Can anyone suggest me good amplifier IC for PZT sensor? I need to amplify the ultrasonic wave of around 100 KHz frequency. I have tried some amplifier IC but doesn't seem to work.
What output are you getting from your PZT sensor? How did you configure your amplifier? Could you elaborate more on what you mean when you say it doesn't seem to work? If you have scope plots or any measurements available, that would be very helpful. Also, it would help if you could give more information about how you plan to use your sensor.
From PZT sensor I am get ultrasonic wave of 100 KHz. Previously I used amplifer IC AD8066 and also tried with LM392, but couldn't get the signal. recently I tried AD745, but it also generated unwanted electrical noise. Also with AD745 signal keeps fluctuating. I attached here the circuit configuration and signal I got withe circuit. Please help me regarding this.
Have you tried isolating the amplifier from the sensor and testing in on its own? If you haven't, could you isolate the amplifier and try to input maybe a 1mV DC voltage? I would just like to make sure whether the noise is really coming from the amplifier. It may just be a problem with the way the signal from the sensor is being received.
I did try it with out the amplifier. I didn't see any noise on doing that. So it must be from the amplifier IC. I wonder if changing amplifier IC solve this problem? Please help me regarding this.
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