本文谈了水准器泡的结构,叙述了水准器在长度计量仪器中的应用,分析了仪器零值误差的来源,指出在使用仪器中应注意和消除零值误差。一、水准器泡的结构及其在长度计量仪器中的应用水准器泡从外形上区分可分为管水准器泡和园水准器泡,管水准器泡内壁的纵断面磨成一定半径的 This article talks about the structure of level bubble, describes the application of level in length measuring instrument, analyzes the source of zero error of instrument, and points out that zero error should be paid attention to and eliminated in using instrument. First, the level of the bubble structure and its application in the length of the measuring instrument Level bubble from the appearance of the distinction can be divided into tube level and garden level bubble,