Method and system for automatic calibration of pedal...

Details Method and system for automatic calibration of pedal... Method and system for automatic calibration of pedal...

2008-01-15

2010-12-14

Enad, Elvin G (Department: 2832)

Music

Instruments

Electrical musical tone generation

Reexamination Certificate

active

07851690

ABSTRACT:
A piano is equipped with an actuator that moves the piano pedal mechanism in a mariner that reproduces the pedaling effects of an original performance with high accuracy. The actuator comprises a solenoid, a permanent magnet, a velocity sense coil, and a Hall-effect sensor. The Hall-effect sensor provides an indication of the displacement of the solenoid plunger in accordance with an inverse-square law. Closed-loop feedback control is provided to effect a very true reproduction of pedaling effects. Automatic calibration allows for simple installation.

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