Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Zhong Sheng Zhai"'
Publikováno v:
Advanced Materials Research. 1037:156-160
This paper proposes a capacitance resistance measurement method based on time constant. Using the charging and discharging characteristics of the resistance and capacitance measures the value of the resistance and capacitance through a semi potential
Publikováno v:
Key Engineering Materials. :1021-1026
In the laser interferometer system based on the four quadrants photoelectric, phase difference between two quadrants photoelectric is the way of identifying the fringe width and rotating angle, in order to achieving the measurement of two-dimensional
Publikováno v:
Applied Mechanics and Materials. :50-53
A diffraction limited circularly symmetric optical imaging system with “0,π” phase pupil mask was studied, which extended depth of field. The optimal radiuses of the mask in the different amount of defocus are calculated, which in a certain cont
Publikováno v:
Advanced Materials Research. :676-680
In order to implement the measurement of two-dimensional small angles, a method of modulating optical-path differences through a wedge is put forward, based on Michelson interference principle. By promoting the wedge with a voice coil motor, optical