CN202257135U - Electromagnetic method detection transmission device of anchoring quality of anchoring rod - Google Patents
Electromagnetic method detection transmission device of anchoring quality of anchoring rod Download PDFInfo
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- CN202257135U CN202257135U CN2011203009921U CN201120300992U CN202257135U CN 202257135 U CN202257135 U CN 202257135U CN 2011203009921 U CN2011203009921 U CN 2011203009921U CN 201120300992 U CN201120300992 U CN 201120300992U CN 202257135 U CN202257135 U CN 202257135U
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Abstract
The utility model discloses an electromagnetic method detection transmission device of anchoring quality of an anchoring rod. The electromagnetic method detection transmission device mainly comprises a singlechip, a liquid crystal display unit, a keyboard, a square wave generation circuit, a drive circuit, a voltage control circuit and a constant-current source circuit, wherein a triode phase reversal amplification and complementary emitter output circuit is adopted as the drive circuit, an indirect continuous regulation type constant-current source circuit is adopted as the constant-current source circuit, the singlechip controls a square wave signal output by the timer, the square wave signal is amplified through the drive circuit and transmitted to a voltage control circuit consisting of an MOSFET (Metal Oxide Semiconductor Field Effect Transistor) switching tube; and the singlechip controls the output current signal and then the output current signal subjected to A/D conversion is transmitted to the constant-current source circuit, and a square wave signal with high frequency satiability and high current prevision is output through the constant-current source circuit. The electromagnetic method detection transmission device has the characteristics of low power consumption and small volume, and is especially suitable for electromagnetic method detection of the anchoring quality of the anchoring rod.
Description
Technical field
The utility model relates to and is used for the square-wave signal emitter with certain frequency that electromagnetic method detects, and is specifically to adopt electromagnetic method to detect the used square-wave signal transmitter of anchor rod anchored quality.
Background technology
Current, the anchor pole technology is used widely in all over the world the engineering supports such as tunnel, digging, high slope and deep basal pit, but as concealed work, its anchoring quality detection means but relatively lags behind.Present engineering
Last adopt remain destructive pull-out test, this detection means is not only taken a lot of work but also time-consuming, and the rock mass of reinforcing is also produced stronger disturbance, has reduced the reinforcement effect of anchor pole to rock mass.And domestic and international at present can't harm about anchor pole
Detect stress wave, supercritical ultrasonics technology and the supersonic guide-wave method of mainly concentrating on.
The stress wave major defect is that stress wave on the one hand is difficult to solve that reflected signal dies down even the judgement of length when disappearing; Be that on the other hand theoretical foundation is complete inadequately, can not correctly set up the relation between stress wave information and the slip casting packing, therefore be difficult to accomplish the closely knit situation of quantitative test bolt grouting.
Supercritical ultrasonics technology mainly contains three problems; The one and P phase of wave ratio; The many of difficulty are wanted in the coupling of S ripple, because the S ripple is to lean on the shearing motion of medium particle to transmit, so sensor and termination point of anchor rod must have extraordinary coupling; This has brought many troubles to practical engineering application, and sometimes can't realize at all; The 2nd, ultrasonic attenuation is serious, but because anchoring body makes that to the absorption of energy the depth measurement degree of instrument is little, in general for the reasonable anchor pole of anchoring, but the depth measurement degree is 1 ~ 2m; The 3rd, because instrument adopts the amplitude of tested anchor pole and standard anchor pole bottom reflection recently to measure anchoring quality; The Oscillation Amplitude that well-known sensor is surveyed is directly related with coupling condition; But the people's sensor installation with different all can obtain the different coupling condition; Therefore it is insecure removing to measure anchoring quality with the bottom reflection amplitude ratio of different anchor poles, so the scene is inapplicable.
The major defect of supersonic guide-wave method is that guided wave is very complicated in the propagation of rod member; Its speed changes with the variation of frequency; And on the corresponding frequency, have the guided wave of various modes, this frequency dispersion of guided wave and multi-modal characteristic make to received signal analysis and processing become difficult; And its analysis remains that reflection wave signal is the basis to receive, and do not consider the problem that reflected signal dies down even disappears.
