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发明名称
超音波手握式冷冻剂泄漏检测器
摘要
检测空气中有卤素冷冻剂存在的手握式装置,其中,一对超音波转换器在测量探针内彼此隔离,而试验空气则利用风扇连续抽过转换器之间。一转换器是以一定超音波频率导通,另一转换器则耦合至整流器或检相器,以提供信号,做为该另一转换器所接受和反射的辐射之函数。参考信号位准是由选择性取样和电子储存测量信号所建立,使参考位准可自动或手动更新,以反应周围条件的变化。当测量信号偏离周围参考位准超出预定临限时,即作动听见/视觉警报。
申请公布号
TW139262
申请公布日期
1990.08.01
申请号
TW078211460
申请日期
1988.12.08
申请人
肯特摩尔公司
发明人
拜伦当汉;唐普拉;葛瑞慕雷
分类号
G01N29/12
主分类号
G01N29/12
代理机构
代理人
陈嗣庆 台北巿民权东路三段一四四号一五二六室
主权项
地址
美国
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