阅读说明：本技术 应用脉冲回波探伤的岩土无损检测系统及检测方法 (Rock-soil nondestructive testing system and method applying pulse echo flaw detection ) 是由 王维铭 武鹤 刘振平 孙绪杰 董艳秋 孙义强 于 2019-11-29 设计创作，主要内容包括：应用脉冲回波探伤的岩土无损检测系统及检测方法。岩土工程的质量和安全性也提出了更高的要求,岩土工程的质量检测受到越来越多的关注,传统的检测技术已经无法满足现在的检测要求。本发明组成包括：时钟脉冲发生器(3),所述的时钟脉冲发生器与脉冲发生器(4)和时基发生器(2)电连接,所述的时基发生器与示波器(1)电连接,所述的脉冲发生器与探头(5)和射频前置放大器(6)电连接,所述的射频前置放大器与检波器(7)电连接,所述的检波器与所述的示波器电连接。本发明用于岩土工程的无损检测系。(A rock and soil nondestructive testing system and a testing method applying pulse echo flaw detection are provided. The quality and the safety of geotechnical engineering also put forward higher requirements, the quality detection of geotechnical engineering receives more and more attention, and the traditional detection technology can not meet the current detection requirements. The invention comprises the following components: the device comprises a clock pulse generator (3), wherein the clock pulse generator is electrically connected with a pulse generator (4) and a time base generator (2), the time base generator is electrically connected with an oscilloscope (1), the pulse generator is electrically connected with a probe (5) and a radio frequency preamplifier (6), the radio frequency preamplifier is electrically connected with a detector (7), and the detector is electrically connected with the oscilloscope. The invention is used for a nondestructive testing system of geotechnical engineering.)

1. A rock and soil nondestructive testing system applying pulse echo flaw detection comprises: clock pulse generator, characterized by: the pulse generator is electrically connected with the probe and the radio frequency preamplifier, the radio frequency preamplifier is electrically connected with the detector, and the detector is electrically connected with the oscilloscope.

2. The nondestructive testing system for rock and soil by using pulse echo flaw detection according to claim 1, wherein: and a video amplifier is connected between the detector and the oscilloscope.

3. The nondestructive testing system for rock and soil by using pulse echo flaw detection according to claim 2, wherein: the pulse wave frequency of the clock pulse generator is 10-1000 MHz.

4. The nondestructive testing system for rock and soil using pulse echo flaw detection according to claims 1 to 3, wherein: the detection method of the rock and soil nondestructive detection system applying the pulse echo flaw detection is characterized by comprising the following steps of: the method comprises the following steps: the clock pulse generator sends out a wide-screen-band short pulse through the pulse generator, reflected waves can appear when a gap is met in pulse propagation, the reflected waves can upload the propagation condition to the oscilloscope through the wave detector, and the position and the condition of rock and soil defects can be obtained according to the condition displayed by the oscilloscope.

The technical field is as follows:

the invention relates to a rock and soil nondestructive testing system and a rock and soil nondestructive testing method applying pulse echo flaw detection.

Background art:

along with the development and progress of socioeconomic in China, the scales of various geotechnical engineering are continuously enlarged, higher requirements are provided for the quality and safety of the geotechnical engineering, the quality detection of the geotechnical engineering is concerned more and more, and the traditional detection technology cannot meet the current detection requirements.

The invention content is as follows:

the invention aims to solve the problems of the existing detection method and provide a rock-soil nondestructive detection system and a detection method which reduce the labor cost input and simplify the detection process and use pulse echo flaw detection.

The above purpose is realized by the following technical scheme:

a rock and soil nondestructive testing system applying pulse echo flaw detection comprises: the device comprises a clock pulse generator, wherein the clock pulse generator is electrically connected with the pulse generator and a time base generator, the time base generator is electrically connected with an oscilloscope, the pulse generator is electrically connected with a probe and a radio frequency preamplifier, the radio frequency preamplifier is electrically connected with a detector, and the detector is electrically connected with the oscilloscope.

The rock and soil nondestructive testing system applying the pulse echo flaw detection is characterized in that a video amplifier is connected between the detector and the oscilloscope.

In the rock-soil nondestructive testing system applying the pulse echo flaw detection, the pulse wave frequency of the clock pulse generator is 10-1000 MHz.

A detection method of a rock and soil nondestructive detection system applying pulse echo flaw detection comprises the following steps: the clock pulse generator sends out a wide-screen-band short pulse through the pulse generator, reflected waves can appear when a gap is met in pulse propagation, the reflected waves can upload the propagation condition to the oscilloscope through the wave detector, and the position and the condition of rock and soil defects can be obtained according to the condition displayed by the oscilloscope.

Has the advantages that:

1. the invention reduces the investment of monitoring labor cost, is easier to operate, simplifies the detection process, has wide detection scope, is less influenced by the environment, and can effectively obtain the condition of geotechnical engineering by capturing the reflected wave at the medium junction and according to the propagation time of the reflected wave from the medium junction to the receiver and the amplitude of the reflected wave.

The invention can effectively detect the aspects of the water change quantity of the base layer, the thickness of the base layer, the compactness and the like of geotechnical engineering, and has high resolution capability.

Description of the drawings:

FIG. 1 is a schematic diagram of the present invention;

in the figure: 1. an oscilloscope; 2. a time base generator; 3. a clock pulse generator; 4. a pulse generator; 5. a probe; 6. a radio frequency preamplifier; 7. a detector; 8. and a video amplifier.

The specific implementation mode is as follows: