摘要
根据国际建议OIMLR76中的试验要求，设计了一套衡器性能自动测量系统。该系统可以任意组合标准砝码进行50～3000kg各种衡器的型式评价试验，它通过控制器能够实现无冲击、无擦靠的自动加载和卸载功能，可以完成对50～3000kg被测衡器的示值误差、重复性、除皮、静态温度和湿热稳态等各项型式评价试验，解决了大型衡器难于通过人工方式进行型式评价试验的问题。实验结果表明该系统的相对不确定度不大于5×10^-6。
To meet the test requirements of recommendation OIML R76 about non-automatic weighing instruments, an automatic measurement system on weighing instruments is designed. The operators of the system can perform type evaluation tests of weighing instruments which maximum capacity are from 50 kg to 3000 kg by means of mass standards combined automatically at random. The system includes automatic loading and unloading function without impact and adhesion. Therefore type evaluation tests of weighing instruments with the maximum capacity from 50 kg to 3000 kg such as indication error test, repeatability test, tare test, static temperature test and damp heat test can be finished automatically by the system. The system can solve the problem that type evaluation test of weighing instruments with the maximum capacity above 50 kg is hardly performed by means of personnel. The experimental results show relative uncertainty of the system is not more than 5×10^-6.
出处
《计量学报》
CSCD
北大核心
2012年第5期419-422,共4页
Acta Metrologica Sinica
关键词
计量学
衡器
型式评价试验
重复性
静态温度
Metrology
Weighing instruments
Type evaluation tests
Repeatability
Static temperature
