Ultrasonic transducer
First Claim
1. An ultrasonic transducer for use in an ultrasonic flow meter, comprising:
- a transducer housing having an ultrasound window and a housing tube,a transducer element for sending or receiving ultrasonic waves located in the transducer housing,a first relatively weak mechanical coupling system having at least one weakly coupled mechanical resonator or two weakly coupled mechanical resonators, anda second weak mechanical coupling system.
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Accused Products
Abstract
An ultrasonic transducer as an important part of an ultrasonic flow meter is described, with a transducer housing and with a transducer element, the transducer housing having an ultrasound window and a housing tube, the transducer element being made for sending or receiving ultrasonic waves and being either near the ultrasound window of the transducer housing or away from the ultrasound window of the transducer housing, there being a relatively soft mechanical coupling system and the mechanical coupling system having preferably at least one weakly coupled mechanical resonator. The ultrasonic transducer is improved with respect to the prevention of the transmission of housing waves by there being a second soft mechanical coupling system.
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Citations
16 Claims
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1. An ultrasonic transducer for use in an ultrasonic flow meter, comprising:
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a transducer housing having an ultrasound window and a housing tube, a transducer element for sending or receiving ultrasonic waves located in the transducer housing, a first relatively weak mechanical coupling system having at least one weakly coupled mechanical resonator or two weakly coupled mechanical resonators, and a second weak mechanical coupling system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Ultrasonic transducer for use in an ultrasonic flow meter, comprising:
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a transducer housing having an ultrasound window in a first region, a transducer element for sending or receiving ultrasonic waves and located close to the ultrasound window of the transducer housing or far from the ultrasound window of the transducer housing, wherein ultrasonic waves are transmitted as housing waves between the first region of the transducer housing via a relaying second region of the transducer housing into a third region of the transducer housing which is opposite the first region of the transducer housing, a relatively weak mechanical coupling system provided in the second region of the transducer housing and having at least two weakly coupled mechanical resonators, wherein a damping material is provided with the transducer housing. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification