基于MSP430单片机的PSD信号处理电路设计
Design of PSD Signal Processing Circuit Based on the MSP430 Series Microcontroller
位置敏感探测器PSD(Position Sensitive Detector)是一种非接触高精度动态位移检测元件,可以方便的检测高度距离等等。介绍了一维二维位置敏感探测器PSD的基本原理和使用方法，以及影响测量结果精度和引起系统噪声误差的器件主要性能参数。针对杂散光和暗电流等等噪声因素，依靠MSP430系列单片机强大的A/D转换和高精度计算实时处理信号，搭建检测系统，通过附加干涉滤光片和双PSD差分电路设计，从硬件和软件对PSD系统的输出信号进行处理和运算，得到精度达98.9%的系统。
his paper provides PSD (Position Sensitive Detector)is a kind of accurate sensor comprised of a monolithic detector with no discrete elements and provide continuous position data by making use of the surface resistance of the photodiode. PSD offers advantages such as high position resolution, high-speed response and reliability. This paper has introduced the basic principle of one-dimensional and two-dimensional PSD and the main parameter which can influence the detecting precision. To reduce the influence of miscellaneous background light and dark current, this paper design a double-PSD detect system depend on the A/D module of the MSP430 series micro-controller and through the simulating test, obtains a consistent result with the theoretic calculation. The data shows the precision is higher reach to 98.9 percent.
杨屾、赖康生
光电子技术电子电路微电子学、集成电路
MSP430F149单片机位置敏感探测器(PSD)测高测距性能分析抗干扰补偿
MSP430F149PSDheight and distance measurefunction analysisanti-interference compensate
杨屾,赖康生.基于MSP430单片机的PSD信号处理电路设计[EB/OL].(2010-05-13)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/201005-185.点此复制
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