差压型气密检测仪是像密封腔体内部充入设定压力的压缩空气，通过测量工件内部压力或流量变化从而检测出是否有泄漏存在的原理。
气密性检漏仪是密封腔体内充入设定压力的压缩空气，通过测量工件内部压力或流量变化，从而检测出工件是否有漏孔存在。
仪器装载了高感度、高耐压的压力变速器与密封性能高、动作可靠的专用气动阀，组成基本空气检测回路。
The airtight leak detector is the compressed air filled with the set pressure in the sealing cavity. by measuring the change of the internal pressure or flow rate of the workpiece, the presence of the leak hole in the workpiece is detected.
The instrument is equipped with a high sensitivity, high pressure pressure transmission and a special pneumatic valve with high sealing performance and reliable operation
