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一、概述 LPH—2J型弹簧力平衡式压力计(绝压),是在LPH—2型弹簧力平衡式压力计的基础上经过改进而研制的一种专门用来测量绝对压力的无汞仪器。在航空工厂和研究所的试验室里,可以用它代替标准的闭口水银压力计来校验气压高度表和高度传感器等。这样,连同LPH—2型弹簧力平衡式压力计,就可以全部取代航空工厂试验室内用以校验飞机上压力驱动仪表的标准水银压力计,做到压力测试无汞化。从而消除水银蒸汽对空气的污染。同时它
I. Overview LPH-2J-type spring force balance pressure gauge (absolute pressure), is based on the LPH-2-type spring force balance pressure gauge developed on the basis of an improved specifically designed to measure absolute pressure mercury-free instruments . In the aerospace factories and research laboratories, it can be used instead of the standard closed mercury gauges to calibrate barometric altimeter and height sensor. In this way, together with the LPH-2 spring-force balance gauge, all of the standard mercury gauges used in pressure test instruments on the aircraft in the aerospace factory laboratories can be completely replaced for mercury-free pressure testing. Thus eliminating the mercury vapor on the air pollution. At the same time it