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IR Passive sensor range

Alexandra L'Heureux
Prodigy 30 points
Other Parts Discussed in Thread: TMP006

Hi,

I have a practical question in regards to the TMP006 IR temperature sensor. 

The passive IR sensor is capable of sensing the temperature of an object, but how far can the object be located in order to obtain a fair reading.

I am looking for the upper limit of the distance at which the sensor can capture the temperature of an object. 

Thank you, 

Alex

  • 0
    TI__Expert 7945 points

    Hello Alex,

    It all depends on the accuracy you are trying to achieve,as you may already know that with increasing distance the accuracy of the object temperature lowers (unless we use a lens based approach). Distances <6 inches should be able to provide you good accuracies(<2 deg depending on the setup), as long as the object occupies its entire field of view.

    Since airflow, temperature range, object's emissivity and size of the measure area play a major role in accuracy of the IR temp sensor,  I can provide you specific answers if you can explain more about your intended application.

    Best Regards,

    Abhi