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Original question:

DLPNIRSCANEVM: Calibration

DLPNIRSCANEVM: Define calibration data with NIRScan Nano mobile app

user6211620
Prodigy 20 points
Part Number: DLPNIRSCANEVM

Hi,

I'll use the NIRScan nano in field conditions, so I have to calibrate every day. Is it possible to do the calibration with the NIRscan nano app?

Thanks!

  • 0
    TI__Mastermind 20045 points

    Hello,

    I am not sure if this is possible with the current app. Please allow us to look into this and get back to you this week.

    Thanks,
    Kyle

  • 0 in reply to Kyle Rakos
    TI__Mastermind 22830 points

    Hello,

    Could you please explain what you mean by "calibrate"?

    If you meant calibrating for optical engine and wavelength as explained in section1.2.1 Optical Engine of DLP NIRScan Nano user-guide then No. This level of calibration only required when their mechanical shift or adjustment in optical engine. It can be done only at factory.

    http://www.ti.com/lit/ug/dlpu030g/dlpu030g.pdf

    If you meant taking a "reference Scan" as explained in  3.1.8 Utilities section of user guide then yes. However, every day may to too frequent.  The reference scan is taken to account for variation in lamp intensity due to aging and environment factor like temperature & humidity.

    The required frequency of reference scan will depend on your application, use case and target accuracy. You may run your own experiment starting with  once in 2 week and  gradually fine tune it to meet your application requirement.

    regards,

    Vivek

  • 0 in reply to Vivek Thakur
    Prodigy 20 points

    Hello, Vivek

    first at all, thanks for your answer.

    Sorry, my message it's no so clear. I wanted to know how to define a reference scan through the mobile app (NIRscan Nano), not the Windows GUI.

    The use of my nano will be in the field, so I will have different conditions of humidity and temperature every day, that's why I thought I need to set a reference scan every day.

    Thanks!

    Regards!

  • 0 in reply to user6211620
    TI__Mastermind 22830 points

    Hello,

    The mobile application was developed by a third-party and this implementation does not support taking reference scan through the app. In majority of use cases, the reference scan may be required infrequently  ex. once in week or longer. It can be done with a desktop GUI.

    In case, you want to develop a mobile app, you can implement the reference scan feature by taking a scan and then sending a command to write the last scan as reference scan  by using this command - "Store last scan data in EEPROM as reference calibration data - NNO_CMD_REFCAL_PERFORM".

    regards,

    Vivek