The utility model content
The purpose of the utility model is the defective that is to above-mentioned existence, provides the anchor rod anchored quality electromagnetic method that a kind of frequency stability is high, current accuracy is high to detect emitter.
The purpose of the utility model is achieved in that a kind of anchor rod anchored quality electromagnetic method detects emitter; Comprise; Working power; Single-chip microcomputer, liquid crystal display that is connected with single-chip microcomputer and keyboard, said working power is by adopting battery-driven 24V direct supply and 5V direct supply to form; Said single-chip microcomputer is single chip computer AT 89S51; The square-wave signal output terminal of single chip computer AT 89S51 is cascade driving circuit and voltage control circuit in order; The current signal output end of single chip computer AT 89S51 is cascade D/A change-over circuit and constant-current source circuit in order;
Above-mentioned voltage control circuit structure is: the square-wave signal input end is connected to the grid of P channel MOS tube and the grid of N-channel MOS pipe; The drain electrode of the drain electrode of P channel MOS tube and N-channel MOS pipe all is connected to pull-up resistor R7 one end; The source electrode of P channel MOS tube is connected to the 24V dc power anode, the source ground of N-channel MOS pipe;
Above-mentioned constant-current source circuit structure is: the current signal input end is connected to 7 pin of operational amplifier TLC2272; 5 pin of TLC2272 and the equal ground connection of 6 pin; 1 pin serial connection capacitor C, the 7 back ground connection of TLC2272,3 pin of TLC2272 and 4 pin all are connected to the source electrode of adjustment pipe IRF630, and ground connection behind the source electrode series resistor R6 of IRF630; 2 pin of TLC2272 are connected to the grid of IRF630, and the drain electrode of IRF630 is connected to the pull-up resistor R7 other end.
Above-mentioned driving circuit structure is: be connected to triode Q1 base stage behind the pin one 8 series resistor R4 of single chip computer AT 89S51; And capacitor C 5 is parallelly connected with resistance R 4; The collector of triode Q1 is connected to the base stage of triode Q2 and the base stage of triode Q3 simultaneously; Be connected with resistance R 5 between the base stage of triode Q2 and the collector; The collector of triode Q2 connects the 24V dc power anode, and the emitter of the emitter of triode Q2 and triode Q3 all is connected to the square-wave signal input end of above-mentioned voltage control circuit, the equal ground connection of collector of triode Q1 emitter and triode Q3; The model of above-mentioned triode Q1, Q2 and Q3 is respectively 9012,9014 and 9015.
Above-mentioned D/A converting circuit structure is: 12 pin of single chip computer AT 89S51,13 pin and 14 pin are connected to 8 pin, 11 pin and 12 pin of D/A conversion chip MAX531 respectively; 4 pin of MAX531,7 pin, 8 pin and the equal ground connection of 14 pin; It is anodal that 5 pin of MAX531 and 6 pin all are connected to electrochemical capacitor C6; Electrochemical capacitor C6 minus earth, 1 pin of MAX531,2 pin and 3 pin all are connected to the 5V dc power anode, and are connected with said constant-current source circuit as current signal output end simultaneously.
The circuit structure of above-mentioned working power is: the 24V battery positive voltage is connected to triode Q4 collector; Triode Q4 base stage is connected to 8 pin of operational amplifier LM324; Triode Q4 emitter is connected to the in-phase input end of operational amplifier LM334, and the LM334 inverting input is connected to the negative pole of voltage stabilizing diode LM336, the plus earth of LM336; Be connected to 10 pin of operational amplifier behind the output terminal series resistor R8 of LM334; The emitter of triode Q4 is series resistor R9, potentiometer R10 and resistance R 11 back ground connection in order, 11 pin of the slip knee-joint operational amplifier LM324 of potentiometer R10, and 9 pin of LM324 are connected with 14 pin.
4 * 4 tactile keyboards of above-mentioned keyboard for adopting 8729 programmable keyboards/display chip to realize.
Above-mentioned liquid crystal display adopts the character mode lcd module TC1602 of 16 words * 2 to form.
This device loads steady current and sets up physical model anchor pole; Electric current and electromagnetic field when having calculated the energising anchor pole and spare anchor having occurred around the energising anchor pole distribute; Obtain rock-bolt length and anchoring quality situation and detected the functional relation between magnetic field, thereby effectively detected anchor rod anchored quality.
The utlity model has following characteristics and advantage:
1, have the frequency of operation that matches with receiver, and frequency stability is good.
2, driving circuit adopts triode anti-phase amplification, complementary emitter output circuit, and its outstanding feature is that output impedance is low.
3, adopt indirectly adjusting type constant-current source circuit continuously, this circuit has the advantages that circuit is fairly simple, current accuracy is high.
4, this transmitter have low in energy consumption, volume is little, characteristics such as light.
Description of drawings
Fig. 1 is the hardware block diagram of the utility model.
Fig. 2 is the circuit diagram of the utility model.
Fig. 3 is the circuit diagram of working power.
Embodiment
Illustrate referring to Fig. 1, Fig. 2, single-chip microcomputer adopts the AT89S5l of AT company.Square wave generation circuit is to realize the output square-wave signal by AT89S5l Single-chip Controlling timer; Amplitude is greatly about 3-5V; Consider the driving force of this signal, this signal is passed through a MOSFET to pipe (direct battery power), the square-wave signal amplitude is promoted to battery tension; Then this signal is input to constant-current source circuit, the waveform at final load two ends is exactly the square wave letter like this.Fig. 2 illustrates, and this anchor rod anchored quality electromagnetic method detects emitter, mainly by working power, and single-chip microcomputer, compositions such as liquid crystal display that is connected with single-chip microcomputer and keyboard.Working power is by adopting battery-driven 24V direct supply and 5V direct supply to form; The single-chip microcomputer model is AT89S51; The square-wave signal output terminal of single chip computer AT 89S51 is cascade driving circuit (can adopt existing other transistor drive circuit) and voltage control circuit in order; The current signal output end of single chip computer AT 89S51 is cascade D/A change-over circuit and constant-current source circuit in order;
Above-mentioned voltage control circuit structure is: the square-wave signal input end is connected to the grid of P channel MOS tube and the grid of N-channel MOS pipe; The drain electrode of the drain electrode of P channel MOS tube and N-channel MOS pipe all is connected to pull-up resistor R7 one end; The source electrode of P channel MOS tube is connected to the 24V dc power anode, the source ground of N-channel MOS pipe;
Above-mentioned constant-current source circuit structure is: the current signal input end is connected to 7 pin of operational amplifier TLC2272; 5 pin of TLC2272 and the equal ground connection of 6 pin; 1 pin serial connection capacitor C, the 7 back ground connection of TLC2272,3 pin of TLC2272 and 4 pin all are connected to the source electrode of adjustment pipe IRF630, and ground connection behind the source electrode series resistor R6 of IRF630; 2 pin of TLC2272 are connected to the grid of IRF630, and the drain electrode of IRF630 is connected to the pull-up resistor R7 other end.
Above-mentioned switch mosfet pipe is made up of (enhancement mode) P channel MOS tube and (enhancement mode) N-channel MOS pipe.Usually manage as the load pipe with P, the N pipe is made input pipe.Only need single positive voltage.It has low-power consumption, at a high speed, characteristics that antijamming capability is strong.
The basic role of constant current source is to eliminate or slacken the shadow noon of the variation of supply voltage, pull-up resistor and environment temperature to output current.
Driving circuit structure is: be connected to triode Q1 base stage behind the pin one 8 series resistor R4 of single chip computer AT 89S51; And capacitor C 5 is parallelly connected with resistance R 4; The collector of triode Q1 is connected to the base stage of triode Q2 and the base stage of triode Q3 simultaneously; Be connected with resistance R 5 between the base stage of triode Q2 and the collector; The collector of triode Q2 connects the 24V dc power anode, and the emitter of the emitter of triode Q2 and triode Q3 all is connected to the square-wave signal input end of above-mentioned voltage control circuit, the equal ground connection of collector of triode Q1 emitter and triode Q3; The model of above-mentioned triode Q1, Q2 and Q3 is respectively 9012,9014 and 9015.The D/A converting circuit structure is: 12 pin of single chip computer AT 89S51,13 pin and 14 pin are connected to 8 pin, 11 pin and 12 pin of D/A conversion chip MAX531 respectively; 4 pin of MAX531,7 pin, 8 pin and the equal ground connection of 14 pin; It is anodal that 5 pin of MAX531 and 6 pin all are connected to electrochemical capacitor C6; Electrochemical capacitor C6 minus earth, 1 pin of MAX531,2 pin and 3 pin all are connected to the 5V dc power anode, and are connected with said constant-current source circuit as current signal output end simultaneously.4 * 4 tactile keyboards of keyboard for adopting 8729 programmable keyboards/display chip to realize.Liquid crystal display adopts the character mode lcd module TC1602 of 16 words * 2 to form.
