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Freely combinned acoustic sensor set used for detecting by foundation pile acoustic transmission method

An acoustic wave sensor group, the technology of acoustic wave sensor, is applied in the direction of material analysis, basic structure test, instrument, etc. using acoustic wave/ultrasonic wave/infrasound wave, which can solve the problems of uneconomical, sensor damage, scrapping, etc., to prolong the service life and save money. Cost, Ease of Use

Active Publication Date: 2016-06-15
武汉中岩科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually once a sensor group is completed, the connection relationship between each sensor and each core wire of the cable is different. The number of sensors is fixed and cannot be flexibly changed according to the needs of on-site detection. This is obviously uneconomical. For smaller piles When detecting foundation piles with large diameters, some sensors in the sensor group are always in a non-working state. In addition, the sensors will inevitably suffer various damages during use, and once a sensor is damaged, the sensor is not easy to replace, resulting in the entire The use of the sensor group is affected, or even scrapped

Method used

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  • Freely combinned acoustic sensor set used for detecting by foundation pile acoustic transmission method
  • Freely combinned acoustic sensor set used for detecting by foundation pile acoustic transmission method
  • Freely combinned acoustic sensor set used for detecting by foundation pile acoustic transmission method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Such as figure 1 As shown, the freely combinable acoustic wave sensor group used for the detection of foundation pile acoustic wave transmission method includes a cable L, and also includes a cable connector end LBS, N acoustic wave sensor units S, and a transmitting connector arranged in sequence from top to bottom Terminal BP, N is a natural number greater than or equal to 1;

[0063] Cable L includes ground wire LG, high voltage wire LT, and N signal wires Ch I ;I is the serial number, I∈{1~N};

[0064] Each acoustic wave sensor unit S includes a transducer unit Tr, a top connector end STP, and a bottom connector end SBS;

[0065] The cable connector end LBS, the top connector end STP, the bottom connector end SBS and the launch connector end BP all include a ground wire end G, a high voltage wire end T, a signal wire end I numbered 1 to N in sequence, and a wire end numbered 0. signal terminal 0;

[0066] The ground wire LG and the high voltage wire LT of the c...

Embodiment 2

[0076] Such as image 3 As shown, the freely combinable acoustic wave sensor group for the detection of foundation pile acoustic wave transmission method includes the cable L, and also includes the cable connector end LBS, 4 acoustic wave sensor units S, and the transmitting connector arranged in sequence from top to bottom End BP.

[0077] Cable L includes ground wire LG, high voltage wire LT, and N signal wires Ch I ; I is the serial number, I∈{1~4}.

[0078] Each acoustic wave sensor unit S includes a transducer unit Tr, a top connector terminal STP, and a bottom connector terminal SBS.

[0079] The cable connector end LBS, the top connector end STP, the bottom connector end SBS and the launch connector end BP all include the ground wire end G, the high voltage wire end T, and the signal wire end 1 ~ signal wire end 4 numbered in sequence from 1 to 4 and signal terminal 0 numbered 0.

[0080] The ground wire LG and the high voltage wire LT of the cable L are respectivel...

Embodiment 3

[0089] Such as Figure 4 As shown, the freely combinable acoustic wave sensor group (including the gating device) used for the detection of the acoustic wave transmission method of the foundation pile, a gating device SC is added to the cable connector end LBS, and the gating device SC is controlled by the control line LC The next step is to connect a certain signal line I among the N signal lines to the output line Vi, where I∈{1~N}. The convenience of this solution is that the connection relationship between the cable L and the acoustic wave instrument is fixed and does not change with the number N of acoustic wave sensor units in the sensor group, and the others are the same as in Embodiment 2.

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Abstract

The invention discloses a freely combinned acoustic sensor set used for detecting by a foundation pile acoustic transmission method. The acoustic sensor set comprises a cable wire L, and further comprises a cable connector end LBS, N acoustic sensor units S and a transmission connector end BP, which are arranged in sequence from top to bottom, wherein N is a natural number which is more than or equal to 1; the cable L comprises a ground wire LG, a high-voltage wire LT and N signal wires ChI; each acoustic sensor unit S comprises an energy converter unit Tr, a top connector end STP and a bottom connector end SBS; and each of the cable connector end LBS, the top connector ends STP, the bottom connector ends SBS and the transmission connector end BP comprises a ground wire end G, a high-voltage wire end T, signal wire ends I with numbers of 1 to N in sequence, and a signal wire end 0 with number of 0. The acoustic sensor set disclosed by the invention is convenient to use and can be freely added, exchanged and replaced, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of detecting the integrity of foundation piles using acoustic wave transmission tomography CT in the field of geotechnical engineering detection, and in particular relates to a freely combinable acoustic wave sensor group used for foundation pile acoustic wave transmission detection. Background technique [0002] When performing tomographic calculations, considering the average particle size of the stones in the aggregate of concrete materials, the division unit is usually 100mm, and the distance between sensors in the sensor group should not be greater than 100mm during on-site detection. On-site detection is actually to obtain the detection acoustic time data of each acoustic measurement line of each detection sector, (detection sector: a sound wave is emitted at a certain height position in one acoustic measurement tube, and received at multiple height positions in another acoustic measurement tube Acoust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/24E02D33/00
CPCE02D33/00G01N29/24
Inventor 杨永波尹中南张杰邹宇
Owner 武汉中岩科技股份有限公司
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