CN201141896Y - Loosening ring electromagnetic radiation tester - Google Patents
Loosening ring electromagnetic radiation tester Download PDFInfo
- Publication number
- CN201141896Y CN201141896Y CNU2007201279173U CN200720127917U CN201141896Y CN 201141896 Y CN201141896 Y CN 201141896Y CN U2007201279173 U CNU2007201279173 U CN U2007201279173U CN 200720127917 U CN200720127917 U CN 200720127917U CN 201141896 Y CN201141896 Y CN 201141896Y
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- heart yearn
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- antenna
- electromagnetic radiation
- circuit
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Abstract
The utility model relates to a loose area electromagnetic radiation tester. The system includes a antenna device and a monitor host computer; the antenna device is connected with the host computer and transmits the electromagnetic signal to the monitor host computer; the monitor host computer stores the measured data that reflect the dangers of disaster of the coal rock motility after amplifying the electromagnetic signal, filtering and A/D conversion; wherein, the antenna device is a capacitive broad band omnidirectional receiving antenna. The loose area electromagnetic radiation tester of the utility model can conveniently and quickly monitor the loose area of the region being tested without influence the production. Not only the production efficiency of the mine is increased, but also the safety and the scientific nature of the mine support are increased.
Description
Technical field
The present invention relates to a kind of electromagnetic radiation testing tool, particularly relate to a kind of relaxation zone electromagnetic radiation tester.
Background technology
Coal and gas are outstanding to be a kind of extremely complicated dynamic phenomenon under the coal mine, is one of major natural disasters of mine production.According to statistics, at present there are 274 pairs of projecting mines in China, and outstanding number of times every year is above ten thousand times.Along with the increase of coal mining intensity and the expansion of exploitation scale, problems such as coal and gas are outstanding, mine rock burst will be more serious.The outburst prediction forecast is the important step of outstanding control.
(Electro magnetic emission EME) is the process of outside electromagnetic radiation energy in the coal and rock stand under load deformation fracture process, and is closely related with the stand under load situation and the deformation fracture process of coal and rock in electromagnetic radiation.
At present, relaxation zone testing apparatus preferably not also though some equipment can be tested, requires highly to workman's technical merit, and test speed is slow, works that it is big to carry out difficulty, and test result is inaccurate.The rock-bolt length that adopts of mine timbering etc. can only rule of thumb be implemented thus, for safety in production has brought disaster unpredictability to a certain degree.
Summary of the invention
(1) goal of the invention
The purpose of this invention is to provide a kind of relaxation zone electromagnetic radiation tester, the representative electromagnetic signal that this equipment can be discharged under the stress field effect by synchronous or asynchronous direct monitoring different depth coal and rock, can test regional relaxation zone to be measured easily, be presented test result accurately.
(2) technical scheme
Technical purpose of the present invention is achieved in that
A kind of relaxation zone electromagnetic radiation tester, described system comprises antenna assembly and monitoring main frame, described antenna assembly is connected with the monitoring main frame, and with electromagnetic signal transmission to monitoring main frame, after described monitoring main frame carries out signal amplification, filtering, analog to digital conversion to electromagnetic signal, the test data of reflection coal rock dynamic disaster danger is stored, it is characterized in that described antenna assembly is a condenser type broadband isotropic receiving antenna.
Wherein, described condenser type broadband omnidirectional connects group antenna and is made up of shell 4, screen layer 3, retainer plate 2, antenna heart yearn 1, base 5, antenna heart yearn 1 two ends are fixed on the retainer plate 2, the heart yearn 1 outer enameled wire that twining, electric capacity is by being welded to connect in heart yearn 1 outside, the screen layer 3 of sealing wrapped up in whole heart yearn periphery sentence, screen layer 3 and shell 4 wringing fits.
Wherein, described monitoring main frame is by amplifying circuit, data acquisition circuit, single-chip microcomputer, program storage, data-carrier store, display circuit, RS232 Near Field Communication circuit, long-distance communication circuit.Composition such as keyboard control circuit and feed circuit.
(3) beneficial effect
Relaxation zone electromagnetic radiation tester of the present invention can not influence under the situation of producing, and is convenient, fast district to be measured relaxation zone is monitored.The security that has also improved mine support when improving mine production efficiency is with scientific.
Description of drawings
The hardware configuration schematic diagram of Fig. 1 embodiment of the invention;
The pre-amplification circuit schematic diagram of the figure z embodiment of the invention;
The antenna assembly mechanical construction drawing of Fig. 3 embodiment of the invention.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Hardware configuration schematic diagram of the present invention as shown in Figure 1, tester is made up of antenna and monitoring host computer, and monitoring host computer comprises that prime amplifier, low-pass filter, main amplifier, A/D converter, single-chip microcomputer, ethernet interface, storer, display and keyboard etc. partly form.Single-chip microcomputer adopts SX52BD100, this single-chip microcomputer itself has 4Kx16 position Flash storer and 262x8 position RAM, can reach IOOM IPS owing to adopt CPU parallel mode and single clock cycle instruction 100MHHz crystal oscillator to vibrate the execution speed that gives an order, the maximum feature of this network and singlechip computer is the virtual peripheral function.Ethernet interface adopts RTL8019AS, and this controller is a kind of FDX Ethernet controller that RealTeK company produces.Storer adopts 24LC256, the eprom memory of a kind of serial 32KB that this storer formula Microchip company produces.
Pre-amplification circuit schematic diagram of the present invention as shown in Figure 2, the signal that receiving antenna 1 receives is input to the A end of field effect transistor MI by the TN end through capacitor C 1, capacitor C 1 links to each other with resistance R 2 one ends with MI simultaneously, the other end of resistance R 2 links to each other with the tie point B of R3 with resistance R 1, the other end of resistance R 1 links to each other with power supply E, and the other end of resistance R 3 links to each other with ground F; The end of field effect transistor MI links to each other with power supply E, drain electrode and resistance R 4, the link C of resistance R 5 and capacitor C 2 links to each other, the other end of resistance R 4 links to each other with ground F, the other end of resistance R 5 links to each other with power supply E, the other end of capacitor C 2 and resistance R 6, the tie point D of the positive input terminal of R7 and THS4001 amplifier AIA links to each other, the other end of resistance R 6 links to each other with power supply E, the other end of resistance R 7 links to each other with ground F, the negative input end of THS4001 amplifier AIA links to each other with the tie point J of R9 with resistance R 8, the other end of resistance R 8 and capacitor C 3, the tie point G of resistance R 11 and R12 links to each other, the other end of capacitor C 3 links to each other with ground F, the other end of resistance R 11 links to each other with the positive input terminal of amplifier A2A and the tie point I of capacitor C 5, the other end of resistance R 12 links to each other with the negative input end of THS4001 amplifier A2A and the tie point K of resistance R 13, and the other end of resistance R 13 links to each other with the output terminal OUT of THS4001 amplifier A2A; The other end of resistance R 9 links to each other with the output terminal tie point H of resistance R IO and amplifier AIA, and the output terminal of amplifier AIA is received on the ground F through capacitor C 4, and the other end of resistance R IO is connected with capacitor C 5.
Antenna assembly mechanical construction drawing of the present invention as shown in Figure 3.Relaxation zone electromagnetic radiation tester adopts condenser type boring antenna, it adopts omnidirectional's technical monitoring, the ELECTROMAGNETIC RADIATION SIGNATURE of sending in 5 meters of the main test coal petrographys, relaxation zone electromagnetic radiation tester mainly is made up of 5 parts: shell 4, screen layer 3, retainer plate 2, antenna heart yearn 1, base 5.Inner most antenna heart yearn two ends are fixed on the retainer plate, and heart yearn is twining enameled wire outward, and electric capacity is by being welded to connect in the heart yearn outside, and whole heart yearn periphery is wrapped in the screen layer of sealing, screen layer and shell wringing fit.
Claims (3)
1, a kind of relaxation zone electromagnetic radiation tester, it is characterized in that, described system comprises antenna assembly and monitoring main frame, described antenna assembly is connected with the monitoring main frame, and with electromagnetic signal transmission to monitoring main frame, after described monitoring main frame carries out signal amplification, filtering, analog to digital conversion to electromagnetic signal, the test data of reflection coal rock dynamic disaster danger is stored, it is characterized in that described antenna assembly is a condenser type broadband isotropic receiving antenna.
2, monitoring system as claimed in claim 1, it is characterized in that described condenser type broadband isotropic receiving antenna is made up of shell [4], screen layer [3], retainer plate [2], antenna heart yearn [1], base [5], antenna heart yearn [1] two ends are fixed on the retainer plate [2], the outer enameled wire that twining of heart yearn [1], electric capacity is by being welded to connect in heart yearn [1] outside, whole heart yearn periphery is wrapped in the screen layer [3] of sealing, and screen layer [3] closely cooperates with shell [4].
3, supervisory system as claimed in claim 1 or 2 is characterized in that described monitoring main frame is made up of amplifying circuit, data acquisition circuit, single-chip microcomputer, program storage, data-carrier store, display circuit, RS232 Near Field Communication circuit, long-distance communication circuit, keyboard control circuit and feed circuit etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201279173U CN201141896Y (en) | 2007-08-01 | 2007-08-01 | Loosening ring electromagnetic radiation tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201279173U CN201141896Y (en) | 2007-08-01 | 2007-08-01 | Loosening ring electromagnetic radiation tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201141896Y true CN201141896Y (en) | 2008-10-29 |
Family
ID=40069607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201279173U Expired - Lifetime CN201141896Y (en) | 2007-08-01 | 2007-08-01 | Loosening ring electromagnetic radiation tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201141896Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375095A (en) * | 2010-08-26 | 2012-03-14 | 中国移动通信集团公司 | Electromagnetic radiation monitoring method, device and system |
| CN104155530A (en) * | 2014-07-22 | 2014-11-19 | 北京工业大学 | Broadband multifunctional portable electromagnetic radiation detecting device |
| CN105004933A (en) * | 2015-08-11 | 2015-10-28 | 王佳莺 | Monitoring and analysis device of urban electromagnetic radiation |
| CN106054266A (en) * | 2016-05-26 | 2016-10-26 | 辽宁工程技术大学 | Device and method for acquisition and processing of rock electromagnetic radiation signal |
| CN108020263A (en) * | 2017-11-21 | 2018-05-11 | 桂林理工大学 | A kind of precarious rock mass monitoring method based on wireless signal |
-
2007
- 2007-08-01 CN CNU2007201279173U patent/CN201141896Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375095A (en) * | 2010-08-26 | 2012-03-14 | 中国移动通信集团公司 | Electromagnetic radiation monitoring method, device and system |
| CN104155530A (en) * | 2014-07-22 | 2014-11-19 | 北京工业大学 | Broadband multifunctional portable electromagnetic radiation detecting device |
| CN105004933A (en) * | 2015-08-11 | 2015-10-28 | 王佳莺 | Monitoring and analysis device of urban electromagnetic radiation |
| CN106054266A (en) * | 2016-05-26 | 2016-10-26 | 辽宁工程技术大学 | Device and method for acquisition and processing of rock electromagnetic radiation signal |
| CN108020263A (en) * | 2017-11-21 | 2018-05-11 | 桂林理工大学 | A kind of precarious rock mass monitoring method based on wireless signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081029 |