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How to test variable inductance transducer ? thanks

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dineshdeshmuk

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How to test a variable inductance transducer ?

thanks
 

Here is the principles for measuring and testing variable inductance transducers................

Tests for Inductive Transducers 01.jpg
 
kak111 said:
Here is the principles for measuring and testing variable inductance transducers................

View attachment 63489
Click to expand...

In the circuitry that you provided, how to apply the AC supply on the coil ? means are there the two ends of the coil present ........... ?

What should be the output voltage , that is measured by AC voltmeter ? Should it be the same as calculated by the formula that you provided i.e. Vr = Rmeas * Is .......... Am i right ?

what range of AC supply can be provided to test all these three types & of what range of frequency ?

thanks a lot
 
In the circuitry that you provided, how to apply the AC supply on the coil ? means are there the two ends of the coil present ........... ?
Click to expand...
Circuit A: We measure current through coil by voltage across Rmeas.
Circuit B: Act as transformer
Circuit C: Changes in magnet field generate measured voltage
What should be the output voltage , that is measured by AC voltmeter ?
Click to expand...
Cant say because...........
Measured values depends on variables in the formula ............

Zcoil = Rcoil + jXcoil = Rcoil + j 2*PI*f*Lcoil


what range of AC supply can be provided to test all these three types & of what range of frequency ?
Click to expand...
used frequency depends on the coil parameters.

But use allways additional series resistor so that current can not
increase too high. ( for sensors maybe 10mA is enough )
Frequency in range 50Hz... 10kHz
 
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