Enhanced laser shutter using a hard disk drive rotary voice-coil actuator.

@article{Scholten2007EnhancedLS,
  title={Enhanced laser shutter using a hard disk drive rotary voice-coil actuator.},
  author={R. Scholten},
  journal={The Review of scientific instruments},
  year={2007},
  volume={78 2},
  pages={
          026101
        }
}
  • R. Scholten
  • Published 2007
  • Medicine
  • The Review of scientific instruments
Rotary voice-coil motors from computer hard disk drives make excellent mechanical shutters for light beams. However, the complexity of the necessary electronic driving circuit can hinder their application. A new design is presented here, using a single integrated circuit originally intended for controlling dc motors. A digital input signal switches a unipolar power supply bidirectionally through the voice coil. Short high-current pulses are generated on the transitions to ensure rapid shutter… Expand
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