CN102866206A - Ultrasonic concrete detection probe - Google Patents
Ultrasonic concrete detection probe Download PDFInfo
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- CN102866206A CN102866206A CN2012103227893A CN201210322789A CN102866206A CN 102866206 A CN102866206 A CN 102866206A CN 2012103227893 A CN2012103227893 A CN 2012103227893A CN 201210322789 A CN201210322789 A CN 201210322789A CN 102866206 A CN102866206 A CN 102866206A
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Abstract
The invention discloses an ultrasonic concrete detection probe. The ultrasonic concrete detection probe consists of a large-power signal transmitting probe and a large-power signal receiving probe, wherein the proportion between the effective areas of the large-power signal transmitting probe and the large-power signal receiving probe is 2:1 or more than 2:1, the large-power signal transmitting probe is connected with a single-channel communication cable, and the large-power signal receiving probe is connected with a 28-core multichannel communication cable. The ultrasonic concrete detection probe has the advantages that the real-time inner image can be photographed and the monitoring result is straightforward.
Description
Technical field
The present invention relates to a kind of ultrasonic concrete NDT probe, the ultrasonic concrete NDT probe of applicable Type B is used for the capital construction concrete construction, the quality testing of bridge casting and constructing etc., and the regular detection of the concrete qualities such as existing bridge, dam, building.
Background technology
At present, concrete construction and existing bridge, overhead, the Ultrasonic Detection of dam etc. concrete construction and concrete construction quality, use be that through transmission technique or the echo method of A-mode ultrasonic probe detects, can not make real-time embedded image, testing result is fuzzyyer, and this detection method is not directly perceived, and error information detection is large, operation is cumbersome during detection, operating personnel's technical ability required very high.
Summary of the invention
The objective of the invention is in order to overcome above deficiency, provide a kind of and can make real-time embedded image, the straightforward ultrasonic concrete NDT probe of monitoring result.
Purpose of the present invention is achieved through the following technical solutions: a kind of ultrasonic concrete NDT probe, described detection probe is comprised of high-power signal transmitting probe and high-power signal receiving transducer, the useful area of high-power signal transmitting probe and high-power signal receiving transducer adopts 2:1 or greater than the ratio of 2:1, the high-power signal transmitting probe is connected with the single channel telecommunication cable, and the high-power signal receiving transducer is connected with 28 core multichannel communication cables.
Further improvement of the present invention is: the high-power signal transmitting probe is followed successively by the first matching layer, emission layer and the first absorbent treatment from front to back, and the emission layer transverse cuts becomes a plurality of arrays of 1mm spacing, and the positive and negative electrode of each array is in parallel.
Further improvement of the present invention is: the high-power signal receiving transducer is followed successively by the second matching layer, transducer layer and the second absorbent treatment from front to back, the transducer layer transverse cuts becomes a plurality of array elements of 1mm spacing, each array element is drawn respectively signal core line, the ground line parallel of each array element.
Further improvement of the present invention is: the first matching layer and the second matching layer all adopt aluminum alloy materials, and the acoustic impedance of aluminium alloy is 15 * 10
6Kg/(m
2S).
Further improvement of the present invention is: emission layer adopts piezoelectric ceramics, and emission layer is comprised of 64-128 described array.
Further improvement of the present invention is: transducer layer adopts piezoelectric ceramics, and transducer layer is comprised of 64-128 array element.
Further improvement of the present invention is: the first absorbent treatment and the second absorbent treatment are the sound sucting ring epoxy resins.
The present invention compared with prior art has the following advantages:
1, simple to operate, only need add couplant, be placed on detected position, can go out instant image;
2, reduce the detection required time, the preliminary work of phase before and after not needing;
3, testing result directly shows with image, and the concrete inner structure that reflects and defective can show with real image, and the inferential judgement than before equipment provides has more fully foundation.
Description of drawings:
Fig. 1 is structural representation of the present invention;
Number in the figure: 1-high-power signal transmitting probe, 2-high-power signal receiving transducer, 3-single channel telecommunication cable, 4-28 core multichannel communication cable, 5-the first matching layer, 6-emission layer, 7-the first absorbent treatment, 8-the second matching layer, 9-transducer layer, 10-the second absorbent treatment, 11-array element.
Embodiment:
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment and accompanying drawing, and this embodiment only is used for explaining the present invention, does not consist of the restriction to protection domain of the present invention.
