Physics – Optics
Scientific paper
Jun 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pshao..21...65w&link_type=abstract
Publ. Shaanxi Astron. Obs., Vol. 21, No. 1, p. 65 - 73
Physics
Optics
Stellar Interferometers: Tests, Stellar Interferometers: Adaptive Optics
Scientific paper
A prototype stellar interferometer has been developed by CSAO and NAIRC and the fringes of artificial light with a bandwidth of 500 Å were observed in May 1966. As one of the key parts of the interferometer, each of the two star track systems consists of a quadrant detector, a piezoelectrically controlled tilt mirror and an adaptive wavefront tilt correction servo. A detailed description for the servo is presented here mainly including the photon counting circuitry and the software used on a 8098 single chip computer and a PC 386 computer. The servo was tested in spring 1996 and a series of experiments were performed to check the photomultiplier/pulse detection system's linearity and the characteristic curves of all the photomultipliers used. It proved the number of counts received was correct.
Li Zaixiong
Wang Zhengming
Xu Linsheng
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