Performance Test of the Fast Scanning Photographic Device of A Multi-Waveband Solar Spectragraph

This paper reports on the installation,abjustmcnt and performance test of the 45°mirror revolving stage with controllable scanning step lengths,special-purpose camera which can produce different frames,automation system controlled by a microcomputer and telescopic electrical control system developed for a 40-cm solar telescope and a multi-wayeband spectragraph in order to realize the fast scanning and automatic photograph of the solar ixnage at l0 wave bands.The test results show that(1) the restoration accuracy of the stage is 0.00049°,the step length accuracy is 0.0003°,and the wobble angle is 1";(2) the open-close time of the cajuera shutter is less than 0.025 seconds,the sizes of frames are 49×20mm,24×20mm and 3×20mm,respectively,,the velocities for reeling the film in are 0.18m/s,0.75m/s,and 1.5m/s respectively,and the amplitude of vibration of the magazine is less than lμm when the camera is put into operation.