Hello Forum,
I'm working on a project that requires controling the frequency and amplitude of multiple string vibrators and the easiest way for me to do this is using audio signals controlled with a MAX/MSP (programing interface) patch.
I bought this device http://www.pasco.com/prodCatalog/WA/WA-9857_string-vibrator/, it consists of a copper coil, a rare earth magnet and an aluminium reed, I already made my home imitation (foto). Since this device is made to work with a 5V AC power adapter at 60hz I have the following problem:
- If I use an amplified audio signal the coil overheats.
- If I use a sine wave generator I'm unable to control the signal's frequency and amplitude from my computer, not to mention that I would need multiple generators to control each vibrator.
I've also got http://www.pasco.com/prodCatalog/WA/WA-9854_economy-wave-driver/, which is basically a loudspeaker with no cone and a reed to insert the string. This one does not overheat but it sounds loud and my project requires no sound or a soft sound. This would be my best solution but I need a way to get rid of the sound.
I am a musician and really don't know much about electricity or amplification, I would love to hire someone to help me build a device that meets my requirements or I wonder if any of you has any ideas or advice for me.
Thank you very much in advance
I'm working on a project that requires controling the frequency and amplitude of multiple string vibrators and the easiest way for me to do this is using audio signals controlled with a MAX/MSP (programing interface) patch.
I bought this device http://www.pasco.com/prodCatalog/WA/WA-9857_string-vibrator/, it consists of a copper coil, a rare earth magnet and an aluminium reed, I already made my home imitation (foto). Since this device is made to work with a 5V AC power adapter at 60hz I have the following problem:
- If I use an amplified audio signal the coil overheats.
- If I use a sine wave generator I'm unable to control the signal's frequency and amplitude from my computer, not to mention that I would need multiple generators to control each vibrator.
I've also got http://www.pasco.com/prodCatalog/WA/WA-9854_economy-wave-driver/, which is basically a loudspeaker with no cone and a reed to insert the string. This one does not overheat but it sounds loud and my project requires no sound or a soft sound. This would be my best solution but I need a way to get rid of the sound.
I am a musician and really don't know much about electricity or amplification, I would love to hire someone to help me build a device that meets my requirements or I wonder if any of you has any ideas or advice for me.
Thank you very much in advance