temperature measurement of optical fiber

I am trying to find a way to measure the temperature of optical fiber.
I have a thermocouple (mechanically contacted) and FLIR thermal
camera.
It seems that two are giving a large differnece on measurement.
I am trying to figure out if there is something i did wrong. Or if
there is any fundamental limit.
.

Relevant Pages

  • Re: temperature measurement of optical fiber
    ... Optical fiber has pretty small mass. ... I would use the thermocouple to calibrate my camera then: ... Measure the temperature with the thermocouple when there is no light in the ... might influence the IR camera reading towards too high temperatures. ...
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    ... thermocouple could be correctly calibrarted. ... temperature between the two junctions. ... independent measurement of reference temperature, ...
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    ... What I need to do is program a temperature setpoint at the computer, disconnect the thermocouple, & apply a voltage at the thermocouple input to the control card such that the computer thinks that the redundant heating zone is at the required setpoint. ...
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    ... What I need to do is program a temperature setpoint at the computer, disconnect the thermocouple, & apply a voltage at the thermocouple input to the control card such that the computer thinks that the redundant heating zone is at the required setpoint. ...
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  • Re: Super-Zoom P&S Camera Beats DSLR (again) - Film at 11
    ... accuracy of that temperature is less than the dedicated 1-degree increment ... thermometer on your wall? ... Ever hear the phrase: "False Precision."? ... less accurately because a silly camera is now attached to it. ...
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