Research on 2000 kg Mechanical Balance with the Sensitivity of 1.3 g

Wang Jian, Cai Changqing, Zhang Yue, Ren Xiaoping, Zhong Ruilin, Hu Manhong, Wang Xiang

Abstract

The calibration requirement of the whole more than 500 kg weight is increasing year by year in China, expecially, the class F 1 weight and the weight from the huge deadweight force standard machine and huge torque standard machine. The advantages of measurement more than 500 kg on a new 2000 kg mechanical balance are introduced in the paper. In order to obtain high measurement uncertainty, four vertical forces of two sides of beam is measured and used as reference for adjustment of beam position. Laser displacement sensors to be used in the indication system are more effective for decreasing reading error caused by human vision. The counter weight selecting system is developed for getting any combinations of weights in a limited space. The sensitivity of the new mechanical balance for 2000 kg is better than 1.3 g.

Keywords

sensitivity, mechanical balance, laser displacement sensor, repeatability

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IMEKO-TC3-2017-058.pdf

DOI

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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