This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Help me to recommend a distance detection method

I would like to know if TI has a method in TOF or ultrasound or other technologies,
which can detect the distance between 1cm-20cm and the fov can reach 120. It's better to go through the plastic board.I wonder if there is such AN EVM.
I used the TI capacitance detection, but it was greatly interfered by the motor noise.

  • Hello, 

    Ultrasonic solution can be a great solution here. In regards to the motor noise the Ultrasonic may still couple with the noise and there is enough flexibility in the part to tweak the gain settings to overcome the noise. 

    I would recommend to begin with FAQ on the web in regards to ultrasonic solutions

    https://e2e.ti.com/support/sensors/f/1023/t/748143 

    There is also an appnote here that describes the motor noise coupling to Ultrasonic solution and provide some guidance on mitigation. For distance measuring 1cm I would recommend we use bi-static mode.