Problem 52090. Convert Thermocouple output voltage (in mV) to Temperature (in C)

Created by David Hill

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<div style = "text-align: start; line-height: 20.44px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: none solid rgb(0, 0, 0); white-space: normal; "><div style="block-size: 42px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 21px; transform-origin: 407px 21px; vertical-align: baseline; "><div style="font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 21px; text-align: left; transform-origin: 384px 21px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 0px 0px; transform-origin: 0px 0px; "><span style="">Convert Thermocouples of types (B,E,J,K,N,R,S,T) output junction voltage (in mV) to temperature (in C) using NIST coefficients rounded to the nearest 0.01 C.</span></span></div></div></div>

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6 Solutions
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Last Solution submitted on Oct 16, 2021

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3 Comments

William on 25 Jun 2021

David, we have a discrepancy of 73.8 deg C in test problem 6 (type 'R' thermocouple) for all the values of v between 11.438 mV and 19.306 mV (8 cases).

Are Mjaavatten on 26 Jun 2021

In very many cases my rounded results differ from the tests by up to 0.03. I have no idea why. Increasing the accuracy in my calculations does not help. Would it be an idea to reduce the number of decimals to 1?

I concur with William: You may have an error in the second coefficient table for type 'R'.

David Hill on 29 Jun 2021

Test problem 6 fixed.

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Problem 52090. Convert Thermocouple output voltage (in mV) to Temperature (in C)

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Problem 52090. Convert Thermocouple output voltage (in mV) to Temperature (in C)

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