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TMP006x - Any recommendation for sensor protection film ?

Kawai
Guru 19775 points
Other Parts Discussed in Thread: TMP007, TMP006

Hi Team,

I have found some thread answered about protection lens, however, do you have any information for protection films ? Our customer had tried three types of films which has good transmission characteristic (over 80% and 90%) for 4um to 16um wavelength, however, their evaluation result were not so good that device sensitivity was not good enough.

Could you please give us advice how to improve the sensitivity ?

Best Regards,
Kawai

  • 0
    TI__Genius 15760 points

    Hi Takushi,

    Tommy will reply to you shortly!

    Regards

  • 0 in reply to Mayrim Verdejo
    Guru 19775 points
    Hello Tommy-san, Mayrim-san,

    Any updates ? We would appreciate it if you could share part number if you have any evaluated protection film.

    Best Regards,
    Kawai
  • 0 in reply to Kawai
    TI__Intellectual 1811 points

    Kawai-san,

       Please see the link below.  This Polypropalene based material or this type of material, as there are others on the market,  have proven to be very good at passing IR in the wavelenghts TMP007/006 is sensative to.     Other materials such as Germanium, Zinc Selenide, Zinc Sulfide, and Sodium Cloride windows.  These materials are more expensive, but also do a good job passing IR in the range of the TMP006/007.  

     

    http://www.edmundoptics.com/optics/windows-diffusers/specialty-windows/infrared-ir-material-windows/2043/ 

    Regards,

    Tommy Santoyo

    MHRS Sensing Apps Team

  • 0 in reply to Tommy Santoyo
    Guru 19775 points

    Hello Tommy-san,

    Thank you for the information. Regarding the Edmund optics IR material, transmission characteristic does not seem so good. I believe 4um to 16um is the IR wavelength required for the device. However, transmission characteristic of this material is lower than 30% for 6.5-8.0um and 13.5-14.0um. Were there no problem using this material ?

    Best Regards,
    Kawai

  • 0 in reply to Kawai
    TI__Intellectual 1811 points

    Kawai-san,

         Our testing has been done with a wide band black body.   The transmission in certin bands is very low, as shown in the chart.  But most object that our customers want to measure, such as skin, metal surfaces, ceramic surfaces, water, etc all have a wide band IR output.  We have tested this material in our labs with a wide band black body and our results show about 80% trasmission vs.  not having the film present.   The only problem I have found with this material is it is somewhat soft, and has  a relativley low  100°C temp rating.   The only other option seems to be the hard windows made of the other materials I pointed out.

     

    Regards,

    Tommy Santoyo

    MHRS Sensing Apps Team

  • 0 in reply to Tommy Santoyo
    Guru 19775 points
    Hello Tommy-san,
    Thank you for the further information. We will ask customer to try this Edmund Optics IR film.
    Best Regards,Kawai