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Sensing Technologies

MiVa_4722436
New Contributor

Hello there,

I am new here and I found interesting solution for my application based on PSoC® 4700 MCU. I need to build inductive sensor based on eddy current.

I understand that the PSoC® 4700 MCU measures amplitude of oscillation which changes with gap.

I need to sense

  • range 0.2-2 mm
  • sample rate 10kHz
  • resolution at least 12 bits
  • minimum latency (<50 usec)

I know that resolution and precision in general is a function sensor diameter, frequency and other parameters but before I design anything...

  • What is achievable effective resolution of inductive sensor based on PSoC® 4700 MCU if running at 10 kHz sample rate?
  • What would be the latency caused by measurement (how much time is used for measurement period and for data post processing)?

Thank you very much,

Michael

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1 Solution
Hari
Moderator
Moderator

Hi miva_4722436

You can find out the scan time (the time required to scan once) in the Scan Order tab in MagSense configurator.

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The resolution, which is termed number of subconversions must be set according to the design. As mentioned in previous post, higher number of sub-conversions, the better will be the signal. It is recommended to start with 100 and increase it till you obtain an SNR of atleast 5:1.

Thanks,
Hari

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