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DLP NIRscan Nano EVM

Matthew Young
Prodigy 10 points

Hello,

I am currently implementing the DLP NIRscan Nano EVM in a design I am working on. After looking through the spec sheet, I see that there is an option to use round-to-linear fiber bundle to supply light to the spectrometer, but I am looking for more information. Specifically, I would like someone to point me to a round-to-linear fiber bundle that can be used with the DLP NIRscan Nano EVM and would appreciate some insight on how to attach this fiber bundle to the spectrometer itself. Also, will using a fiber bundle to deliver light to the spectrometer require the spectrometer to be re-calibrated?

Thanks in advance!

  • 0
    TI__Genius 12785 points

    Hello User,

    Welcome to the E2E forum and thank you for your interest in DLP® technology!

    We are considering what recommendations we can make for the fiber bundle. Can you point us to the specific section in the spec sheet that you are referencing?

    Regards,

    Austin

  • 0 in reply to Austin Snyder
    Prodigy 10 points

    Hello Austin,

    I am referencing section 6.2 in the data sheet.

    Looking at the data sheet, it appears like the reflectance module that contains the window, lamps, and reflection lens is removable and will not impact calibration of the spectrometer, is this correct? If this module can be removed, how would one go about doing this? Figure 1-5 in the data sheet shows one screw that looks like it can be removed that I believe holds the reflectance module in place, but from the figure, this is not very clear. If this module is indeed removable, I should be able to figure out how to implement a fiber bundle.

    Thanks for getting back to me so quickly,

    Matthew

  • 0 in reply to Matthew Young
    TI__Expert 7005 points

    Hello Mathew,

    The team will have to look into your use case and come back to you by the middle of next week.

    Regards,

    John

  • 0 in reply to John McKnight
    TI__Mastermind 23070 points

    Hello Mathew,

    Thank you for your patience.

    The DLPNIR Nano EVM is designed to support various sampling methods like reflective, transmissive and extended probe using fiber optic. The TI EVM comes with the reflective head. This is removable can be replaced by any of the other sampling head.

    Please visit our third-party ecosystem partner innoSpecrtra for fiber optic module. They can provide you the complete solution.

    InnoSpectra Corporation (inno-spectra.com)

    There are two types of calibration.

      1 . Factory calibration for wavelength, optical alignment etc. - The factory calibration for wavelength and alignment is applicable across sample method/head. Does not require recalibration when you change sampling head.

     2. Factory reference calibration for signal - The light output of the source is stored in the EVM and it is used for calculating Absorption.   The output of lamp changes with ageing, temperature, humidity etc,  It is good practice to periodically recalibrate this information using a 99% NIR reflective standards. You have to run this calibration again when you change the sampling head because the light source has changed.

    Regards,

    Vivek