Referring to Fig. 3; The circuit structure of working power is: the 24V battery positive voltage is connected to triode Q4 collector, and triode Q4 base stage is connected to 8 pin of operational amplifier LM324, and triode Q4 emitter is connected to the in-phase input end of operational amplifier LM334; The LM334 inverting input is connected to the negative pole of voltage stabilizing diode LM336; The plus earth of LM336 is connected to 10 pin of operational amplifier behind the output terminal series resistor R8 of LM334, the emitter of triode Q4 is series resistor R9, potentiometer R10 and resistance R 11 back ground connection in order; 11 pin of the slip knee-joint operational amplifier LM324 of potentiometer R10,9 pin of LM324 are connected with 14 pin.
The transmitter part independent power source adopts storage battery power supply, and wherein the voltage range of accumulator is 24V.Except that the needs battery tension, need+5V (each chip, LCD MODULE required voltage) also, wherein+5V voltage is to be provided by the series type direct current regulation source circuit.
Reference voltage is provided by stabilivolt LM336, receives the in-phase input end of amplifying circuit.After sampled voltage and reference voltage compare, again the difference of the two is amplified.The effect of LM334 is to guarantee that LM336 has a suitable working current.The temperature characterisitic of LM336 is 20ppm/
0C satisfies the requirement of circuit design, and the scope of the input voltage V+ of LM334 is 3.5V～40V.
Claims (6)
1. an anchor rod anchored quality electromagnetic method detects emitter, comprises working power; Single-chip microcomputer; Liquid crystal display that is connected with single-chip microcomputer and keyboard is characterized in that, said working power is by adopting battery-driven 24V direct supply and 5V direct supply to form; Said single-chip microcomputer is single chip computer AT 89S51; The square-wave signal output terminal of single chip computer AT 89S51 is cascade driving circuit and voltage control circuit in order; The current signal output end of single chip computer AT 89S51 is cascade D/A change-over circuit and constant-current source circuit in order;
Above-mentioned voltage control circuit structure is: the square-wave signal input end is connected to the grid of P channel MOS tube and the grid of N-channel MOS pipe; The drain electrode of the drain electrode of P channel MOS tube and N-channel MOS pipe all is connected to pull-up resistor R7 one end; The source electrode of P channel MOS tube is connected to the 24V dc power anode, the source ground of N-channel MOS pipe;
Above-mentioned constant-current source circuit structure is: the current signal input end is connected to 7 pin of operational amplifier TLC2272; 5 pin of TLC2272 and the equal ground connection of 6 pin; 1 pin serial connection capacitor C, the 7 back ground connection of TLC2272,3 pin of TLC2272 and 4 pin all are connected to the source electrode of adjustment pipe IRF630, and ground connection behind the source electrode series resistor R6 of IRF630; 2 pin of TLC2272 are connected to the grid of IRF630, and the drain electrode of IRF630 is connected to the pull-up resistor R7 other end.
2. anchor rod anchored quality electromagnetic method according to claim 1 detects emitter; It is characterized in that; Said driving circuit structure is: be connected to triode Q1 base stage behind the pin one 8 series resistor R4 of single chip computer AT 89S51, and capacitor C 5 is parallelly connected with resistance R 4, the collector of triode Q1 is connected to the base stage of triode Q2 and the base stage of triode Q3 simultaneously; Be connected with resistance R 5 between the base stage of triode Q2 and the collector; The collector of triode Q2 connects the 24V dc power anode, and the emitter of the emitter of triode Q2 and triode Q3 all is connected to the square-wave signal input end of above-mentioned voltage control circuit, the equal ground connection of collector of triode Q1 emitter and triode Q3; The model of above-mentioned triode Q1, Q2 and Q3 is respectively 9012,9014 and 9015.
