Re: VIBRATOR PROBLEM
Hello,
you mean a fan regulator operated from AC mains power? But then a transformer must be used to decrease the voltage?
The first thing you should know is a rough estimation of possible operating frequency. My basic idea was, the instrument should be operated at it's resonance frequeny, but that isn't necessarily, it can work also at other frequencies with lower amplitude. For evaluation, i would be best to have a frequency variable generator. I have no idea if you can get one.
If the instrument is designed to operate at mains frequency of 50 or 60 Hz with no variable frequency option, this would be most simple. For a first test, you could connect a door bell transformer with 6 or 8 V AC output. If the device has no built-in permanent magnet, it would operate at the doubled mains frequency then, 100 or 120 Hz. If this frequency is too high, a half-wave rectifier (a single diode with sufficient current capacity) could be used to operate it at mains fundamental frequency.
The other point is´variable amplitude. The way you describe the application, low vibration amplitude respectively deflection could be necessary, also a calibrated adjust. A fan regulator may be somwhat too rough. But this can be decided if the operating frequency and the needed voltage range has been evaluated.
Regards,
Frank