作者设计的WU—容量计是一种新颖的容量分析仪器。已经中国专利局批准取得专利权,专利批准号为85100454。它是供测定化学反应中液体或气体的体积变化值使用。特别适用于微量分析,可检测含量ppm-99％的组分,相对误差0.1—0.4％。测定一份试样只需20—50秒。其作用类似于国内外广泛使用的滴定管,但又是滴定管的更新产品。 WU—容量计是根据气体在同温同压下体积不变原理,将滴定管的液柱读数转换为气柱读数。即测定在滴定过程中进入刻度管内空气的体积读取滴出溶液的体积。如图所示:在装满滴定剂的滴液瓶 The author designed WU-capacity meter is a novel capacity analysis instrument. China Patent Office has obtained the patent approval, patent approval number is 85100454. It is used to measure the chemical reaction of liquid or gas volume change value. Particularly suitable for trace analysis, can detect ppm-99% of the components, the relative error of 0.1-0.4%. It takes only 20-50 seconds to measure a sample. Its role is similar to the burette widely used at home and abroad, but it is an updated product of burette. WU-volume meter is based on the same volume of gas at the same temperature and volume under the same principle, the buret column of liquid column readings converted to air column readings. That is measured during the titration into the graduated tube volume of air volume read drip solution. As shown: Dropping bottle filled with titrant