3. anchor rod anchored quality electromagnetic method according to claim 1 detects emitter; It is characterized in that; Said D/A converting circuit structure is: 12 pin of single chip computer AT 89S51,13 pin and 14 pin are connected to 8 pin, 11 pin and 12 pin of D/A conversion chip MAX531 respectively; It is anodal that 4 pin of MAX531,7 pin, 8 pin and the equal ground connection of 14 pin, 5 pin of MAX531 and 6 pin all are connected to electrochemical capacitor C6, electrochemical capacitor C6 minus earth; 1 pin of MAX531,2 pin and 3 pin all are connected to the 5V dc power anode, and are connected with said constant-current source circuit as current signal output end simultaneously.
4. detect emitter according to claim 1 or 2 or 3 described anchor rod anchored quality electromagnetic methods; It is characterized in that; The circuit structure of said working power is: the 24V battery positive voltage is connected to triode Q4 collector, and triode Q4 base stage is connected to 8 pin of operational amplifier LM324, and triode Q4 emitter is connected to the in-phase input end of operational amplifier LM334; The LM334 inverting input is connected to the negative pole of voltage stabilizing diode LM336; The plus earth of LM336 is connected to 10 pin of operational amplifier behind the output terminal series resistor R8 of LM334, the emitter of triode Q4 is series resistor R9, potentiometer R10 and resistance R 11 back ground connection in order; 11 pin of the slip knee-joint operational amplifier LM324 of potentiometer R10,9 pin of LM324 are connected with 14 pin.
5. anchor rod anchored quality electromagnetic method according to claim 4 detects emitter, it is characterized in that 4 * 4 tactile keyboards of said keyboard for adopting 8729 programmable keyboards/display chip to realize.
6. anchor rod anchored quality electromagnetic method according to claim 5 detects emitter, it is characterized in that, said liquid crystal display adopts the character mode lcd module TC1602 of 16 words * 2 to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203009921U CN202257135U (en) | 2011-08-18 | 2011-08-18 | Electromagnetic method detection transmission device of anchoring quality of anchoring rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203009921U CN202257135U (en) | 2011-08-18 | 2011-08-18 | Electromagnetic method detection transmission device of anchoring quality of anchoring rod |
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| CN202257135U true CN202257135U (en) | 2012-05-30 |
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| CN2011203009921U Expired - Lifetime CN202257135U (en) | 2011-08-18 | 2011-08-18 | Electromagnetic method detection transmission device of anchoring quality of anchoring rod |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033068A (en) * | 2015-03-18 | 2016-10-19 | 安徽惠洲地质安全研究院股份有限公司 | Rapid anchor rod anchoring quality detection method based on grounding resistance method |
| CN109001575A (en) * | 2018-08-01 | 2018-12-14 | 中国煤炭科工集团太原研究院有限公司 | A kind of import roof-bolter electrical component test device |
| CN114689695A (en) * | 2022-06-02 | 2022-07-01 | 长江水利委员会长江科学院 | Nondestructive testing analysis method for fullness of rock wall beam anchor rod |
-
2011
- 2011-08-18 CN CN2011203009921U patent/CN202257135U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106033068A (en) * | 2015-03-18 | 2016-10-19 | 安徽惠洲地质安全研究院股份有限公司 | Rapid anchor rod anchoring quality detection method based on grounding resistance method |
| CN109001575A (en) * | 2018-08-01 | 2018-12-14 | 中国煤炭科工集团太原研究院有限公司 | A kind of import roof-bolter electrical component test device |
| CN109001575B (en) * | 2018-08-01 | 2024-04-12 | 中国煤炭科工集团太原研究院有限公司 | Electric element testing device of inlet roof bolter |
| CN114689695A (en) * | 2022-06-02 | 2022-07-01 | 长江水利委员会长江科学院 | Nondestructive testing analysis method for fullness of rock wall beam anchor rod |
| CN114689695B (en) * | 2022-06-02 | 2022-08-05 | 长江水利委员会长江科学院 | Nondestructive testing analysis method for fullness of rock wall beam anchor rod |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120530 |