CN207586438U - Moving-coil type 5Hz geophones - Google Patents
Moving-coil type 5Hz geophones Download PDFInfo
- Publication number
- CN207586438U CN207586438U CN201721466602.1U CN201721466602U CN207586438U CN 207586438 U CN207586438 U CN 207586438U CN 201721466602 U CN201721466602 U CN 201721466602U CN 207586438 U CN207586438 U CN 207586438U
- Authority
- CN
- China
- Prior art keywords
- coil
- magnetic
- spring leaf
- magnet
- magnetic boots
- 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.)
- Active
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses a kind of moving-coil type 5Hz geophones, including insulator, head cover, coil, shell, bottom cover, lower contact chip, clamp spring, magnetic boots, magnet, temperature-compensating ring, insulation spacer, spring leaf, flat shim and sealing ring；The inner ring radius of spring leaf and spring leaf outer shroud radius ratio R1: R2=0.62；Ring framework of reaching the standard grade is equipped with upper lightening grooves, lower lightening grooves is equipped on offline ring framework, the width of upper and lower lightening grooves is than L1: L2=2.5；Draw ratio H2: D=0.4 of magnet, the height of magnet is with the height in magnetic boots magnetic conduction face than H2: H1=1.07, and the height in magnetic boots upper edge and magnetic boots magnetic conduction face is than H3: H1=0.21.The intrinsic natural frequency of moving-coil type 5Hz geophones described in the utility model is low, output sensitivity is high, indicator consilience is good, inclination angle is big, harmonic distortion is low, reliability and durability.
Description
Technical field
The utility model is related to a kind of geophone more particularly to a kind of velocity profile moving-coil type 5Hz high-performance seismic waves
Sensor is acquired, belongs to geophone technical field.
Background technology
As geophysical exploration technology develops, deep layer, wideband high-resolution exploration become industry development trend, with low
The promotion of frequency excitation technique, low frequency reception sensor become geophysics industry active demand.
Road seismic reflection signals where common seismic road is a string of detector array records, are more different location wave detectors
Receive the stack result of signal.String suppresses environmental noise and relevant noise by more detector arrays, prominent simultaneously
Signal can improve signal-to-noise ratio.But conventional wave detector is acquired since single acceleration geophone parameter is inconsistent, single wave detector institute
Different in surface conditions and couple state, more wave detectors superpositions, which export, on string is also easy to produce larger distortion, target zone details because
It is superimposed and is destroyed, the distortion of firsthand information causes the processing of later stage data to lack flexibility, and what single wave detector of single track received is
Initial data, can a greater degree of fine description subterranean strata attribute.Single track list, which is only received, just needs single wave detector to exist
Different frequency bands have enough sensitivity, to widen response band, obtain higher signal-to-noise ratio.
In field acquisition, for complicated landform, it is difficult to realize wave detector embedding to horizontal, just, directly, geophone bigger
Work inclination angle while data quality is ensured for seismic field crew reduce be laid with arrangement workload, reduce earthquake and survey
The invisible cost of spy.
Utility model content
The purpose of this utility model is that：In view of the above problems, a kind of moving-coil type low frequency high-performance 5Hz is provided
Wave detector is shaken, has a lower frequency, the response sensitivity in higher wider frequency range, the work inclination angle of bigger solves
Certainly more than problem.
What the technical solution of the utility model was realized in：A kind of moving-coil type 5Hz geophones, including insulator,
Head cover, coil, shell, bottom cover, lower contact chip, clamp spring, magnetic boots, magnet, temperature-compensating ring, insulation spacer, spring leaf, flat shim
And sealing ring；For temperature-compensating ring set on magnet, upper and lower two magnetic boots are located at magnet upper and lower ends, and magnetic is formed with the shell of periphery
Circuit, bottom cover and head cover are pressed in shell both ends by sealing ring envelope, and coil is located in magnet, the magnetic gap that magnetic boots are formed with shell, line
Circle is composed, and coil is by being stuck on coil from two groups around the coil rack to opposite coil windings and aluminum
Upper and lower two spring leafs support, spring leaf are fixed on coil both ends by clamp spring；Coil is divided into coil and lower coil, corresponding line
Ring framework is divided into reach the standard grade ring framework and offline ring framework, inner ring radius and spring leaf outer shroud radius ratio R1: R2=of spring leaf
0.62；Ring framework of reaching the standard grade is equipped with upper lightening grooves, and lower lightening grooves, the width ratio of upper and lower lightening grooves are equipped on offline ring framework
L1: L2=2.5；Draw ratio H2: D=0.4 of magnet, the height of magnet and the height in magnetic boots magnetic conduction face than H2: H1=1.07,
Magnetic boots upper edge and the height in magnetic boots magnetic conduction face are than H3: H1=0.21.
One of it is preferred that, the outer diameter of geophone is 35mm.
One of it is preferred that, spring leaf is internally provided with vibration damping arm, outside the jib-length and spring leaf of vibration damping arm
Jib-length ratio=1-1.1；Shock-absorbing arms carefully locates width >=cantilever and carefully locates width.
