|MadSci Network: Engineering|
There are two common solutions to this problem used by industrial sensor manufactures: either provide cooling for the sensor via flowing water or air, or separate the electronics from the actual sensor apparatus. If your sensor is in intimate contact with the pipe for a long enough period of time, no amount of insulation will prevent it from reaching the steady-state temperature of the pipe. Good insulation will just make it take longer. If you can take your measurements quickly, it may be possible to attach the sensor, take the reading, and remove it before you cook it. My recommendation would be to separate the electronics from the sensor by wire and design it so that you can easily attach a new sensor. This way, if you do cook the sensor, you are minimizing the exposure to the rest of the device. Regards, Chris Seaman
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