Ultrasonic inspection apparatus专利检索-无损检测材料测试专利检索查询-专利查询网

Ultrasonic inspection apparatus

阅读：508发布：2024-01-21

专利汇可以提供Ultrasonic inspection apparatus专利检索，专利查询，专利分析的服务。并且An ultrasonic nondestructive testing system is disclosed for inspecting materials for internal discontinuities. The system includes a transducer for generating ultrasonic energy and radiating such energy toward the workpiece. The transducer includes one or more electrodes which are disposed in an electrolyte. A pulse generator circulates a very short duration pulse of electricity between the electrodes and through the electrolyte whereby a pulse of ultrasonic energy is transmitted. By controlling the amplitude, duration and other characteristics of the current it is possible to control the characteristics of the radiated ultrasonic energy.，下面是Ultrasonic inspection apparatus专利的具体信息内容。

权利要求

1. In an ultrasonic nondestructive material tester for testing a workpiece a transmitting transducer including: a plurality of pairs of spaced electrodes forming a current path therebetween, each said pair of said plurality being aligned with one another and spaced a predetermined distance between one another; an electrically conductive fluid being disposed between the current paths of said pairs of electrodes; means coupled to said plurality of pairs of electrodes for sequentially applying a potential to said plurality of pairs of electrodes for causing a current to flow sequentially between each pair of such plurality: and means for limiting the current flow between said plurality of pairs of electrodes to a level below the arcing point thereof whereby each pair of said plurality of pairs of electrodes has current flow therebetween timed to occur as the ultrasonic wave flow travels across each current path.

2. A nondestructive tester for testing a workpiece, said tester including the combination of: a transducer having a pair of electrodes electrically separated from each other by spaced current path; an electrically conductive fluid between the electrodes of said pair filling said path, the fluid being sufficiently electrically conductive to allow current to flow between said pair of electrodes when the voltage across said pair of electrodes is less than a predetermined breakdown voltage level; pulse means coupled across the electrodes in said transducer for applying a voltage across said pair of electrodes which is below the breakdown voltage of said path, said pulse means being effective to produce an electrical current between the electrodes and through the electrically-conductive fluid, whereby ultrasonic energy is transmitted toward the workpiece; at least one additional pair of electrodes effective to form at least one additional spaced current path, the current paths being separated from each other by a predetermined distance; and said pulse means being effective to circulate pulses of current sequentially across said spaced current paths, whereby ultrasonic energy is produced in each path, said pulse means being effective to circulate said current pulses at intervals which are substantially coincident with the intervals required for the ultrasonic energy to travel said predetermined distances.

3. The nondestructive tester as defined in claim 2 and including receiving means effective to receive the ultrasonic energy from the workpiece.

4. The nondestructive tester as defined in claim 2, wherein the pulse means is effective to circulate a pulse of electric current across the pulsed current path which is substantially unipolar.

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Ultrasonic inspection apparatus

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