一、引言重复性是衡量大质量比较仪性能的一个重要技术指标,影响比较仪重复性的因素有比较仪本身、加载砝码的时间间隔及偏载等,除这些因素外,重复性与起吊设备加载砝码的速度有密切关系,速度大小很大程度上影响比较仪测量结果的准确性。这一点对于大质量比较仪来说更为明显,同一台大质量比较仪在相同测试条件下使用电葫芦起吊设备的快慢速挡加载同一大质量砝码时,冲击对大质量比较仪重复性的 I. INTRODUCTION Repeatability is an important technical indicator to measure the performance of a mass comparator. The factors that influence the repeatability of the comparator are the comparator itself, the time interval of loading weights and partial load, etc. In addition to these factors, repeatability and lifting The speed at which the device is loaded with weights is closely related, and the magnitude of the speed greatly affects the accuracy of the comparator measurements. This is more obvious for the mass comparator, the same large mass comparator under the same test conditions using the electric hoist lifting gear fast and slow gear loaded the same mass mass, the impact on the mass comparator repeatability