CN205749924U - Low frequency, big damping, high sensitivity geophone - Google Patents
Low frequency, big damping, high sensitivity geophone Download PDFInfo
- Publication number
- CN205749924U CN205749924U CN201620417620.XU CN201620417620U CN205749924U CN 205749924 U CN205749924 U CN 205749924U CN 201620417620 U CN201620417620 U CN 201620417620U CN 205749924 U CN205749924 U CN 205749924U
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- Prior art keywords
- geophone
- low frequency
- high sensitivity
- coil
- damping
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- 238000013016 damping Methods 0.000 title claims abstract description 25
- 230000035945 sensitivity Effects 0.000 title claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
Abstract
This utility model belongs to sensor field, it is specifically related to a kind of low frequency, big damping, high sensitivity geophone, including housing, magnetic circuit system and coasting body system, housing is provided with two lead terminals, magnetic circuit system and coasting body system and is installed on enclosure interior；Magnetic circuit system includes magnet steel, upper magnetic boots and lower magnetic boots；Upper magnetic boots and lower magnetic boots are respectively arranged in the two ends up and down of magnet steel；Coasting body system includes coil windings, the upper spring leaf being connected with upper magnetic boots and the lower spring sheet being connected with lower magnetic boots；Coil windings is wound on outside magnetic circuit system by upper spring leaf and lower spring sheet；Coil windings includes signal transmssion line circle and damping coil, and two leading-out terminals of signal transmssion line circle are connected with two lead terminals on housing respectively, and damping coil is in the short circuit of coasting body internal system；The frequency of this utility model geophone is 3Hz, and the damped coefficient of geophone is 4～25, and the sensitivity of geophone is 150～300.
Description
Technical field
This utility model belongs to sensor field, is specifically related to a kind of low frequency, big damping, high-sensitivity earthquake
Cymoscope.
Background technology
Seismic prospecting is one of the most the most frequently used oil exploration method, and its ultimate principle is to utilize artificially
Shake produces vibration signal in the earth formation, requires in the local placement sensor that distance shot point is different according to design
(i.e. geophone) receives vibration signal, then the vibration signal received is processed, is explained,
The attribute on information analysis different depth stratum, the forms etc. of structure such as frequency according to signal, amplitude, speed,
Thus tentatively determine whether possess oil generation, oil storage condition, the well location of probing is finally provided.
After investigation and prospecting for many years, some bury shallower, Superficial Geologic Condition and simply construct oil field
Mostly have been observed that, be all that some bury relatively deep, complicated geologic conditions for the people to find now
Little structure oil field, this just requires increase depth of exploration and improve precision and the resolution of exploration.Along with high accuracy
The raising of oil-gas exploration technology requirement and the increase of oil-gas exploration complexity, geophysical prospecting technology oil-gas exploration to be
Thering is provided higher precision and subsurface deposit information more accurately with oil field development, this just requires to adopt at geological data
The geophone used during collection possesses the ability detecting fainter subsurface information.But, existingly
The shake universal sensitivity of cymoscope is relatively low, it is impossible to meet the needs of high precision seismic exploration.
Summary of the invention
This utility model purpose is to provide a kind of New Type Seismic Geophone, solves existing geophone because of spirit
Sensitivity is low and cannot meet the technical problem of high precision seismic exploration needs.
Technical solution of the present utility model is: the high sensitivity geophone provided, including housing,
Magnetic circuit system and coasting body system, described housing is provided with lead terminal, described magnetic circuit system and coasting body
System is installed on enclosure interior；It is characterized in that described magnetic circuit system include magnet steel, upper magnetic boots and under
Magnetic boots；Described upper magnetic boots and lower magnetic boots are respectively arranged in the two ends up and down of magnet steel；Described coasting body system includes
Coil windings, the upper spring leaf being connected with upper magnetic boots and the lower spring sheet being connected with lower magnetic boots；Described coil around
Group is wound on outside magnetic circuit system by upper spring leaf and lower spring sheet；Described coil windings includes signal transmssion line
Circle and damping coil, two leading-out terminals of signal transmssion line circle are connected with two lead terminals on housing respectively,
Damping coil is in the short circuit of coasting body internal system；The frequency of described geophone is 3Hz, geophone
Damped coefficient be 4～25, the sensitivity of geophone is 150～300.This geophone has low
Frequently, big damping, highly sensitive feature, high precision seismic exploration can be met.
Above-mentioned cymoscope also includes coil rack；Described coil rack be installed on spring leaf and lower spring sheet it
Between, coil windings is wound on coil rack, can carry out installation and the replacing of coil windings easily.
Above-mentioned housing is the hollow cylinder being provided with top cover and bottom, and surface area is big, and uniform force, installation makes
With convenient.
