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一、弹簧管历史和位移理论在蒸汽机发明以前,测压仪表还没有什么特殊意义,蒸汽机发明后,特别是蒸汽机车出现后,由于考虑到技术上的安全运行,迫切要求有一种便于使用、便于观察的测压仪表。1874年,法国人波登发明了弹簧管,并于次年正式制成功弹簧管压力表。有人说弹簧管在1845年就发明了,那是德国人辛芝(Schinz)由于加工错误,压扁一只弯管,从而发现压力与管端位移成比例。总之,弹簧管发明时,弹性力学正处于萌芽阶段,基础理论尚未确立,当时对弹性变形虽有各种解释,但由于推导假设前提不当,理论值与实测值的距离很大。近年来,各国对弹簧管的位移理论都进行了比较
First, the spring tube history and theory of displacement Before the invention of the steam engine, the pressure gauge has no special significance, after the invention of the steam engine, especially after the emergence of steam locomotive, due to technical safe operation, there is an urgent need for an easy to use, easy Observed manometer. In 1874, the French Bourdon invented the spring tube, and in the following year the official success of the spring tube pressure gauge. Some say the spring tube was invented in 1845, when German Schinz squashed a tube due to a machining error and found that the pressure was proportional to the tube end displacement. In short, when the spring tube was invented, the elasticity mechanics is in the embryonic stage. The basic theory has not yet been established. Although there are various explanations for the elastic deformation at the time, the theoretical and measured values are far apart due to the improper preconditions of the derivation. In recent years, all countries have compared the theory of spring tube displacement