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OPT3001: Multiple tof's are phase calibrated at the same time

Cherry Zhou
Mastermind 22235 points
Part Number: OPT3001
Other Parts Discussed in Thread: OPT3101

Hi Team,

Requirement: calibrate multiple tof at the same time.

The customer would like to know will there be any interference with each other when phase calibration is performed on multiple tof at the same time? For example, if tof No.1 is transmitting and receiving (when tof No.2 is working), would placing tof No. 2 in any space position (without occlusion No. 1 of) interfere with Tof No. 1 operation? And why? 

Could you help check this case? Thanks.

Best Regards,

Cherry

  • 0
    TI__Genius 9380 points

    Cherry,

      Think of this like a WIFI router. The router and any device can operate in the same bandwidth. It's good channel separation and modulation techniques that allow multiple device to operate at the same time.

    In the case of the OPT3101, they operate at the same frequency. It's the modulation techniques that keep them separate. Light cross talk and optical saturation can occur. Typically two devices can operate next to each other with little interference. 

    However when calibrating it is not recommended to operate two devices at the same time to make sure you get the most accurate calibration. Once the calibration is complete, you can operate two devices near each other.  There may be some noise or saturation effects between the two but that should be minimal unless they can see each other directly. 

    If the customer has any questions it would be a good idea to get a better idea of the setup, and the reason why they want to calibrate two devices at once.