Device for testing of oblong objects by means of ultrasonic waves
First Claim
1. A device for ultrasonic inspection of cylindrical objects comprising at least one ultrasonic transducer comprising means for transmitting ultrasonic waves and receiving ultrasonic waves reflected by flaws in said cylindrical object to generate output signals, a coupling medium, means for mounting a cylindrical object to receive said ultrasonic waves via said coupling medium, and means for evaluating said output signals and thereby detecting faults in said cylindrical object, said ultrasonic transducer comprising at least three transducer elements arranged in a row next to one another along a receiving line or in steps along a line with their sound transmitting or sound receiving surfaces parallel to one another and to a receiving line, the outer transducer elements being receiving-only transducer elements and a transducer element or transducer elements surrounded by said receiving-only transducer element being transmitters or transmitter-receivers, said receiving line being inclined from the longitudinal axis of said object by an angle in the range between 5°
- and 20°
.
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Accused Products
Abstract
The object of the invention is a device for ultrasonic inspection of cylindrical objects. A transmitting ultrasonic transducer generates ultrasonic waves that are acoustically irradiated into the respective object via a coupling medium. At least three ultrasonic transducers are arranged in a row next to one another along a line. The outer ultrasonic transducers are receiving ultrasonic transducers. The other ultrasonic transducers are transmitting or transmitting/receiving ultrasonic transducers. The line is inclined against the longitudinal axis of the object by an angle which is between 0°and 45°.
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Citations
10 Claims
- 1. A device for ultrasonic inspection of cylindrical objects comprising at least one ultrasonic transducer comprising means for transmitting ultrasonic waves and receiving ultrasonic waves reflected by flaws in said cylindrical object to generate output signals, a coupling medium, means for mounting a cylindrical object to receive said ultrasonic waves via said coupling medium, and means for evaluating said output signals and thereby detecting faults in said cylindrical object, said ultrasonic transducer comprising at least three transducer elements arranged in a row next to one another along a receiving line or in steps along a line with their sound transmitting or sound receiving surfaces parallel to one another and to a receiving line, the outer transducer elements being receiving-only transducer elements and a transducer element or transducer elements surrounded by said receiving-only transducer element being transmitters or transmitter-receivers, said receiving line being inclined from the longitudinal axis of said object by an angle in the range between 5°
Specification