Study on the time-grating sensor method of the static light field type based on timing-driven
【出 处】：
【作 者】：
Min
FU
Xing-hong
ZHANG
Engineering
Research
Center
of
Mechanical
Testing
Technology
and
Equipment
Ministy
of
Education
Chongqing
Key
Laboratory
of
Time-Grating
Sensing
and
Advanced
【摘 要】A uniform scan coordinate system by using photosensitive element of timing driven is proposed to con-vert the displacement detection of the object into measured time difference. According to the conversion principleof relative motion coordinate systems of time grating, if the photosensitive element of linear CCD is regarded as auniform scanning coordinate system and the spatial side by side and timing of mutually staggered on the two linearCCD is regarded as a stationary coordinate system, size and direction of the relative displacement of the objectwould be made by multiplying time difference variation and scanning speed after the time difference variation ofthe output electric signal on the different CCD for the same object are measured. With the calibration of the Ren-ishaw laser interferometer for the developed linear CCD time grating sensor, the measurement errors could be con-trolled within ± 2 μm after error correction is made for the effective measurement range of 600.05 mm. This reali-zes the idea of time measurement space in the field of optical.
相关热词搜索： DISPLACEMENT measurement Time grating DISPLACEMENT sensor CCD DISPLACEMENT sensor Timing-driven
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