I need to design a pressure sensor that has no power source attached to it. Is it possible to send a signal and get back some other signal, that is a function of pressure using only passive components?
I was thinking of shifting frequencies between a range so that the frequency deviation between the output and input gives me the sensor output. It is imperative that there is not battery or other sources attached to the sensor.
hi....prashanth...
u can use the pressure sensor...that can shows the dual frequency to operate in dual mode.....
the thing is that the initial frequency must match with the phase & frequency of pressure sensor.....
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