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Body temperature

francois donnet
Prodigy 20 points
Other Parts Discussed in Thread: TMP006

Dear All,

Do you know if it will be accurate to check body temperature as an IR sensors will do?

Did you test it?

Thank you.

François

  • 0
    TI__Mastermind 25060 points

    Francois,

    What device are you interested in using to measure body temperature?

    Please reference the following forum posts for initial details on our devices and measuring body temperature.

    Silicon Based sensor:  http://e2e.ti.com/support/other_analog/temperature_sensors/f/243/p/151645/548801.aspx#548801

    TMP006 Sensor:           http://e2e.ti.com/support/other_analog/temperature_sensors/f/243/p/110878/393235.aspx#393235

  • 0 in reply to Chris Featherstone
    Prodigy 20 points

    Dear Chris,

    Thanks a lot for your quick reply. I had a look to both links. We are working on a device where we monitor body temperature (this is one of the functions). So fare we tested termistors which are accurate but have to be insulated. Plus they have to be placed on the pcb itself and it is hard to build them close to skin.

    We are testing IR sensors as well which are less accurate and we face the same kind of problems. I heard about your product and we will need to test it. But apparently it could work well for us and it will be easy to use on a pcb.

    The sensor will be very close to skin (+/- 3mm), do you think it could be accurate enough?

    Thanks.

    François

  • 0 in reply to francois donnet
    TI__Mastermind 27715 points

    Hi François,

    Being placed very close to the skin is good for the application as the skin will take up the entirety of the TMP006 field of view. However, what is your target accuracy? The typical accuracy of the TMP006 is ±1°C, which I doubt would be suitable for a medical application. Achieving significantly greater accuracy would require calibrating every unit, and even then the variability of the application (different skin color, roughness, moisture) would introduce errors.

    Best regards,

    Ian Williams
    Linear Applications Engineer
    Precision Analog & Sensing Products