GB1584294A - Method and apparatus for measuring using an electrical component having an exponential characteristic curve - Google Patents

Method and apparatus for measuring using an electrical component having an exponential characteristic curve Download PDF

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Publication number
GB1584294A
GB1584294A GB44860/77A GB4486077A GB1584294A GB 1584294 A GB1584294 A GB 1584294A GB 44860/77 A GB44860/77 A GB 44860/77A GB 4486077 A GB4486077 A GB 4486077A GB 1584294 A GB1584294 A GB 1584294A
Authority
GB
United Kingdom
Prior art keywords
value
component
output value
output
accordance
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
GB44860/77A
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.)
Hewlett Packard GmbH Germany
Original Assignee
Hewlett Packard GmbH Germany
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 Hewlett Packard GmbH Germany filed Critical Hewlett Packard GmbH Germany
Publication of GB1584294A publication Critical patent/GB1584294A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01D3/02—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for altering or correcting the law of variation
    • 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
    • G01K7/22—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 non-linear resistance, e.g. thermistor
    • G01K7/24—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 non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit
    • G01K7/25—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 non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit for modifying the output characteristic, e.g. linearising
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/005—Circuits for altering the indicating characteristic, e.g. making it non-linear
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/50—Analogue/digital converters with intermediate conversion to time interval
    • H03M1/56—Input signal compared with linear ramp

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Technology Law (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Thermistors And Varistors (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
GB44860/77A 1976-10-27 1977-10-27 Method and apparatus for measuring using an electrical component having an exponential characteristic curve Expired GB1584294A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2648597A DE2648597C3 (de) 1976-10-27 1976-10-27 Verfahren und Vorrichtung zum LJnearisieren der Ausgangsgröße eines elektronischen Bauelementes

Publications (1)

Publication Number Publication Date
GB1584294A true GB1584294A (en) 1981-02-11

Family

ID=5991510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44860/77A Expired GB1584294A (en) 1976-10-27 1977-10-27 Method and apparatus for measuring using an electrical component having an exponential characteristic curve

Country Status (3)

Country Link
DE (1) DE2648597C3 (fr)
FR (1) FR2369568A1 (fr)
GB (1) GB1584294A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120102A1 (fr) * 1983-03-23 1984-10-03 Firma Carl Zeiss Dispositif de mesure de température
DE3313043A1 (de) * 1983-04-12 1984-10-18 Krauss-Maffei AG, 8000 München Schaltungsanordnung zum erfassen einer vielzahl von sich langsam aendernden betriebstemperaturen
EP0213407A3 (fr) * 1985-08-26 1990-05-23 Spacelabs, Inc. Méthode et dispositif pour la mesure de température corporelle avec plusieurs types de capteurs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1605392A (en) * 1968-08-23 1975-02-28 Electronic thermometer for medical applications - uses differential signal from two thermistors and stabilised voltage to avoid calibration
US3934476A (en) * 1969-09-11 1976-01-27 Lamb Ii Harry H Linear telethermometer
US3906391A (en) * 1974-06-14 1975-09-16 Westinghouse Electric Corp Linear period thermistor temperature oscillator
US3973147A (en) * 1975-10-28 1976-08-03 General Motors Corporation Temperature measuring circuit

Also Published As

Publication number Publication date
DE2648597C3 (de) 1979-05-31
DE2648597A1 (de) 1978-05-03
DE2648597B2 (de) 1978-09-28
FR2369568A1 (fr) 1978-05-26
FR2369568B1 (fr) 1983-07-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee