Aiming at the shortcomings of the existing spring impactor calibration device,such as low measurement accuracy of key technical indicators and easy to produce reading errors,a digital measure-ment system for the spring impactor calibration device was designed.The system is based on Lab VIEW virtual instrument technology,including data acquisition terminal and host computer management soft-ware.Focus on the design and construction of angle acquisition hardware module and the preparation of angle acquisition and data processing software module.The data collection of impact swing angle and high accuracy measurement of impact energy are realized.The measurement accuracy can reach 0.OO1J and the measurement uncertainty can reach Urel=3x10-3(k=2).Through the system test and value com-parison test,it is verified that the digital measurement system has good practicability and reliability,so that the metrological performance and function of the calibration device can meet the needs of calibra-tion.It is of great significance to the transmission and traceability of impact energy.
spring impactorLabVIEWmechanical metrologymeasurement systemimpact energy
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