Show a kind of embodiment of the ultrasonic concrete NDT probe of the present invention such as Fig. 1, described detection probe is comprised of high-power signal transmitting probe 1 and high-power signal receiving transducer 2, the useful area of high-power signal transmitting probe 1 and high-power signal receiving transducer 2 adopts 2:1 or greater than the ratio of 2:1, high-power signal transmitting probe 1 is connected with single channel telecommunication cable 3, and high-power signal receiving transducer 2 is connected with 28 core multichannel communication cables 4.High-power signal transmitting probe 1 is followed successively by the first matching layer 5, emission layer 6 and the first absorbent treatment 7 from front to back, and emission layer 6 transverse cuts become a plurality of arrays of 1mm spacing, and the positive and negative electrode of each described array is in parallel.High-power signal receiving transducer 2 is followed successively by the second matching layer 8, transducer layer 9 and the second absorbent treatment 10 from front to back, and transducer layer 9 transverse cuts become a plurality of array elements 11 of 1mm spacing, and each array element 11 is drawn respectively signal core line, the ground line parallel of each array element 11.The first matching layer 5 and the second matching layer 8 all adopt aluminum alloy materials, and the acoustic impedance of aluminium alloy is 15 * 10
6Kg/(m
2S).Emission layer 6 adopts piezoelectric ceramics, and emission layer 6 is comprised of 64-128 array.Transducer layer 9 adopts piezoelectric ceramics, and transducer layer 9 is comprised of 64-128 array element 11.The first absorbent treatment 7 and the second absorbent treatment 10 are the sound sucting ring epoxy resins.
The outermost contact portion used thickness of high-power signal transmitting probe is that the quarter-wave aluminum alloy materials of setpoint frequency is made, and adopts aluminum alloy materials as matching layer, and the acoustic impedance of aluminium alloy is 15 * 10
6Kg/(m
2S) about, between piezoelectric ceramics and concrete, and the protective seam of aluminium alloy can also contact with concrete as probe the time; Emission layer uses the PZT piezoelectric ceramics, adopt the array of transverse cuts 1mm spacing, the general ratio that adopts 64-128 array element, emission layer is as Sensor section, the positive and negative electrode of all arrays is in parallel, make it to become the single primitive transmitting probe after the parallel connection of many array element, like this, the probe emission efficiency and the transmitted bandwidth that cut into after array element is arranged will be multiplied; The rear portion of emission layer uses the sound sucting ring epoxy resins to add a large amount of fillers, absorbs unnecessary acoustic energy as the ultrasonic transducer rear portion, increases the probe bandwidth, and makes to support fixation.The outermost contact portion used thickness of high-power signal receiving transducer is that the quarter-wave aluminum alloy materials of setpoint frequency is made, and adopts aluminum alloy materials as matching layer, and the acoustic impedance of aluminium alloy is 15 * 10
6Kg/(m
2S) about, between piezoelectric ceramics and concrete, and the protective seam of aluminium alloy can also contact with concrete as probe the time; Transducer layer is used the PZT piezoelectric ceramics, the piezoelectric ceramics transverse cuts becomes 64-128 array element, each array element is drawn respectively signal core line, the ground line parallel of each array element, the linear array probe of 64-128 array element or phased array probe, material adopts the piezoelectric ceramics of high-k, in order to after cutting into array lower impedance is arranged, can better receive echoed signal, each road all receives primitive as a signal, after each array element signals output, signal is processed into picture can adopt multi-beam or phased-array technique; The rear portion of transducer layer uses the sound sucting ring epoxy resins to add a large amount of fillers, absorbs unnecessary acoustic energy as the ultrasonic transducer rear portion, increases the probe bandwidth, and makes to support fixation.
Each is responsible for the ultrasonic array probe that signal sends out, receives and forms by two of high-power signal transmitting probe and high-power signal receiving transducers in the present invention.The high-power signal transmitting probe is responsible for the ultrasonic pulsative signal emission, and the high-power signal receiving transducer is responsible for echoed signal and is received.Because concrete is very large to the attenuation of ultrasonic signal, must add high voltage so transmit, and adds high-power.What transmitting probe transmitted employing is the single pulse signal of the characteristic frequency between the 200-500KHZ, and in order to receive the emission of ultrasonic signal each medium in concrete, the pulse power of emission single pulse signal is greater than 2 kilowatts.Because need powerful emission, whole probe relates to into the form that transmitting-receiving separates, and the useful area of transmitting-receiving probe adopts 2:1 or greater than the ratio of 2:1, like this, namely ensure enough signal emitting areas, also strengthen the area that receives array element, reduce to receive the impedance of array element, be beneficial to signal and receive.High-power signal transmitting probe and high-power signal receiving transducer can not on a plane, can be manufactured with certain interior angle, to reach focusing effect.Outside of the present invention can be installed aluminium alloy or the plastic casing of metal coating is arranged, and plays the protection probe, the effect of convenient use and interference shielding.
