Method of nondestructively testing materials by ultrasound专利检索-无损检测材料测试专利检索查询-专利查询网

Method of nondestructively testing materials by ultrasound

阅读：898发布：2024-01-02

专利汇可以提供Method of nondestructively testing materials by ultrasound专利检索，专利查询，专利分析的服务。并且A method of nondestructively testing materials by ultrasound comprises continuously supplying a non-contact-making transmitter with electrical high-frequency power at a suitable frequency for generating ultrasound waves; amplitude-modulating with a low frequency in the transmitter and/or in a receiver the ultrasound waves generated in the transmitter and/or the signal voltage received in the receiver by the creation of a low-frequency magnetic field; and using the amplitude-modulation for separating the received signals from internal noise or external interference.，下面是Method of nondestructively testing materials by ultrasound专利的具体信息内容。

权利要求

1. A methOd of nondestructively testing materials by a transmitter and a receiver of ultrasound, wherein the transmitter and receiver each have characteristic directional lobes during operation thereof, said method comprising the steps of: a. continuously supplying a non-contact-making transmitter with electrical high frequency power at a suitable frequency for generating ultrasound waves; b. amplitude-modulating the generated ultrasound waves with a low frequency produced by the creation of a low-frequency magnetic field, and c. separating the received acoustical signals from internal noise or external interference by detection of the amplitudemodulation.

2. A method as defined in claim 1, wherein the characteristic directional lobes of the transmitter and the receiver are caused locally to overlap in a geometrical configuration whereby the reception of the sound waves refracted or reflected by the defect also positionally locates the defect.

3. A method as defined in claim 1, wherein the transmitter is unilaterally directionally coupled to a first particular mode; a second particular mode is generated by conversion of said first generated mode, and there is a receiver which is unidirectionally coupled to said second particular mode whereby the receiver detects a defect by the reception of the second mode.

4. A method as defined in claim 3, wherein the mode transmitted by the transmitter is transmitted in the form of right or left hand helices for testing rods or tubes.

5. A method of nondestructively testing materials by ultrasound comprising the steps of: a. providing non-contact-making means for transmitting and receiving ultrasound waves within the material to be tested, b. continuously supplying the transmitting means with electrical high-frequency power at a suitable frequency for generating ultrasound waves, c. producing a low-frequency in the non-contact-making means to amplitude-modulate the high-frequency oscillations present in the non-contact-making means during operation thereof, and d. evaluating the amplitude-modulated high-frequency oscillations to separate the received acoustical signals caused by internal noise or external interference.

6. A method as defined in claim 10, wherein the low-frequency is produced in the transmitting means.

7. A method as defined in claim 10, wherein the low-frequency is produced in the receiving means.

8. A method as defined in claim 10, wherein the low-frequency is produced by the creation of a low-frequency magnetic field.

9. A method of nondestructively testing materials by ultrasound comprising the steps of: a. providing a non-contact-making transmitter and a non-contact-making receiving receiver of ultrasound waves within the material to be tested, b. continuously supplying the transmitter with a suitable frequency for generating ultrasound waves, c. amplitude-modulating the signal voltage received in the receiver with a low-frequency produced by the creation of a low-frequency magnetic field, and d. evaluating the amplitude-modulated high-frequency oscillations to separate the received acoustical signals caused by internal noise or external interference.

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Method of nondestructively testing materials by ultrasound

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