Electronics for hard drive shutter SD002
Electronic driver for a very fast (sub-microsecond) mechanical shutter for laser beams, using a voice coil actuator from a hard disc drive.† The actual mechanical shutter is described in the paper Enhanced laser shutter using a hard disk drive voice-coil actuator, Rev. Sci. Instrum. 78 026101 (2007).
The shutter is easily constructed from a hard drive head actuator, loudspeaker voice coil, or electromechanical relay actuator − but the electronics can be a nuisance. MOGLabs offer an advanced version of the circuit described in the paper above, for use with any standard plugpack power supply (DC 12 to 48 V). It offers both manual (toggle switch) and TTL control, and will drive a forward or reverse current, up to 6 amps.
SD002 fully assembled and tested US$450
†Please note, we do not offer the mechanical shutter, only the electronic driver. Substantial information regarding mechanical shutters is available here.