本文以英国奥特林公司产品为例,叙述精密称量技术近年来的发展。 一、等臂天平:千百年来,等臂梁一直用于质量的精密称量。至今,等臂天平仍然在大多数国家用来测定标准质量。方程式:tanθ/m=L/M·h表达了横梁偏斜角度θ、质量差m和设计参数之间的关系。式中,L—臂长,M—横梁的质量,h—横梁重心低于中心支点的距离。 In this paper, the British Ao Te Lin company products, for example, describes the precision weighing technology in recent years. First, the other arm balance: Thousands of years, so arm beam has been used for the quality of precision weighing. To date, isobaric balances are still used in most countries to determine the standard quality. The equation: tanθ / m = L / M · h expresses the relationship between beam skew angle θ, mass difference m and design parameters. Where, L-arm length, M-beam mass, h-beam center of gravity below the center of the distance.