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VNava
VNava
Associate III
July 23, 2020
Solved

Can VL53L3CX sensors close together, working at the same time, disturb each other?

  • July 23, 2020
  • 2 replies
  • 776 views

Hi,

my name is Vincenzo.

Trying to make some simple applications with ToF VL53L3CX the following doubt arose:

Can several ToFs, close to each other, work at the same time without the risk of the measurements being disturbed?

In other words, if different ToF VL53L3CX, set in the same way, start the measurement at the same time, is it possible that the laser generated by a ToF is received by the collector of a different ToF?

Thanks in advance for your support

    This topic has been closed for replies.
    Best answer by Julien NGUYEN

    Hi Vincenzo,

    Good question! Of course. several L3CX can work together without interference. Actually each sensor has its own reference SPAD, it knows perfectly the time zero when the laser pulse is sent. The photons received from other devices will be seen as noise. The SNR will be impacted but not the measure accuracy or interference issue. Thanks, Julien

    2 replies

    Julien NGUYEN
    Julien NGUYENBest answer
    ST Employee
    July 23, 2020

    Hi Vincenzo,

    Good question! Of course. several L3CX can work together without interference. Actually each sensor has its own reference SPAD, it knows perfectly the time zero when the laser pulse is sent. The photons received from other devices will be seen as noise. The SNR will be impacted but not the measure accuracy or interference issue. Thanks, Julien

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    VNava
    VNavaAuthor
    Associate III
    July 23, 2020

    Great! Thank you again.

    Vincenzo

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