As a rule, Interferometers are used to test the figure in the polishing phase of optical component, it could provide
advance tutor suggestion for manufacturing. It is unable to get the whole wave-front interferogram usually because
phase-shift Interferometry is sensitive to environment vibration, so the exactly interference data of the optical surface
could not be obtained. Various spatial point on the tested optical component will be given by calculation method about
arithmetic average value of equal accuracy is provied. This paper describes the testing results of optical components in
size Φ1200mm, it is proved the method could eliminate the vibration effectively and get the standardization data.
Coal mine fires has become a very severe geologic disaster that affects the sustainable development of China's national
economy. They result in a reduction of the coal reserve, attribute to atmospheric pollution through the emission of
greenhouse related gases, cause land subsidence and negatively impact human health in nearby areas. Fire source
localization is an important direction in the research area of fire detection at present. For application researches of fire
source localization in fire nonage, a method of fire source localization and its algorithm are presented in the paper. The
method is applied to estimate the characterization of infrared image for fire source localization in condition of radiation
of fire source having a character of approximate spherical wave, and its convenience of fine orientation distinguishing
ability is also presented. The coherence of detection precision for fire source localization applied with the method is
similarity while detected in the closed or semi-closed space. Fine feasible and compatible of this detection method is
represented in the paper, and especially suited for fire source localization in the rectangle restricted space.
As a rule, Interferometers are used to test the Figure in the polishing phase of optical components. It could provide
advance tutor suggestion for manufacturing. Various spatial points on the testoptical components will be given by
interferogram analysis. Binary image is got from raw data. The edge of optical component is differentiated with a sobel
exactly. A coefficient constraint condition is incorporated into the least squares method for geometric parameters of
circles.The center coordinates and size of radius will be calculated by the method, and then the coordinate of the
interferogram could be erected exactly.
As the key for supplying safe and normal running of whole optical system, it is important to test and evaluate the quality
of optical components. The wavefront power spectral density (PSD) can give spatial frequency distribution of wavefront
aberration and specify optical components. Based on summarizing the existing PSD specification, one dimension radial
PSD is used for specifying the character of the spatial frequency distribution of wavefront aberration about the circular
optical surfaces is advanced. Its calculation of PSD for testing circular optical surface with interferometer test instrument
is explored in the paper.
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