NL7117547A - Thermometric system - with thermal loss and inertia lag compensation of sensor - Google Patents

Thermometric system - with thermal loss and inertia lag compensation of sensor

Info

Publication number
NL7117547A
NL7117547A NL7117547A NL7117547A NL7117547A NL 7117547 A NL7117547 A NL 7117547A NL 7117547 A NL7117547 A NL 7117547A NL 7117547 A NL7117547 A NL 7117547A NL 7117547 A NL7117547 A NL 7117547A
Authority
NL
Netherlands
Prior art keywords
temp
sensor
degrees
thermal loss
lag compensation
Prior art date
Application number
NL7117547A
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 filed Critical
Priority to NL7117547A priority Critical patent/NL7117547A/en
Publication of NL7117547A publication Critical patent/NL7117547A/en

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
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • G01K7/021—Particular circuit arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

The sensor, whose output signal represents indicated temp. Tm is embedded in a mass of thermally conductive material of thermal capacity Cm, esp. is not 30 J/degrees C, within which is embedded a resistance or Peltier effect heater, to which compensating energy W is fed, calculated by the formula: W = Cm dTm/dt In this way Tm is made much more closely approximate to the true temp. TR. Specif. the error is reduced to less than approx. ca 1 degree in 80 degrees C after 5 mins. operation c.f. >6 degrees without compensation. Esp. for use in temp. measurement of dirty media whose temp. is variable.
NL7117547A 1971-12-21 1971-12-21 Thermometric system - with thermal loss and inertia lag compensation of sensor NL7117547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7117547A NL7117547A (en) 1971-12-21 1971-12-21 Thermometric system - with thermal loss and inertia lag compensation of sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7117547A NL7117547A (en) 1971-12-21 1971-12-21 Thermometric system - with thermal loss and inertia lag compensation of sensor

Publications (1)

Publication Number Publication Date
NL7117547A true NL7117547A (en) 1973-06-25

Family

ID=19814743

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7117547A NL7117547A (en) 1971-12-21 1971-12-21 Thermometric system - with thermal loss and inertia lag compensation of sensor

Country Status (1)

Country Link
NL (1) NL7117547A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995018961A1 (en) * 1994-01-10 1995-07-13 Thermoscan, Inc. Noncontact active temperature sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995018961A1 (en) * 1994-01-10 1995-07-13 Thermoscan, Inc. Noncontact active temperature sensor
US5645349A (en) * 1994-01-10 1997-07-08 Thermoscan Inc. Noncontact active temperature sensor

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