GB1562429A - Sensing circuits for resistance thermometers - Google Patents

Sensing circuits for resistance thermometers Download PDF

Info

Publication number
GB1562429A
GB1562429A GB46937/76A GB4693776A GB1562429A GB 1562429 A GB1562429 A GB 1562429A GB 46937/76 A GB46937/76 A GB 46937/76A GB 4693776 A GB4693776 A GB 4693776A GB 1562429 A GB1562429 A GB 1562429A
Authority
GB
United Kingdom
Prior art keywords
circuit
level
voltage
signal
output
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
GB46937/76A
Other languages
English (en)
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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 ASEA AB filed Critical ASEA AB
Publication of GB1562429A publication Critical patent/GB1562429A/en
Expired 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
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • G01K7/20—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)
GB46937/76A 1975-11-12 1976-11-11 Sensing circuits for resistance thermometers Expired GB1562429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7512673A SE395059B (sv) 1975-11-12 1975-11-12 Anordning for indikering av avbrott i metkretsen vid motstandstermometrar i termovakter

Publications (1)

Publication Number Publication Date
GB1562429A true GB1562429A (en) 1980-03-12

Family

ID=20326054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46937/76A Expired GB1562429A (en) 1975-11-12 1976-11-11 Sensing circuits for resistance thermometers

Country Status (7)

Country Link
CH (1) CH608101A5 (enExample)
DE (1) DE2648599A1 (enExample)
FI (1) FI763224A7 (enExample)
FR (1) FR2331781A1 (enExample)
GB (1) GB1562429A (enExample)
NO (1) NO763817L (enExample)
SE (1) SE395059B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2744786A1 (de) * 1977-10-05 1979-04-19 Interatom Korrektur der verzoegerung in messketten
JPS5856006A (ja) * 1981-09-29 1983-04-02 Sharp Corp 温度調節器の故障検出方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728904A (en) * 1954-06-29 1955-12-27 Arthur J Waldorf Supervised fire detection and alarm system
US3176284A (en) * 1963-09-27 1965-03-30 Specialties Dev Corp System responsive to plural conditions with false indication prevention
US3839711A (en) * 1970-04-02 1974-10-01 Minnesota Mining & Mfg Security system and control circuit
US3699569A (en) * 1972-01-28 1972-10-17 Minnesota Mining & Mfg Security system for indicating fire, intrusion or the like
US3836854A (en) * 1973-07-02 1974-09-17 Lorain Prod Corp Alarm circuit for monitoring the amplitude of a-c voltages

Also Published As

Publication number Publication date
NO763817L (enExample) 1977-05-13
FR2331781A1 (fr) 1977-06-10
CH608101A5 (en) 1978-12-15
FI763224A7 (enExample) 1977-05-13
SE7512673L (sv) 1977-05-13
DE2648599A1 (de) 1977-05-26
SE395059B (sv) 1977-07-25

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed