机械装置性能综合测试硬件设计 —学士学位论文.doc

机械装置综合测试下位机硬件设计 摘 要 选用光电编码器、直线位移、压力、加速度传感器分别检测系统执行机构的曲柄转角位移、执行构件直线运动位移、刀具切削阻力、滑枕的振动加速度信号。A/D转换的满量程要求，并将传感器输出的模拟信号转换为计算机能够识别和处理的数字信号 关 键 词： COMPREHENSIVE TESTING MECHANICAL DEVICE HARDWARE DESIGN ABSTRACT In this design, selection of photoelectric encoder, linear displacement, stress, acceleration sensor were used to detect the crank angle displacement execution mechanism, system implementation of vibration acceleration signal component linear motion displacement, cutting resistance, ram. While the mechanical device is the main purpose of hardware design is to each sensor output signal line filter, amplifier, impedance matching to meet the full range of requirements of A/D conversion, and converts the analog signal to digital signal output of the sensor of the computer can recognize and process (sensor output signal is digital signal and analog signals, such as signal output of the accelerometer is digital signal, the signal is only conditioning can be directly input to the I/O port of the SCM, and the signal of other photoelectric encoder, linear displacement, the pressure sensor output analog signal, not only need the signal conditioning, also need to A/D conversion, the conditioning simulation signal conditioning circuit is converted into digital signal, and then input to the microcontroller for processing), design of communication circuit hardware design adopts RS-232 communication interface to realize the communication between host and client communication and data.在该设计中下位机硬件设计站有重要的地位，但是机械装置与单片机、上位机沟通交流的桥梁。硬件系统的设计是否合理有效对整个系统的正常工作有着决定性作用。 In the design the hardware design station has an important position, the bridge but mechanical devices and microcontroller, computer communication. The design of hardware system is reasonable and effective work of the whole system has decisive effect. KEY WORDS：A mechanical device, single chip microcomputer, hardware design, sensor 目 录 前言 1 第一章 总体方案的设计 4 §1.1 测试系统设计的一般过程 4 §1.2 附录 33 前 言 测试技术属于信息科学范畴，是信息技术三大支柱之一，测试技术是用来检测和处理