Photoelectric autocollimator-analyzer of the angular-displacement spectrum of an object

Голубовский Ю.М., Захаренков В.Ф., Иванов Д.В., Писарев В.Н. Фотоэлектрический автоколлиматор - анализатор спектра угловых перемещений объекта // Оптический журнал. 2008. Т. 75. № 12. С. 6–10.

Golubovskiy Yu.M., Zakharenkov V.F., Ivanov D.V., Pisarev V.N. Photoelectric autocollimator-analyzer of the angular-displacement spectrum of an object [in Russian] // Opticheskii Zhurnal. 2008. V. 75. № 12. P. 6–10.

Yu. M. Golubovskiĭ, V. F. Zakharenkov, D. V. Ivanov, and V. N. Pisarev, "Photoelectric autocollimator-analyzer of the angular-displacement spectrum of an object," Journal of Optical Technology. 75 (12), 764-767 (2008). https://doi.org/10.1364/JOT.75.000764

This paper presents the results of studies of a photoelectric autocollimator with a detector based on a linear CCD array and a computer as a spectrum analyzer. The threshold sensitivity of the device to the image displacement depends on the SNR. When the SNR equals 250, the threshold sensitivity is 0.134μm, which corresponds to a threshold sensitivity to rotation of the test mirror by no more than 0.007″. The device makes it possible to determine the power spectrum of the rotational-velocity fluctuations of rotating mirrors, as well as the spectrum of the radiation fluctuations of distant sources.