As noted above, there are many ways to measure vibrations depending on your application. Microphones can work in some cases, piezo electric pickups can work also. Ultrasonic transducers, microwave, and optical transducers will also measure vibrations. So without know what type of vibration(s) you are trying to measure a specific answer is very difficult.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV.
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