10-16

Family

ID=10565743

Family Applications (1)

Application Number Title Priority Date Filing Date
ES546391A Expired ES8700766A1 (es) 1984-08-23 1985-08-23 Un dispositivo de alarma de calibrado para termopares

Country Status (8)

Country Link
US (1) US4660993A (es)
EP (1) EP0175492A3 (es)
JP (1) JPS61124833A (es)
KR (1) KR870002536A (es)
ES (1) ES8700766A1 (es)
GB (1) GB8421451D0 (es)
PT (1) PT81006B (es)
YU (1) YU134685A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6850859B1 (en) 2003-12-03 2005-02-01 Watlow Electric Manufacturing Company Sensor drift compensation by lot
US7447607B2 (en) * 2004-08-31 2008-11-04 Watow Electric Manufacturing System and method of compensation for device mounting and thermal transfer error
US8702306B2 (en) 2007-09-21 2014-04-22 Siemens Industry, Inc. Systems, devices, and/or methods for managing a thermocouple module

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738174A (en) * 1972-03-01 1973-06-12 King Nutronics Corp Temperature calibration system
DE2221398A1 (de) * 1972-05-02 1973-11-22 Bosch Gmbh Robert Elektronischer schalter fuer hohe temperaturen
DE2426002A1 (de) * 1974-05-30 1975-12-11 Siemens Ag Einrichtung zum messen und anzeigen der temperatur eines mediums, insbesondere des abgases einer verbrennungskraftmaschine
US4120201A (en) * 1977-03-18 1978-10-17 Partlow Corporation Thermocouple temperature measurement circuit having cold junction compensation
US4132116A (en) * 1977-10-21 1979-01-02 Hewlett-Packard Gmbh Method for linearizing the characteristic curve of an electronic component and an apparatus for implementing the same
JPS5733332A (en) * 1980-08-05 1982-02-23 Mitsubishi Heavy Ind Ltd Detection of abnormality in temperature sensor
DE3208849A1 (de) * 1981-03-12 1982-11-11 Spembly Ltd., Andover, Hampshire Kaeltechirurgische sonde
ATE29926T1 (de) * 1981-03-24 1987-10-15 Lawrence J Karr Zeit-temperatur-indikator.
US4377346A (en) * 1981-06-04 1983-03-22 Honeywell Inc. Thermostatic apparatus
US4537516A (en) * 1982-09-27 1985-08-27 Saul Epstein Electronic thermometer
GB2136135B (en) * 1983-03-11 1987-06-03 Johnson Matthey Plc Calibration warning apparatus

Also Published As

Publication number Publication date
JPS61124833A (ja) 1986-06-12
ES546391A0 (es) 1986-10-16
US4660993A (en) 1987-04-28
YU134685A (en) 1988-06-30
EP0175492A2 (en) 1986-03-26
PT81006A (en) 1985-09-01
PT81006B (pt) 1992-05-29
EP0175492A3 (en) 1987-11-19
GB8421451D0 (en) 1984-09-26
KR870002536A (ko) 1987-03-31

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