激光测振仪校准装置的设计和应用

发布时间：2018-09-12 08:50

【摘要】：针对激光测振仪校准中存在自动化程度低的问题,设计激光测振仪的校准装置。介绍装置的硬件、软件设计,进行校准实验验证,测得实验数据并计算校准装置的不确定度。该装置通过所测量的实际值与理论值比较来校准激光测振仪。装置包含激励源部分、测量仪器部分、通信仪器部分和PC机,其中激励源提供标准振动信号和标准频率信号,测量仪器测得输出电压和波形,以GPIB接口作为通信仪器将PC机与激励源和测量仪器相连,PC机以虚拟仪器软件为开发平台,控制输入标准频率信号,采集和显示输出电压数据和波形结果,实现激光测振仪的自动化校准。实验证明装置性能良好,数据真实可靠,误差低于1%,符合规程要求。
[Abstract]:Aiming at the problem of low automation in the calibration of laser vibration measuring instrument, the calibration device of laser vibration measuring instrument is designed. This paper introduces the hardware and software design of the device, carries on the calibration experiment verification, measures the experimental data and calculates the uncertainty of the calibration device. The device calibrates the laser vibration measuring instrument by comparing the measured actual value with the theoretical value. The device comprises an excitation source section, a measuring instrument section, a communication instrument section and a PC machine, wherein the excitation source provides a standard vibration signal and a standard frequency signal, and the instrument measures the output voltage and waveform. The GPIB interface is used as the communication instrument to connect the PC computer with the excitation source and the measuring instrument. The PC computer is developed on the platform of virtual instrument software to control the input standard frequency signal and to collect and display the output voltage data and waveform results. The automatic calibration of laser vibration measuring instrument is realized. The experiment proves that the device has good performance, the data is true and reliable, and the error is less than 1.
【作者单位】：中国计量大学计量测试工程学院;苏州赛宝校准技术服务有限公司;
【分类号】：TH744.5

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