Sensor with ultrasonic transducer.,申请号EP19930116028-传众专利搜索

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发明名称	Sensor with ultrasonic transducer.
摘要	<p>Ein Messwertgeber besteht aus zwei auf einer gemeinsamen Achse (11) eines Messrohres (1) angeordneten, gegenüberliegenden Ultraschallwandlern (12;13), die mit einem Plättchen (14;15) aus Piezokeramik zum Abstrahlen und Empfang von Ultraschallwellen ausgerüstet sind. Durch das Messrohr (1) strömt ein Medium (6) und verändert die Laufzeit der das Messrohr (1) in beiden Richtungen durcheilenden Wellenzüge des Ultraschalls. Die Laufzeiten dienen als Mass des Durchflusses des Mediums (6). Temperaturabhängige Fehler der Durchflussmessung können praktisch eliminiert werden, indem die Fläche der kleineren bzw. zweiten Elektrode (26) in einem vorbestimmten Verhältnis zur Querschnittfläche des Messrohrs (1) gehalten ist und die Berandungen der beiden Flächen ähnlich sind. <IMAGE></p>
申请公布号	EP0606536(A1)	申请公布日期	1994.07.20
申请号	EP19930116028	申请日期	1993.10.05
申请人	LANDIS & GYR BUSINESS SUPPORT AG	发明人	ADAM, NORBERT;HAUENSTEIN, GUENTHER
分类号	G01F1/66;(IPC1-7):G01F1/66	主分类号	G01F1/66
代理机构		代理人
主权项
地址

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