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TEMP006 for measuring Motorwinding Temperature

Tobias Pauli
Prodigy 20 points
Other Parts Discussed in Thread: TMP006

Hello,

Do you think it is possible to apply the TEMP006 Sensor in a Powertool (for example a Sander or a circular saw) to measure the temperature of the motor winding? The winding is made out of copper isolated with lacquer. And for the cooling of the motor a fan is mounted on the motorshaft.

The temperature can rise very fast depending on the applied load.

My concerns are that the airflow through the Motor in combination with the fast temperature increase may cause wrong temperature results.

Antoher concern is the wire itself. The wire is out of copper (polished, may cause reflections) and round, what makes it difficult to measure in an defined angle.

What is your opinion?

 

  • 0
    TI__Mastermind 27715 points

    Hello Tobias,

    This sounds like an application which would be difficult to implement successfully with the TMP006 for several reasons:

    • First, the TMP006 is sensitive to airflow and any significant airflow through the enclosure would cause errors in the measurement. 
    • If the quickly-changing temperature causes the local temperature of the TMP006 to heat up quickly, that will cause errors as well. 
    • Finally, copper is a low-emissivity material so it is a poor radiator of IR energy. Depending on how smooth the surface is, the emissivity of copper can be anywhere from 0.04 to 0.1, while we recommend material with emissivity > 0.9 for use with the TMP006. 

    Unfortunately I do not recommend the TMP006 in a system such as this.

    Best regards,

    Ian Williams
    Linear Applications Engineer
    High Performance Linear and Sensing Products 

  • 0 in reply to Ian Williams
    Prodigy 20 points

    Hello Ian,

    thank you very much for your quick support.

     

  • 0 in reply to Tobias Pauli
    TI__Mastermind 27715 points

    Tobias,

    You're very welcome.

    Regards,

    Ian Williams