frequency

[MCUprogrammer]

Hello
Is there a sensor that I can measure the frequency in the human body? Or how can I measure the frequency of the body?
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MCUprogrammer
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[Ttelmah]

No.
There is no single frequency. The various parts of the human body have
different resonances. The one you are probably talking about is the primary
natural frequency of a standing body, which is typically about 7.5Hz.
Measuring this is normally done on a vibrating platform.
You'd need multiple wide band frequency detectors and read the values
at each one, then perform a spectrum analysis of the values from this.
So no simple single sensor, a lot of sensors, and a lot of maths.
Do a search on the Dewesoft human body solution, and ISO 2631.
This is for the seated position rather than standing. and is measured
using forced impacts.