论文部分内容阅读
一、检测系统的硬件部分与工作原理系统由光电检测装置、采样计数电路和单片机电路等组成。框图见图1。 (一)光电CCD传感器及驱动板我们采用TCD102D光电传感器作为检测元件,动板上经过缓冲器输出CCD的光电信号、计数脉冲SP、转换脉冲SH等信号.电路框图如图3所示。 (二)光电检测装置该器件是CMOS电路,22脚玻壳封装,有效光电元素2048个,每个像素的尺寸为14μm×14μm,转换时间为10ms,计数脉冲SP的频率为1MHz,其时序关系见图2。根据 TCD102D的要求,配置了一块驱动电路板,使CCD的曝光周期为10ms,大于数据时间,并在驱
First, the detection system hardware components and working principle The system consists of photoelectric detection device, sampling and counting circuit and microcontroller circuit. Block diagram shown in Figure 1. (A) Photoelectric CCD sensor and driver board We use TCD102D photoelectric sensor as the detection element, moving the board through the buffer output CCD optical signal, counting pulse SP, conversion pulse SH and other signals. (B) of the photoelectric detection device The device is a CMOS circuit, 22 foot glass bulb package, the effective optical element 2048, the size of each pixel 14μm × 14μm, the conversion time is 10ms, the frequency of the counting pulse SP 1MHz, the timing relationship See Figure 2. According to the requirements of TCD102D, configure a drive circuit board, the CCD exposure cycle of 10ms, greater than the data time, and in the drive