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本发明公开了基于光电传感器的金属杨氏模量系统,包括单片机、信号调理电路及光电转换电路,单片机连接信号调理电路,信号调理电路连接光电转换电路;信号调理电路内设置有A/D转换电路、I-V转换电路及滤波电路,光电转换电路连接滤波电路,滤波电路连接I-V转换电路,I-V转换电路连接A/D转换电路,A/D转换电路连接单片机;光电转换电路包括光电传感器及放大电路,光电传感器连接放大电路,放大电路连接滤波电路;利用光电转换的方式将在进行金属杨氏模量测试时的位移变化量转换为相应电流信号的变化量,而后通过单片机进行处理并实现实时自动测量、数据处理和显示,从而达到杨氏模量测量的自动化和高精度化。
The invention discloses a metal-based Young’s modulus system based on photoelectric sensor, which comprises a single-chip microcomputer, a signal conditioning circuit and a photoelectric conversion circuit, wherein the single-chip is connected with a signal conditioning circuit and the signal conditioning circuit is connected with a photoelectric conversion circuit; Circuit, IV conversion circuit and filter circuit, the photoelectric conversion circuit is connected with the filter circuit, the filter circuit is connected with the IV conversion circuit, the IV conversion circuit is connected with the A / D conversion circuit, the A / D conversion circuit is connected with the singlechip; the photoelectric conversion circuit comprises a photoelectric sensor and an amplification circuit , The photoelectric sensor is connected with the amplifying circuit and the amplifying circuit is connected with the filter circuit; the change amount of the displacement during the test of the metal Young’s modulus is converted into the change amount of the corresponding current signal by means of photoelectric conversion, and then processed by the single chip microcomputer and real-time automatic Measurement, data processing and display, so as to achieve the Young’s modulus measurement automation and precision.