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DLPNIRNANOEVM: question about the number of bands and customize wavelength range

Yang Hu2
Prodigy 30 points
Other Parts Discussed in Thread: DLPNIRNANOEVM

Hi,

I want to know how many bands the sensor has, and if I want to customize the wavelength range, is there any limits for the DLPNIRNANOEVM?

Thanks,

Yang

  • 0
    TI__Genius 9971 points

    Hi Yang,

    Welcome to the TI E2E forum!!

    The DLPNIRNANOEVM supports wavelength from 900-1700nm. Could you please elaborate your first question a bit more?

    Regards,

    Mayank

  • 0 in reply to Mayank Khandelwal
    Prodigy 30 points

    Hi Mayank,

    My first question is how many wavelength channels the device has. For instance, some NIR sensor has 6 bands. How many bands the device has?

    And, if I want a wavelength ranges 900nm through 2500nm, is there any way I can modify the device to achieve that?

    Thanks,

    Yang

  • 0 in reply to Yang Hu2
    TI__Genius 10925 points

    Hi Yang, 

    I assume by "bands" you are asking about the digital resolution or number of wavelength points of the obtained spectrum? This is explained in NIRScan Nano User Guide Sec 3.1.1 Scanning a Sample. Kindly check this section to understand how the user can control the digital resolution and within what limits. 

    Thanks & Regards,

    Hirak.

  • 0 in reply to Hirak Biswas
    Prodigy 30 points

    Hi Hirak,

    Thank you for the response. I read the User Guide Sec 3.1.1, for my understanding, it seems users can set the width of groups of pixels in either Column or Hadamard pattern in the GUI, does that means based on the width, users can define the number of bands themselves?

    And I have another question since my lab still figuring the most suitable wavelength ranges in the scale of 670nm ~ 2700nm for our samples. Is it possible for us to customize the wavelength range? For instance, maybe from 810nm through 2000 nm?

    Thanks,

    Yang

  • 0 in reply to Yang Hu2
    TI__Genius 10925 points

    Hi Yang,

    If you change the digital resolution, that specifies at how many wavelength points the intensity will be calculated. For example, for digital resolution 200, the intensity will be calculated at 200 different wavelength points within the specified wavelength range. So you will obtain 200 intensity values.

    As for customizing the wavelength range, currently neither the NIRScan Nano Optical path nor the internal SW is designed for extension of wavelength range beyond the specified limits. You can make your own modifications to both the SW and the optical path (source code and all design files are available on TI.com NIRScan Nano page), but TI can not assume any responsibility in case of any malfunction in this case. 

    If you feel that we were able to help you with your queries, kindly click "This resolved my query" below the resolving answer. 


    Thanks & Regards,

    Hirak.