DLPNIRNANOEVM: Embedding program issues

chenglq

Hello, senior IT engineer, when I read the underlying program, I found that there are three scanning mode definitions, and I want to confirm what functions each of these three types of scanning corresponds to and what are the differences

over 2 years ago

0 Akhil Guntumadugu over 2 years ago

TI__Expert 3825 points

Hello Cheng,

Colum Scan: Illuminate one column of DMD and get the sample data corresponding to that column.

Hadamard Scan: Illuminate group of columns at a time and then sample data from sensor. Later further processing or calculations needs to be done to determine the corresponding data for each wavelength.

Slew Scan: Custom scan configuration that user has set. It can be modified Column or hadamard scan where we can define bandwidth of interest as needed.

For more details information check out from (5:51) : https://www.ti.com/video/series/experiment-innovative-sensing-techniques-using-dlp-technology-determine-material-properties.html

Regards,

Akhil

0 chenglq over 2 years ago in reply to Akhil Guntumadugu

Prodigy 180 points

Thank you very much for your reply, very useful for me, I think 854*0.8/228 = 3 pixels; So is it possible to assume that the scanning method of DLPNIRNANO is Hadamard scan?

0 Austin Snyder over 2 years ago in reply to chenglq

TI__Genius 12805 points

Hello Cheng,

Hadamard is an option for scanning method. Please see Section 3.1.1 of the DLP NIRscan Nano EVM User's Guide for more details on scan configurations.

Regards,

Austin

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DLPNIRNANOEVM: Embedding program issues