One of it is preferred that, the upper plane of coil and the distance between plane H4 where the step surface of upper magnetic boots
The distance between=0.6-0.9mm, upper bottom surface of the upper plane of lower coil and lower magnetic boots is H6, H4: H6=0.99-1.01.
One of it is preferred that, coil windings width is with magnetic conduction face width than L: H1=1.13.
One of it is preferred that, the upper end of coil is positive wire, is fixed with upper spring leaf, upper spring leaf and flat shim
Contact, flat shim are contacted with the out-connecting contact on head cover, anode one end welding of out-connecting contact and insulator；The lower end of coil is
Negative wire is fixed with lower spring leaf, and lower spring leaf is connected with lower magnetic boots, and lower magnetic boots are connected with magnet, magnet and upper magnetic boots phase
Even, upper magnetic boots are connected with the interior contact chip of head cover, cathode one end welding of interior contact chip and insulator.
One of it is preferred that, magnet uses high-performance Ne-Fe-B material, in neodymium-iron-boron extracorporeal set dilval
Compensate ring.
The beneficial effects of the utility model：The intrinsic natural frequency of moving-coil type 5Hz geophones described in the utility model is low,
Output sensitivity is high, indicator consilience is good, inclination angle is big, harmonic distortion is low, reliability and durability；Specifically, has following advantage：
1st, resistance, damping, frequency, sensitivity parameter consistency product more of the same trade, which have, is significantly promoted；
2nd, perfect match is realized in damping, sensitivity, realizes the higher response sensitivity under optimal damping；
3rd, realize that low distortion output, the typical frequencies point distortion factor are distributed in 0.02%-0.04%, have in the range of broad frequency band
Effect improves seismic signal response dynamics range, has widened response band；
4th, it realizes under larger work inclination angle, the parameter index of wave detector is basicly stable, lowers field operation difficulty, carries
High data fidelity；
5th, product is more reliable durable, reduces use cost.
Description of the drawings
Fig. 1 is the cross-sectional view that the utility model moves geophone.
Fig. 2 is the chip architecture of the spring schematic diagram of the utility model geophone.
Fig. 3 is the utility model geophone coil and the correspondence of magnetic system.
It is marked in figure：Insulator -1, head cover -2, coil -3, shell -4, bottom cover -5, lower contact chip -6, clamp spring -7, magnetic boots -
8, magnet -9, temperature-compensating ring -10, insulation spacer -11, spring leaf -12, flat shim -13, sealing ring -14.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model technology.It should be appreciated that specific embodiment described herein is only used to
It explains the utility model, is not used to limit the utility model.
Embodiment：
As shown in Figure 1, 2, 3, a kind of moving-coil type 5Hz geophones, work inclination angle is big, reaches 15 °, each in 15 ° of inclination angles
Parameter index is without significant change, and down to 0.1%, typical case's distortion is distributed in 0.02%-0.04% for harmonic distortion, resistance, frequency,
Damping, sensitivity index consistency are good, and anti-fatigue life is long, reliability and durability, meets wideband, high-resolution exploration demand, application
The utility model moving-coil type 5Hz geophones can greatly reduce field seismometer usage quantity, easy to operate, cost significantly
It reduces.The dominant frequency of geophone described in the utility model is down to 5Hz, it exports response sensitivity and has been up to 83.2V/ during 5Hz
M/s has low frequency signal more conventional wave detector output to be higher by 16 times or more, while high-frequency signal maintains and is equivalent to 4 or more
The gain ability of conventional wave detector tandem compound.Below 5Hz low frequency response gains improve an order of magnitude, are carried for deep layer exploration
For ensureing.
Inclination angle and minimum harmonic distortion, the outer diameter of geophone described in the utility model to reach bigger are
35mm rationally increases the face source of detector spring leaf, improves the linear domain of spring leaf, as shown in Figure 2；In the design of spring leaf
On, increase the diameter of inner ring, using unique design on coil rack, as shown in Figure 3；It is extra to remove bottom end and top simultaneously
Part, and increase lightening grooves up and down, while ensureing outstanding body weight, it is ensured that the closed-loop damping that wave detector access collecting unit is formed
In optimum state.
Specifically, the basic structure of the geophone include insulator 1, head cover 2, coil 3, shell 4, bottom cover 5, under
Contact chip 6, clamp spring 7, magnetic boots 8, magnet 9, temperature-compensating ring 10, insulation spacer 11, spring leaf 12, flat shim 13 and sealing ring
14.Temperature-compensating ring 10 is sleeved on magnet 9, and upper and lower two magnetic boots 8 are located at 9 upper and lower ends of magnet, and magnetic is formed with the shell 4 of periphery
Circuit, bottom cover 5 and head cover 2 are pressed in 4 both ends of shell by 14 envelope of sealing ring.
