Digital sequence driving type ultrasonic sensor method and device thereof

An ultrasonic sensor, digital sequence technology, applied in the generation of ultrasonic/sonic/infrasonic waves, measurement devices, material analysis using sonic/ultrasonic/infrasonic waves, etc., can solve problems such as small adjustable range, inflexible use, and single function , to achieve the effect of good incentive effect, simple power supply mode and convenient operation

Active Publication Date: 2019-09-20
JIANGSU UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] Most of the ultrasonic sensor excitation methods on the market currently use analog circuits or main control chips to excite detection ultrasonic waves with specific frequencies and specific powers, which have shortcomings such as single function, small adjustable range, and insufficient flexibility in use, which is not convenient for multiple applications in complex occasions. Function Ultrasonic excitation

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  • Digital sequence driving type ultrasonic sensor method and device thereof
  • Digital sequence driving type ultrasonic sensor method and device thereof
  • Digital sequence driving type ultrasonic sensor method and device thereof

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Embodiment Construction

[0033] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the present invention can also be applied through other equivalent implementation modes, and the implementation modes and accompanying drawings provided in the following examples are only illustrative to illustrate the basic technical idea of ​​the present invention, and the relevant elements in the examples are Parameters such as model, number, shape, and size can be changed in specific implementation environments.

[0034] figure 2 It is the overall functional block diagram of the excitation device for arbitrary digital sequences of ultrasonic sensors in the embodiment of the present invention. The excitation device is composed of the minimum system of FPGA as the control module, and the control signal is the logic level of high level +3.3V and low level 0V; the ultrasonic excitation module is compose...

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Abstract

The invention discloses a digital sequence driving type ultrasonic sensor method and a device thereof. The method comprises: S1, generating a logic level by a control module formed by using a digital chip such as an FPGA or an ARM as a core to obtain a digital sequence a(k); A2, generating a high energy excitation signal xn(t) by an ultrasonic excitation module using an ultrasonic excitation chip as a core; and S3, exciting the ultrasonic sensor by the high energy excitation signal to generate an ultrasonic signal yn(t) with the controllable excitation signal. In addition, the device for implementing the method includes a control module, an ultrasonic excitation module, and an ultrasonic sensor module. According to the invention, the ultrasonic excitation signal parameters are adjustable; and the method and the device thereof are suitable for occasions needing different waveforms to excite one or more ultrasonic sensors.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic detection, and relates to a method and a device for driving an ultrasonic sensor by a digital sequence. The parameters of the ultrasonic excitation signal in the invention are adjustable, and are especially suitable for occasions requiring different waveforms to excite ultrasonic sensors. Background technique [0002] Ultrasonic testing is an important non-destructive testing method, which has been widely developed and applied at home and abroad. In recent years, integrated circuits based on electronic science and technology have developed rapidly. On this basis, ultrasonic testing systems are developing in the direction of digitization, integration, functionality and portability. The current ultrasonic signal excitation forms can be divided into pulse excitation form and coded excitation form. The pulse excitation generation method is simple and easy to adjust, but the amplitude of the excita...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/34
CPCG01N29/341G01N29/348G01N2291/101
Inventor 宋寿鹏邱越乔梦丽陈昊成芮萱
Owner JIANGSU UNIV
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