Material tester专利检索-无损检测材料测试专利检索查询-专利查询网

Material tester

阅读：786发布：2024-01-28

专利汇可以提供Material tester专利检索，专利查询，专利分析的服务。并且This invention relates to ultrasonic nondestructive testing wherein ultrasonic energy is transmitted into a workpiece and the various characteristics of the workpiece, such as the presence or absence of defects, are determined by receiving ultrasonic energy reradiated from the workpiece. The system includes one or more transmitting transducers positioned to transmit ultrasonic energy onto the surface of the workpiece at an oblique angle whereby the ultrasonic energy is converted into a shear mode and propagates laterally through the workpiece into an inspection region. If there are any discontinuities within the inspection region at least a portion of the incident shear waves are reradiated from the discontinuity. A receiving transducer is disposed laterally from the transmitting transducer and substantially normal to the surface of the workpiece for receiving the reradiated energy. In addition, several novel forms of scanning are provided for inspecting large areas of the workpiece and producing a printed record of the characteristics of the workpiece.，下面是Material tester专利的具体信息内容。

权利要求

1. Ultrasonic inspection means for inspecting a workpiece including: a first transducer for transmitting pulses of ultrasonic energy into the workpiece in response to an electrical signal; a second transducer having a sensitive axis for receiving reradiated ultrasonic energy from the workpiece and producing an electrical signal corresponding thereto; mounting means securing said first and second transducers together in a predetermined angular spaced relation to each other, said first transducer being angular to the surface of the workpiece and the sensitive axis of said second transducer being normal to the surface of the workpiece; gating means synchronized with the transmitted pulses of said transmitting transducer for gating only portions of the reradiated ultrasonic energy; means for scanning one of said transducers relative to the other transducer in the predetermined angular relationship along a scan line extending over the surface of the workpiece, and recording means coupled to said second transducers and responsive to said gating means for providing a record of the gated portions of reradiated energy.

2. The ultrasonic inspection means as defined in claim 1 wherein said transducers being disposed on a common plane substantially parallel to said scan line.

3. The ultrasonic inspection means of claim 1 wherein: said transducers being disposed on a common plane; and said scan means for scanning both of said transducers at a first rate in a first direction substantially parallel to the plane and at a second rate in a second direction substantially normal to the plane.

4. Ultrasonic inspection apparatus for inspecting a region of a workpiece having a welded seam, said apparatus including: a pair of transmitting transducers disposed on the opposite sides of the weld seam for transmitting beams of ultrasonic energy into said workpiece for propagating through the weld in the form of shear waves, a receiving transducer having a sensitive axis disposed between said transmitting transducers, said receiving transducer including a sensitive axis being disposed normal to the surface of the workpiece to receive ultrasonic energy reradiated from the workpiece and produce an electrical signal in response thereto, and means for scanning the receiving transducer back and forth between the transmitting transducers and over the portion of the workpiece containing the weld seam.

5. The inspection apparatus as defined in claim 4 including recording means coupled to said receiving transducer and responsive to the signals therefrom for producing a record of the signals.

6. Ultrasonic inspection apparatus for inspecting a region of a workpiece having a welded seam saiD apparatus including: a transmitting transducer disposed on one side of said weld seam for transmitting beams of ultrasonic energy into the workpiece for propagating the ultrasonic energy into the weld region; a receiving transducer having a sensitive axis, the sensitive axis of said receiving transducer being disposed normal to the surface of the workpiece for receiving ultrasonic energy reradiated from the workpiece and producing an electrical signal in response thereto; and means for scanning the receiving transducer and the transmitting transducer relative to each other and on an axis crossing over the weld seam of the workpiece.

7. The ultrasonic inspection apparatus as defined in claim 6 wherein said receiving transducer scans vertically across the weld seam.

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