专利名称：Device for the ultrasonic detection of青春需要雕琢
foreign bodies prent on the exterior
surface of a glass, glass equipped with such
idlera device and glass intended for beingnotice是什么意思
equipped with an ultrasonic detection device 发明人：SAURER, ERIC
申请号：EP94111834.1
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申请日：19940729
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公开号：EP0638822A1
公开日：
昌平龙德广场
19950215beneath the glory
专利内容由知识产权出版社提供
专利附图：
摘要：Device for ultrasonic detection of foreign bodies prent on the outer surface of a glass, the said device being intended to be associated with a glass comprising at least a first plate having a first thickness, a cond plate having a cond thickness less than the said first thickness, the said plates being asmbled by a bonding layer, the said device comprising a transducer capable, via a transmitting/receiving face, of transmitting an incident ultrasonic signal having a wavelength lambda into the said plates, the thickness of the first plate being equal to k. lambda /2, where k is a whole number, the said transducer furthermore being capable of deriving a detection signal, characterid in that the said transducer includes a blade fixed to the said transmitting/receiving face, the said blade being intended to be fixed onto the said cond plate, and in that the said blade has a third thickness such that the sum of the cond and third thickness is substantially equal to k'. lambda /2, where k' is a cond whole number.
申请人：ASULAB S.A.
ubiquitous地址：Faubourg du Lac 6 CH-2501 Bienne CH
洒遍国籍：CH
代理机构：Patry, Didier Marcel Pierre
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