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Temperature, TCR Coefficient and Electrical Resistance Change Calculator

Calculate Temperature & Resistance Change Parameters
Select Answer Mode
Start Temperature (T0) [?]
End Temperature (T1) [?]
TCR (αR) [?]
Start Resistance (R0) [?]
End Resistance (R1) [?]

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✕ clear settings

Change the answer mode for this tool by selecting start temperature (T0), end temperature (T1), temperature coefficient of resistance (αR), start resistance (R0) or end resistance (R1) as the parameter to calculate instead



Temperature sensor products
  • Concrete cooling tower submersible temperature probe
  • -10…+60°C Temperature Range Sensor with 4-20mA Current Output Signal Transmitter
  • Water temperature depth sensor for cooling tower sump
  • ATM/T Pressure and Temperature Dual Output Transmitter

Request info on temperature sensor products for your application.

Contents

  • Related Tools
  • User Guide
    • Formulas
      • Symbols
    • Start Temperature (T0)
    • End Temperature (T1)
    • Temperature Coefficient of Resistance (TCR, αR)
    • Start Resistance (R0)
    • End Resistance (R1)

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User Guide

This tool will calculate any parameter from the formula for determining how much electrical resistance changes with temperature, which includes the start temperature, end temperature, temperature coefficient of resistance (TCR), start resistance and end resistance.

Formulas

The formulas used by this temperature, TCR and resistance change calculator to determine each individual parameter are as follows:

T0 = T1 – (R1 / R0 – 1) / αR

T1 = T0 + (R1 / R0 – 1) / αR

αR = (R1 / R0 – 1) / (T1 – T0)

R0 = R1 / (1 + αR · (T1 – T0))

R1 = R0 · (1 + αR · (T1 – T0))

Symbols

  • T0 = Start temperature
  • T1 = End temperature
  • αR = Temperature coefficient of resistance (TCR)
  • R0 = Start resistance
  • R1 = End resistance

Start Temperature (T0)

This is the temperature of the object before the temperature is increased.

End Temperature (T1)

This is the temperature of the object after the temperature has been increased

Temperature Coefficient of Resistance (TCR, αR)

This is a fixed value which is used to determine how much a change in temperature will affect the electrical resistance of a particular material. The coefficient defines the fractional change in resistance of a material per unit change in its temperature.

Start Resistance (R0)

This is the electrical resistance of the material when it is at the start temperature T0 .

End Resistance (R1)

This is the electrical resistance of the material following a change temperature from T0 to T1 .

Temperature measurement products
  • Water well 30mH2Og range 4-20mA out freshwater level sensor with RTD
  • ProSens Environmental Monitor and Controller
  • Intrinsically safe version of LEO Record Ex logger for recording pressure up to 300 bar & temperature up to 40degC
  • 0…100°C Temperature Range Sensor with 4-20mA Current Output Signal Transmitter

Request info on temperature measurement products for your application.

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Tool Feedback

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Measure Temperature In A Liquid

Submerge this STT-26 Probe to measure the temperature of a liquid and transmit a 4-20mA current loop output signal.
Submerge this STT-26 Probe to measure the temperature of a liquid and transmit a 4-20mA current loop output signal.

Product Selection Guides

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