The diameter of above-mentioned housing is more than 42mm, and length is more than 42mm.
Above-mentioned magnet steel is cylindrical, convenient processing, produces field homogeneity.
The diameter of above-mentioned magnet steel is more than 31mm, and length is more than 8mm, is conducive to increasing working clearance magnetic strength
Answer intensity, improve sensitivity and damped coefficient.
Above-mentioned upper spring leaf and lower spring sheet muscle meet angle more than 110 °, width is more than 0.8mm, length
More than 28mm, amplitude of deformation is high.
Above-mentioned top cover internal symmetry is provided with two limited posts, can limit the rotation of coil windings, make line
Circle winding is effectively protected.
Being provided with two grooves adapted with limited post on above-mentioned coil rack, described limited post can be at groove
Interior rotation, the rotation to bobbin serves restriction effect, will not make lead-in wire spring wrap together.
It is provided with two binding posts on above-mentioned coil rack, binding post is provided with lead-in wire spring；Coil windings
Two leading-out terminals all by binding post with lead-in wire spring be connected with lead terminal, formation signal output channels.
The utility model has the advantage of:
(1) this utility model arranges magnetic circuit system and the coasting body system structure of uniqueness, has low frequency, hinders greatly
Buddhist nun, highly sensitive feature, cymoscope frequency acceptance band width, output signal is strong, is suitable for high precision seismic and surveys
Visit.
(2) magnetic circuit system integral diameter of the present utility model is more than 31mm, is conducive to increasing the working clearance
Magnetic induction, improves sensitivity and damped coefficient.
Accompanying drawing explanation
Fig. 1 is the section of structure of this utility model preferred embodiment；
Fig. 2 is amplitude-frequency response of the present utility model；
Fig. 3 is phase-frequency response curve of the present utility model.
Detailed description of the invention
Seeing Fig. 1, the structure of preferred embodiment of the present utility model includes housing, magnetic circuit system and coasting body
System, housing is provided with two lead terminals 2, magnetic circuit system and coasting body system and is installed on enclosure interior.
Magnetic circuit system includes magnet steel 7, upper magnetic boots 6 and lower magnetic boots 8；Upper magnetic boots 6 and lower magnetic boots 8 are respectively mounted
Two ends up and down in magnet steel 7.Being provided with space between magnetic circuit system and housing, this space has uniformly and stable
Toroidal magnetic field.
Coasting body system includes coil windings 9, the upper spring leaf 4 being connected with upper magnetic boots and is connected with lower magnetic boots
Lower spring sheet 10；Coil windings 9 is wound on outside magnetic circuit system by upper spring leaf 4 and lower spring sheet 10；
Two leading-out terminals of coil windings 9 are connected with two lead terminals 2 on housing respectively.Of the present utility model
Geophone arranges magnetic circuit system and the coasting body system structure of uniqueness, has low frequency, big damping, Gao Ling
The feature of sensitivity, cymoscope frequency acceptance band width, output signal is strong, is suitable for high precision seismic exploration.
The cymoscope that the present embodiment provides also includes coil rack 3；Coil rack 3 is installed on spring leaf 4
With between lower spring sheet 10, coil windings 9 is wound on coil rack 3, coil windings can be carried out easily
Installation and replacing.
Preferably, housing of the present utility model is to be provided with top cover 1 and the hollow cylinder of bottom 11, surface area
Greatly, uniform force, easy to install.The diameter of housing is more than 42mm, and length is more than 42mm.
Preferably, magnet steel 7 of the present utility model is cylindrical, and convenient processing produces field homogeneity.Magnet steel
Diameter more than 31mm, length is more than 8mm, is conducive to increasing working clearance magnetic induction, improves
Sensitivity and damped coefficient.
Preferably, upper spring leaf 4 of the present utility model and lower spring sheet 10 be satisfied by angle more than 110 °,
Width is more than 0.8mm, length more than 28mm, and amplitude of deformation is high, and (above 3 sizes refer to spring
The size of sheet every muscle).
Preferably, top cover 1 internal symmetry of the present utility model is provided with two limited posts 15, can limit
The rotation of coil windings 9, makes coil windings be effectively protected.Be additionally provided with on coil rack 3 two with
The groove that limited post 15 adapts, limited post can rotate in groove.
Preferably, coil rack 3 is provided with two binding posts 12, binding post 12 is provided with lead-in wire bullet
Spring 13；Coil windings 9 includes signal transmssion line circle and damping coil, two leading-out terminals of signal transmssion line circle
All it is connected with lead terminal 2 with lead-in wire spring 13 by binding post 12, forms signal output channels.Damping
Coil is in the short circuit of coasting body internal system.
