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目前,国内外微机械材料力学性能测量的方法很多,各具优缺点,本文提出一种基于DSP的微机械材料力学性能测试的新方法及测量装置,它采用直流伺服电机进行微定位,压电陶瓷和直线电机作为加载方式,结合数字信号处理(DSP)技术和逻辑控制(FPGA)技术以及高精度的电容式数字位移传感器和力传感器。研究结果表明,本装置能高速、高精度地采集到微机械材料力学性能参数的特征,从而为微机械材料力学性能测试提供了一种新的实用的途径。
At present, there are many methods to measure the mechanical properties of micromechanical materials at home and abroad, each has its own advantages and disadvantages. A new method and measuring device based on DSP for mechanical properties testing of micromechanical materials are proposed. Ceramic and linear motors are used as a load, combining digital signal processing (DSP) technology and logic control (FPGA) technology with high-precision capacitive digital displacement and force sensors. The results show that the device can acquire the characteristics of the mechanical performance parameters of micromechanical materials with high speed and accuracy, and thus provide a new and practical way for the mechanical properties of micromechanical materials.