新一代超声波密封泄漏检测仪  

New Generation of Ultrasonic Wave Tester for Sealing Leakage

出　　处：《汽车零部件》2012年第8期45-45,共1页Automobile Parts

摘　　要：NVH是指Noise（噪声），Vibration（振动）和Harshness（声振粗糙度），由于以上三者在汽车等机械振动中是同时出现且密不可分，因此常把它们放在一起进行研究。The auto leakage tester can convert these ultrasonic wave signals to sound frequency signals by using a unique outer difference method. Let users hear these voices through earphone, and see intensity indication from the display screen of the device and estimate sizes of leakages. The advantages of using the ultrasonic technology are just easy to understand and more convenient.

关 键 词：泄漏检测仪 超声波 密封 机械振动 NVH 粗糙度 不可分 噪声 

分 类 号：TH878.2[机械工程—仪器科学与技术]