TANG Mei-ling, LIU Zhen-jiang, ZHANG Xiao-hui . Design of multichannel digital shutter velocity testers[J]. Editorial Office of Optics and Precision Engineering, 2001,(2): 159-161
TANG Mei-ling, LIU Zhen-jiang, ZHANG Xiao-hui . Design of multichannel digital shutter velocity testers[J]. Editorial Office of Optics and Precision Engineering, 2001,(2): 159-161DOI:
The multichannel digital shutter velocity tester is mainly used in measuring the exposure time of a camera curtain shutter. Photoelectric receivers are placed at different points in the focal plane
by which the optical signals are converted to electric signals. The test system collects the electric signals through high speed collection channels by the preset order with DMA mode. After data processing
exposure time acquired by the method given in this paper is analysed and measured. The test system is not only accurate
but also reliable. The test results can be visualy displayed on the screen.