Polarimeter Calibrator

small image & large image--Back view of calibrator, showing hotplate, motor, and electronics.
small image & large image--Back view of calibrator, showing back of THz material and hole for hotplate.
small image & large image--Top view of calibrator, showing chopping blade and infrared sensor to monitor speed of chopping blade.
small image & large image--Front view of calibrator, showing THz absorbing material and hole in front panel for hotplate.
small image & large image--Electronics of calibrator.
small image & large image--Close-up of hotplate hole, showing half hotplate and half chopping blade.