论文部分内容阅读
利用时空转换思想,以时间基准测量空间位移量,借鉴国际上先进的位移测量技术手段,设计直线式时栅传感器A/D转换电路。采用AD7298 BCPZ型12位A/D转换芯片与STM32F407VGT6型ARM处理器相结合,利用嵌入式操作系统Linux软件编程,使得系统具有更好的可靠性与实时性。实验结果表明:采用所设计的A/D转换电路,最小分辨时间为2.44 ns,能更好地实现传感器的高速、高分辨率采样,实现了直线式时栅传感器的误差修正与补偿。通过,A/D转换电路的设计,为高精度直线式时栅位移传感器的研制提供了技术支持。
Utilizing the idea of space-time conversion, measuring the amount of space displacement with reference to the time base, the A / D conversion circuit of the linear time-grating sensor is designed with reference to the advanced international advanced displacement measurement techniques. Using AD7298 BCPZ 12-bit A / D converter chip and STM32F407VGT6 type ARM processor, the use of embedded operating system Linux software programming, making the system has better reliability and real-time. The experimental results show that using the designed A / D converter circuit, the minimum resolution time is 2.44 ns, which can realize high-speed and high-resolution sampling of the sensor, and achieve the error correction and compensation of the linear time-grid sensor. Through the design of A / D conversion circuit, it provides technical support for the development of high-precision linear time-grating displacement sensor.