I have a pair of T&R ultrasonic Sensors (Those that are used as range metering).
They are given to me by a friend so I do not have the specification for them.
The question is how do I measure the Capacitance and the impedance of them please?
Besides, can I remove the capacitance behavior of them by an inductor? If so, How to calculate it?
I want to learn how to measure the impedance of them??
About the capacitance I wanted to measure it and then see if it is possible to reduce it by an inductor to get more eficency out of the sensors?
Do I need an Capacitance meter or something like that?
I want to learn how to measure the impedance of them??
About the capacitance I wanted to measure it and then see if it is possible to reduce it by an inductor to get more eficency out of the sensors?
If the piezo transducer has an inductor in series that resonates with the capacitance of the transducer at the carrier frequency then the transducer will have a higher output level at that frequency.
But the bandwidth will probably be too narrow for speech.
If the piezo transducer has an inductor in series that resonates with the capacitance of the transducer at the carrier frequency then the transducer will have a higher output level at that frequency..