Claims (7)
1. a ultrasonic concrete NDT is popped one's head in, it is characterized in that: described detection probe is comprised of high-power signal transmitting probe (1) and high-power signal receiving transducer (2), the useful area of described high-power signal transmitting probe (1) and described high-power signal receiving transducer (2) adopts 2:1 or greater than the ratio of 2:1, described high-power signal transmitting probe (1) is connected with single channel telecommunication cable (3), and described high-power signal receiving transducer (2) is connected with 28 core multichannel communication cables (4).
2. described ultrasonic concrete NDT is popped one's head in according to claim 1, it is characterized in that: described high-power signal transmitting probe (1) is followed successively by the first matching layer (5), emission layer (6) and the first absorbent treatment (7) from front to back, described emission layer (6) transverse cuts becomes a plurality of arrays of 1mm spacing, and the positive and negative electrode of each described array is in parallel.
3. described ultrasonic concrete NDT is popped one's head in according to claim 1, it is characterized in that: described high-power signal receiving transducer (2) is followed successively by the second matching layer (8), transducer layer (9) and the second absorbent treatment (10) from front to back, described transducer layer (9) transverse cuts becomes a plurality of array elements (11) of 1mm spacing, each described array element (11) is drawn respectively signal core line, the ground line parallel of each described array element (11).
4. described high-power signal receiving transducer according to claim 1, it is characterized in that: described the first matching layer (5) and described the second matching layer (8) all adopt aluminum alloy materials, and the acoustic impedance of aluminium alloy is 15 * 10
6Kg/(m
2S).
5. described high-power signal transmitting probe according to claim 1, it is characterized in that: described emission layer (6) adopts piezoelectric ceramics, and described emission layer (6) is comprised of 64-128 described array.
6. described high-power signal transmitting probe according to claim 1, it is characterized in that: described transducer layer (9) adopts piezoelectric ceramics, and described transducer layer (9) is comprised of 64-128 described array element (11).
7. described high-power signal transmitting probe according to claim 1, it is characterized in that: described the first absorbent treatment (7) and described the second absorbent treatment (10) are the sound sucting ring epoxy resins.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103227893A CN102866206A (en) | 2012-09-04 | 2012-09-04 | Ultrasonic concrete detection probe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103227893A CN102866206A (en) | 2012-09-04 | 2012-09-04 | Ultrasonic concrete detection probe |
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| CN102866206A true CN102866206A (en) | 2013-01-09 |
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| CN2012103227893A Pending CN102866206A (en) | 2012-09-04 | 2012-09-04 | Ultrasonic concrete detection probe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278570A (en) * | 2013-06-13 | 2013-09-04 | 江苏大学 | Ultrasonic linear phased array transducer for detecting metallic material and manufacturing method |
| CN103472130A (en) * | 2013-09-10 | 2013-12-25 | 河海大学 | Piezoelectric ceramic sensitive module and hydraulic concrete structure health monitoring test platform |
| CN106325183A (en) * | 2016-08-23 | 2017-01-11 | 商丘师范学院 | Remote monitoring system for state-of-health of civil engineering structure |
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| JP2011242332A (en) * | 2010-05-20 | 2011-12-01 | Nippon Telegr & Teleph Corp <Ntt> | Ultrasonic nondestructive measurement method, ultrasonic nondestructive measurement instrument, and program |
| CN102590343A (en) * | 2012-02-23 | 2012-07-18 | 河海大学常州校区 | Device and method for ultrasonically inspecting grouting compactness of corrugated pipe duct |
| CN202939159U (en) * | 2012-09-04 | 2013-05-15 | 无锡市兰辉超声电子设备厂 | Ultrasonic concrete detector probe |
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2012
- 2012-09-04 CN CN2012103227893A patent/CN102866206A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011242332A (en) * | 2010-05-20 | 2011-12-01 | Nippon Telegr & Teleph Corp <Ntt> | Ultrasonic nondestructive measurement method, ultrasonic nondestructive measurement instrument, and program |
| CN102590343A (en) * | 2012-02-23 | 2012-07-18 | 河海大学常州校区 | Device and method for ultrasonically inspecting grouting compactness of corrugated pipe duct |
| CN202939159U (en) * | 2012-09-04 | 2013-05-15 | 无锡市兰辉超声电子设备厂 | Ultrasonic concrete detector probe |
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| 戚秀真: "混凝土超声无损检测层析成像技术研究", 《中国优秀博硕士学位论文全文数据库（硕士）工程科技II辑》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278570A (en) * | 2013-06-13 | 2013-09-04 | 江苏大学 | Ultrasonic linear phased array transducer for detecting metallic material and manufacturing method |
| CN103472130A (en) * | 2013-09-10 | 2013-12-25 | 河海大学 | Piezoelectric ceramic sensitive module and hydraulic concrete structure health monitoring test platform |
| CN106325183A (en) * | 2016-08-23 | 2017-01-11 | 商丘师范学院 | Remote monitoring system for state-of-health of civil engineering structure |
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Application publication date: 20130109 |