CN106707331A - Mining seismometer - Google Patents
Mining seismometer Download PDFInfo
- Publication number
- CN106707331A CN106707331A CN201611136601.0A CN201611136601A CN106707331A CN 106707331 A CN106707331 A CN 106707331A CN 201611136601 A CN201611136601 A CN 201611136601A CN 106707331 A CN106707331 A CN 106707331A
- Authority
- CN
- China
- Prior art keywords
- coil
- mining
- geophone
- magnetic
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
- G01V1/181—Geophones
- G01V1/183—Geophones with moving magnet
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a mining seismometer which comprises a sensor unit, an electronic circuit unit and a cylindrical housing, wherein the sensor unit and the electronic circuit unit are fixed in the cylindrical housing; the sensor unit comprises a bracket, a coil, a magnetic body and a seismometer seat; the bracket is fixed on the seismometer seat; the coil is fixed on the bracket of the seismometer, and the bottom of the coil is connected with the seismometer seat; the magnetic body is located in the middle of the coil, and two ends of the magnetic body are connected with the bracket through cross leaf springs separately; the electronic circuit unit comprises a low-noise voltage stabilizing chip, an active filter and an operational amplifier chip; and the coil is sequentially connected with the low-noise voltage stabilizing chip, the active filter and the operational amplifier chip. The mining seismometer is wide in receiving frequency band and small in monitoring environmental limit.
Description
Technical field
The present invention relates to a kind of mining geophone, especially a kind of mining geophone for the detection of colliery focus.
Background technology
Moving-coil type geophone is one of sensor for more commonly using, is a kind of dress for converting mechanical energy into electric energy
Put, its composition includes：Housing, spring support, coil, magnetic, amplifier, power supply etc. are constituted.Shake is picked up currently used in ore deposit
Device has following two：
1. the relatively low inductor of receives frequency, such as the geophone of earthquake monitoring, this class geophone, primary recipient
The source signal in a distant place, reception focus frequency is relatively low, typically several hertz to several hertz scopes of zero point.
2. the higher inductor of receives frequency, such as the geophone of geophysical exploration, focus to geophone it
Between distance relatively enter, typically within hundred kilometers, focus frequency relatively enrich, high frequency is to tens hertz.
Two kinds of geophones receive that frequency band is narrow, and the spectrum component of focus extremely enriches, therefore monitoring of environmental office
Limit is big.
The content of the invention
The technical problems to be solved by the invention are to overcome prior art defect, there is provided one kind overcomes existing geophone to connect
Receive the mining geophone that frequency band is narrow, monitoring of environmental limitation is big.
In order to solve the above-mentioned technical problem, the mining geophone that the present invention is provided, including sensor unit, electronic circuit list
Unit, cylindrical shell, the sensor unit are fixed in cylindrical shell with electronic circuit cell；The sensor unit bag
Include support, coil, magnetic, geophone seat, coil former；The support is fixed on geophone seat, and the coil is fixed on and picks up
The support of device is shaken, coil bottom is connected with geophone seat；The magnetic is located in the middle of coil, and the two ends of magnetic pass through respectively
Cross-leaf spring is connected with support；The electronic circuit cell includes low noise voltage stabilizing chip, active filter, operational amplifier core
Piece；The coil is sequentially connected with low noise voltage stabilizing chip, active filter, operational amplifier chip.
Used as improvement, the support is nonmetallic materials.
Used as improvement, the magnetic is cylindrical shape, is highly 10mm, and magnetic is highly three points of coil height
One of, 1 millimeter of the gap of magnetic outer ring and coil, the distance between magnetic and cross-leaf spring are 10mm.
Used as improvement, the cross-leaf spring is stamped to form with the thick spring steel plates of 0.3mm.
Used as improvement, the diameter 42mm of the cylindrical shell is highly 110mm.
Used as improvement, the coil former is processed by polytetrafluoro material, and coil former wall thickness is 1mm, and internal diameter is 12mm, line
Ring box is flat around 2000 circles by the enamel-covered wire of line footpath 0.1mm.
Used as improvement, the gain of the low noise sound chip is controlled at 2 times.
Used as improvement, the cut-off frequency of the low-frequency compensation of the active power filtering piece is in 1 hertz, the cut-off frequency of high frequency compensation
At 300 hertz.
The beneficial effects of the present invention are：The cross-leaf spring of the sensor unit of mining geophone coordinates magnetic weight to produce
Raw 5 hertz of a resonance point；The coil of sensor unit belongs to the part of inductive nature, the coiling distribution capacity shape with its own
Into resonant tank, there is 400 hertz of intrinsic frequency.Low noise voltage stabilizing chip, active filter, operational amplifier chip can press down
Resonance point and resonance point that sensor unit processed is produced, make mining geophone of the invention receives the non-constant width of frequency band, monitors ring
Border limitation is small.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
Invention is elaborated below in conjunction with accompanying drawing.
As shown in figure 1, mining geophone of the invention, including sensor unit, electronic circuit cell, cylindrical shell, institute
Sensor unit is stated to be fixed in cylindrical shell with electronic circuit cell；The diameter 42mm of the cylindrical shell, be highly
110mm。
The sensor unit includes support 1, coil 2, magnetic 3, geophone seat 4, coil former 5；The support 1 is non-
Metal material, support 1 is fixed on geophone seat 4, and the coil 2 is fixed on the support 1 of geophone, the bottom of coil 2 with pick up shake
Device seat 4 is connected；The magnetic 3 is cylindrical shape, is highly 10mm, the height of magnetic 3 for the height of coil 2 three/
One, 1 millimeter of the gap of the outer ring of magnetic 3 and coil 2, the two ends of magnetic 3 are connected by cross-leaf spring 6 with support 1 respectively, magnetic
Distance between the 6 of gonosome 3 and cross-leaf spring is 10mm；The magnetic 3 is located in the middle of coil 2, can only be moved up and down, mobile model
5 millimeters are enclosed, the coordinate magnet quality of cross-leaf spring 6 produces 5 hertz of a resonance point；The thick springs of 0.3mm of the cross-leaf spring 6
Steel disc is stamped to form；The coil former 5 is processed by polytetrafluoro material, and the wall thickness of coil former 5 is 1mm, and internal diameter is 12mm, coil
Frame 5 is flat around 2000 circles by the enamel-covered wire of line footpath 0.1mm；The coil 2 belongs to the part of inductive nature, the coiling with its own point
Cloth electric capacity forms resonant tank, there is 400 hertz of intrinsic frequency；The electronic circuit cell includes low noise voltage stabilizing chip, has
Source filter, operational amplifier chip；The coil 2 and low noise voltage stabilizing chip, active filter, operational amplifier chip according to
Secondary connection；The gain of the low noise sound chip is controlled at 2 times；The cut-off frequency of the low-frequency compensation of the active power filtering piece is at 1 hertz
Hereby, the cut-off frequency of high frequency compensation is at 300 hertz.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made on the premise of inventive principle is not departed from, these improvement also should be regarded as guarantor of the invention
Shield scope.
Claims (8)
1. a kind of mining geophone, including sensor unit, electronic circuit cell, cylindrical shell, the sensor unit with
Electronic circuit cell is fixed in cylindrical shell；The sensor unit includes support（1）, coil（2）, magnetic（3）, pick up
Shake device seat（4）, coil former（5）, it is characterised in that：The support（1）It is fixed on geophone seat（4）On, the coil（2）It is fixed
In the support of geophone（1）, coil（2）Bottom and geophone seat（4）Connection；The magnetic（3）Positioned at coil（2）Centre,
Magnetic（3）Two ends respectively pass through cross-leaf spring（6）With support（1）Connection；The electronic circuit cell includes that low noise is steady
Pressure chip, active filter, operational amplifier chip；The coil（2）With low noise voltage stabilizing chip, active filter, computing
Amplifier chip is sequentially connected.
2. mining geophone according to claim 1, it is characterised in that：The support（1）It is nonmetallic materials.
3. mining geophone according to claim 1, it is characterised in that：The magnetic（3）It is cylindrical shape, height
It is 10mm, magnetic（3）Highly it is coil（2）/ 3rd of height, magnetic（3）Outer ring and coil（2）The milli of gap 1
Rice, magnetic（3）With cross-leaf spring（6）The distance between be 10mm.
4. mining geophone according to claim 1, it is characterised in that：The cross-leaf spring（6）With the thick springs of 0.3mm
Steel disc is stamped to form.
5. mining geophone according to claim 1, it is characterised in that：The diameter 42mm of the cylindrical shell, height
It is 110mm.
6. mining geophone according to claim 1, it is characterised in that：The coil former（5）Processed by polytetrafluoro material
Form, coil former（5）Wall thickness is 1mm, and internal diameter is 12mm, coil former（5）It is flat around 2000 circles by the enamel-covered wire of line footpath 0.1mm.
7. mining geophone according to claim 1, it is characterised in that：The gain of the low noise sound chip is controlled at 2 times.
8. mining geophone according to claim 1, it is characterised in that：The cut-off of the low-frequency compensation of the active power filtering piece
, at 1 hertz, the cut-off frequency of high frequency compensation is at 300 hertz for frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136601.0A CN106707331A (en) | 2016-12-12 | 2016-12-12 | Mining seismometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611136601.0A CN106707331A (en) | 2016-12-12 | 2016-12-12 | Mining seismometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106707331A true CN106707331A (en) | 2017-05-24 |
Family
ID=58936664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611136601.0A Pending CN106707331A (en) | 2016-12-12 | 2016-12-12 | Mining seismometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106707331A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100027380A1 (en) * | 2007-08-10 | 2010-02-04 | Joseph Samuelson | Sensor unit having a directional aperture |
| CN202171648U (en) * | 2011-07-29 | 2012-03-21 | 中国地震局地球物理研究所 | Low noise induction type magnetic sensor |
| CN104811147A (en) * | 2015-04-22 | 2015-07-29 | 吉林大学 | Optimized circuit of analog conditioning unit in underground micro seismic data acquisition system |
| CN205404830U (en) * | 2016-03-01 | 2016-07-27 | 保定永诚天峰物探设备制造有限公司 | Dynamic balance formula wide band vibrations wave detector |
-
2016
- 2016-12-12 CN CN201611136601.0A patent/CN106707331A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100027380A1 (en) * | 2007-08-10 | 2010-02-04 | Joseph Samuelson | Sensor unit having a directional aperture |
| CN202171648U (en) * | 2011-07-29 | 2012-03-21 | 中国地震局地球物理研究所 | Low noise induction type magnetic sensor |
| CN104811147A (en) * | 2015-04-22 | 2015-07-29 | 吉林大学 | Optimized circuit of analog conditioning unit in underground micro seismic data acquisition system |
| CN205404830U (en) * | 2016-03-01 | 2016-07-27 | 保定永诚天峰物探设备制造有限公司 | Dynamic balance formula wide band vibrations wave detector |
Non-Patent Citations (1)
| Title |
|---|
| 窦林名，等: "煤矿冲击矿压动静载叠加原理及其防治", 《煤炭学报》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |