Ultrasonic detection system

Details Ultrasonic detection system Ultrasonic detection system

1990-10-09

1992-06-16

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

73570, 73629, 73632, 367908, 310334, G01F 2328, G01J 172, B06B 100

Patent

active

051216280

ABSTRACT:
An ultrasonic detection system having a flat faced radiator for providing a narrow beam of ultrasonic energy with minimal dispersion. The system includes an ultrasonic transmitter and receiver unit coupled to an ultrasonic transducer for producing ultrasonic energy. The system also includes a planar radiator and a coupling device between the ultrasonic transducer and the planar radiator. An encapsulating member surrounds the ultrasonic transducer for damping ultrasonic energy transmitted by the transducer in all but one direction. The encapsulating member is also coupled to the planar radiator in areas of the planar radiator that are not coupled to the coupling means. The encapsulating member has an area of increased density immediately adjacent to the planar radiator for damping the ultrasonic energy in areas of the planar radiator that are not directly coupled to the coupling means. This results in a ultrasonic detection system that radiates a relatively narrow beam of ultrasonic energy and in which the encapsulating member is relatively decoupled from the ultrasonic energy. The flat radiating face makes the ultrasonic detection system ideally suited for applications such as level detection and particularly where the radiator must be exposed to sterilizing procedures.

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patent: 4594897 (1986-06-01), Bantz
patent: 4686409 (1987-08-01), Kaarmann et al.
patent: 4984449 (1991-01-01), Caldwell et al.

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