Coil windings 9 can be moved in the axial direction, cutting annular magnetic field magnetic line produce electromotive force, coil around
Electromotive force in group 9 is exported by lead terminal 2.
This utility model geophone frequency is 3Hz, and damped coefficient is 4～25, sensitivity be 150～
300；Illustrate that this utility model has low frequency, big damping, a highly sensitive feature, cymoscope frequency acceptance band width,
Output signal is strong, is suitable for high precision seismic exploration.
Seeing Fig. 2, this utility model geophone is receiving the amplitude-frequency response song less than 80Hz vibration signal
Line, close to linear, can gather large range of low frequency signal.
See Fig. 3, this utility model geophone phase-frequency response curve phase angle ＜ 100 °.
Claims (10)
1. low frequency, big damping, a high sensitivity geophone, including housing, magnetic circuit system and inertia
System is united, and described housing is provided with two lead terminals, described magnetic circuit system and coasting body system and is installed on
Enclosure interior；It is characterized in that:
Described magnetic circuit system includes magnet steel, upper magnetic boots and lower magnetic boots；Described upper magnetic boots and lower magnetic boots are respectively mounted
Two ends up and down in magnet steel；
Described coasting body system includes coil windings, the upper spring leaf being connected with upper magnetic boots and is connected with lower magnetic boots
Lower spring sheet；Described coil windings is wound on outside magnetic circuit system by upper spring leaf and lower spring sheet；
Described coil windings includes signal transmssion line circle and damping coil, two leading-out terminals of signal transmssion line circle
Being connected with two lead terminals on housing respectively, damping coil is in the short circuit of coasting body internal system；
The frequency of described geophone is 3Hz, and the damped coefficient of geophone is 4～25, and earthquake is examined
The sensitivity of ripple device is 150～300.
Low frequency the most according to claim 1, big damping, high sensitivity geophone, its feature exists
In: described cymoscope also includes coil rack；Described coil rack be installed on spring leaf and lower spring sheet it
Between, coil windings is wound on coil rack.
Low frequency the most according to claim 1 and 2, big damping, high sensitivity geophone, it is special
Levy and be: described housing is the hollow cylinder being provided with top cover and bottom.
Low frequency the most according to claim 3, big damping, high sensitivity geophone, its feature exists
In: the diameter of described housing is more than 42mm, and the length of housing is more than 42mm.
Low frequency the most according to claim 4, big damping, high sensitivity geophone, its feature exists
In: described magnet steel is cylindrical.
Low frequency the most according to claim 5, big damping, high sensitivity geophone, its feature exists
In: the diameter of described magnet steel is more than 31mm, and the length of magnet steel is more than 8mm.
Low frequency the most according to claim 6, big damping, high sensitivity geophone, its feature exists
In: every muscle of described upper spring leaf and lower spring sheet meet angle more than 110 °, width more than 0.8mm,
Length is more than 28mm.
Low frequency the most according to claim 7, big damping, high sensitivity geophone, its feature exists
In: described top cover internal symmetry is provided with two limited posts.
Low frequency the most according to claim 8, big damping, high sensitivity geophone, its feature exists
In: being provided with two grooves adapted with limited post on described coil rack, described limited post can be at groove
Interior rotation.
Low frequency the most according to claim 9, big damping, high sensitivity geophone, its feature
It is: be provided with two binding posts on described coil rack, binding post is provided with lead-in wire spring；Coil around
Two leading-out terminals of group are all connected with lead terminal with lead-in wire spring by binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417620.XU CN205749924U (en) | 2016-05-10 | 2016-05-10 | Low frequency, big damping, high sensitivity geophone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620417620.XU CN205749924U (en) | 2016-05-10 | 2016-05-10 | Low frequency, big damping, high sensitivity geophone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749924U true CN205749924U (en) | 2016-11-30 |
Family
ID=57370940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620417620.XU Expired - Fee Related CN205749924U (en) | 2016-05-10 | 2016-05-10 | Low frequency, big damping, high sensitivity geophone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205749924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824045A (en) * | 2016-05-10 | 2016-08-03 | 西安森舍电子科技有限责任公司 | Geophone with low frequency, large damping and high sensitivity |
| CN108363094A (en) * | 2018-04-20 | 2018-08-03 | 湖北省地震局 | Rotate seismometer |
-
2016
- 2016-05-10 CN CN201620417620.XU patent/CN205749924U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105824045A (en) * | 2016-05-10 | 2016-08-03 | 西安森舍电子科技有限责任公司 | Geophone with low frequency, large damping and high sensitivity |
| CN108363094A (en) * | 2018-04-20 | 2018-08-03 | 湖北省地震局 | Rotate seismometer |
| CN108363094B (en) * | 2018-04-20 | 2023-10-10 | 湖北省地震局 | Rotary seismometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |