汞式血压计是目前医院广泛使用的，它的计量准确与否，直接影响到人体的健康判断，因此被国家列入强制检定的工作计量器具之一。该仪器虽然结构简单，易于操作，但也因使用不当而往往发生一些故障。汞式血压计在使用过程中常出现汞溢出、不回零位、灵敏度差、汞柱断隔与翻... Mercury sphygmomanometers are widely used in hospitals at present. Whether or not their measurement is accurate affects the judgment of human health directly, and therefore it is listed as one of the mandatory measurement and measurement instruments. Although the instrument is simple in structure and easy to operate, it often fails due to improper use. Mercury sphygmomanometer often overflows during use, does not return to zero, poor sensitivity, mercury column separation and turnover...