Patent DE4328792C1 successfully refreshed from Google Patents.
DE4328792C1
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DE
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Detector device for detecting liquid levels
Assignee: Siemens AG
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Filing: 1993-08-26
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Granted: 1994-12-08
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Expires: 2013-08-26
Abstract
Abstract Detector device for detecting liquid levels, having an ultrasonic transducer (10) used as a transmitter/receiver transducer and a sound reflector reflecting back the sound energy transmitted to it by the ultrasonic transducer (10), in which the ultrasonic transducer (10) is applied to a carrier substrate (1) in multiple layers having a piezoelectric ultrasonic transducer layer (3) included between impedence matching layers (2, 4). <IMAGE>
Inventors
- 👤 Hans Prof Dr Meixner
- 👤 Dieter Dipl Phys Stein
- 👤 Dietmar Dr Hohm
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 04:38
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/02; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; G01F23/2965; G01F23/2968
Claims Analysis
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References Cited (Backward Citations)
DE2911216A1
Cited
DE3149909A1
Cited
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