Combined modulation ultrasonic pulse transceiving method and device

An ultrasonic and pulse technology, applied in the field of information processing, can solve the problems of fine detection of complex metal parts, and does not include multiple pulse signal processing capabilities, so as to achieve the effect of improving measurement accuracy

Inactive Publication Date: 2012-07-18
斯肯威(上海)工业检测科技有限公司
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Problems solved by technology

However, because the previous detection is limited to the processing of the echo of a single pulse and does not include the signal processing capability of multiple pulses, it is impossible to perform fine detection on complex metal parts, such as metal and composite material parts with changes in thickness and shape. , or metal and composite parts with complex textures inside
[0003] Aiming at the problem that the existing technology detection is only limited to the processing of the echo of a single pulse, and does not include the signal processing capability of multiple pulses, so it is impossible to perform fine detection on complex metal parts, a combined modulation ultrasonic pulse transceiver is proposed. The method and device are one of the urgent problems to be solved in the field of information processing technology

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  • Combined modulation ultrasonic pulse transceiving method and device
  • Combined modulation ultrasonic pulse transceiving method and device
  • Combined modulation ultrasonic pulse transceiving method and device

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Embodiment Construction

[0028] In a method and device for transmitting and receiving combined modulated ultrasonic pulses provided by the embodiments of the present invention, by setting excitation pulse train parameters according to requirements, then starting the pulse transmitter to start transmitting ultrasonic pulses, and then receiving and processing the pulse echoes, and finally the processor will accept the The received echo signal is processed by synthetic feature, and the processing result is displayed. In this scheme, several pulses in a pulse train are set with different pulse widths and pulse intervals, and the combined modulation method of pulse width modulation and period adjustment is used to improve the measurement performance. precision.

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0030] The ...

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Abstract

The invention provides a combined modulation ultrasonic pulse transceiving method and a combined modulation ultrasonic pulse transceiving device. Excitation pulse string parameters are set according to requirements, then, ultrasonic pulses are started to be transmitted through starting a pulse transmitter, next, pulse back waves are received and processed, finally, a processor is used for carrying out synthesis feature processing on the received back wave signals, and in addition, processing results are displayed. Through the scheme, different pulse widths and pulse intervals are set for a plurality of pulses in one pulse string, and the combined modulation mode of pulse width modulation and period regulation is adopted, so that the measurement precision is improved.

Description

technical field [0001] The invention relates to the technical field of information processing, in particular to a method and device for transmitting and receiving combined modulated ultrasonic pulses. Background technique [0002] Ultrasonic NDT equipment is widely used in metal and composite material testing in various industrial sectors. These devices include the ability to transmit ultrasonic pulses and receive echo pulses at a certain repetition rate. However, since the previous detection is limited to the processing of the echo of a single pulse and does not include the signal processing capability of multiple pulses, it cannot perform fine detection on complex metal parts, such as metal and composite parts with varying thickness and shape. , or metal and composite parts with complex textures inside. [0003] Aiming at the problem that the detection in the prior art is only limited to the processing of the echo of a single pulse, and does not include the signal proces...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B11/00
Inventor 杨永刚王军文尚卫华
Owner 斯肯威(上海)工业检测科技有限公司
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