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- W2369991559 abstract "A new kind of Charge Coupled Device(CCD) laser displacement sensor for high-speed measurement was introduced to measure the displacement or high-speed vibration of moving object by the mode of high-speed and real-time.The sensor system is composed of optical system,linear CCD with 7 500 pixels,high-speed Analog-to-Digital Converter(ADC) with convertion rates up to 40 MHz,high-speed First-In,First-Out(FIFO) memories with clocked reading and writing controls,comparator selecting circuit and Digital Signal Processor(DSP).An adaptive control method was adopted to control the light intensity of laser by modulating separately the oscillation frequency and output current of the laser,which made the system suit various specific object or situation.Additionally,the storage data from high-speed A/D converter and the read data from high-speed FIFO could be controlled by a comparator selecting circuit,then only useful pixel signals from CCD were memorized by FIFO.Therefore,the burden of DSP was alleviated,and both acquisition and process for CCD sensor signal could be carried out simultaneously. The experimetnal results show that this system can be used in the field of high-speed measurements of displacement and vibration and can obtain the velocity of data acquisition up to 40 M,minimum sampling interval of 0.1 ms,displacement resolution of 0.01 mm and the repetition of ±0.01 mm." @default.
- W2369991559 created "2016-06-24" @default.
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- W2369991559 date "2008-01-01" @default.
- W2369991559 modified "2023-10-03" @default.
- W2369991559 title "Development of high-speed CCD laser displacement sensor" @default.
- W2369991559 hasPublicationYear "2008" @default.
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