Abstract: With differential calculus and principles of precision analysis a mathematics formula on spring being out of shape error and relative factors error is derived, and given a simple method of dynamometric spring precision design.

• 文摘:应用全微分方法及精度分析原理，推导出弹簧变形误差与各相关因素误差之间的数学表达式，提供了一种测力弹簧精度设计的简便方法。