Coil 3 is composed from two groups around the coil rack to opposite coil windings and aluminum, and coil 3 is by respectively
Two spring leafs 12 up and down being stuck on coil support, and spring leaf 12 is fixed on 3 both ends of coil by clamp spring 7.Coil 3 divides to reach the standard grade
Circle and lower coil, the distance between coil and magnet are that the distance between H5, the lower magnetic boots boss plane of lower coil is H7,
Corresponding coil rack is divided into reach the standard grade ring framework and offline ring framework；Ring framework of reaching the standard grade is equipped with upper lightening grooves, in lower coil bone
Frame is equipped with lower lightening grooves.The width of upper and lower lightening grooves is than L1: L2=2.5.Line removes bottom end and top redundance, and increases
In addition lower lightening grooves, while obtaining suitably outstanding body weight, ensure that bobbin Eddy Distribution in impulse stroke is reasonable, and with
When equipment is docked with instrument, damping is maintained at best comprehensive damping value, at the same ensure wave detector have larger work inclination angle and
Reliability.
Spring leaf has excellent impact resistance, and the utility model uses the design form of internal two vibration damping arms, when
During by strength lateral impact, two shock-absorbing arms advancements lay down most of impact force, reduce external three cantilevers and excessively become
Damage caused by the permanent deformation that shape is brought.Therefore, in the design of spring leaf, increase the diameter of inner ring, spring leaf 12 it is interior
Ring radius and spring leaf outer shroud radius ratio R1: R2=0.62；Reduce the width of two dowels of inner ring, it is linearly same to improve spring leaf
When, system mechanics vibration interference stress deformation caused by spring leaf is reduced, impact resistance is improved while lowering distortion, is obtained
Obtain better reliability.
Spring leaf 12 is internally provided with vibration damping arm, jib-length and the spring leaf exterior cantilevered arms length ratio=1- of vibration damping arm
1.1；Shock-absorbing arms carefully locates width >=cantilever and carefully locates width, and optimum state is shock-absorbing arms most thin place size as cantilever most thin place.
The utility model uses the spring leaf edge of bigger, increases effective linear work length of three cantilevers.
On electric loop, coil 3 is located in magnet 9, the magnetic gap that magnetic boots 8 are formed with shell 4, and the upper end of coil 3 is just
Pole lead is fixed with upper spring leaf, and upper spring leaf is contacted with flat shim 13, and flat shim 13 is contacted with the out-connecting contact on head cover 2,
It welds anode one end of out-connecting contact and insulator 1；The lower end of coil 3 is negative wire, is fixed with lower spring leaf, lower spring leaf
It is connected with lower magnetic boots, lower magnetic boots are connected with magnet 9, and magnet 9 is connected with upper magnetic boots, and upper magnetic boots are connected with the interior contact chip of head cover 2,
It welds cathode one end of interior contact chip and insulator.Interior contact chip by welding with the cathode of insulator one section be connected,
The positive and negative anodes of the utility model are separated positive and negative anodes by insulation spacer 11.In order to obtain the toroidal magnetic field of uniform, high magnetic flux, magnetic
Draw ratio H2: D=0.4 of body 9, the height of magnet 9 and the height in magnetic boots magnetic conduction face are than H2: H1=1.07, magnetic boots upper edge and magnetic
The height in boots magnetic conduction face is than H3: H1=0.21.Coil and the correspondence of magnetic system ensure that wave detector is damped in tilting procedure, sensitive
Degree is without significant change, and therefore, magnetic system has broader uniform magnetic field range, and coil windings width is with magnetic conduction face width than L: H1=
1.13。
In addition, the upper plane of coil and the distance between plane H4=0.6-0.9mm where the step surface of upper magnetic boots, under
The distance between upper bottom surface of the upper plane of coil and lower magnetic boots is H6, H4: H6=1.
To ensure the highly sensitive output of the utility model, this practicality magnet uses high-performance Ne-Fe-B material, surface plating
Ambrose alloy nickel, NdFeB material can export very high magnetic energy product under smaller volume, can be in the annular between magnetic boots and shell
Formed in region evenly, magnetic field that magnetic flux density is very high.In addition, the deficiency big to make up NdFeB material temperature coefficient,
The utility model is employed compensates ring structure in neodymium-iron-boron extracorporeal set dilval, is varied with temperature by compensating ring magnetism
Generation and the reversed characteristic of neodymium iron boron magnetic body, the temperature characterisitic for making up neodymium-iron-boron magnetic material is insufficient, compensates ring and magnet structure
The rational design of size makes the temperature varying coefficient of the utility model gap magnetic field reach alnico magnetic material magnetic Circuit Design
Peer-level.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (6)
1. a kind of moving-coil type 5Hz geophones, including insulator, head cover, coil, shell, bottom cover, lower contact chip, clamp spring, magnetic
Boots, magnet, temperature-compensating ring, insulation spacer, spring leaf, flat shim and sealing ring；Temperature-compensating ring set is on magnet, and upper and lower two
A magnetic boots are located at magnet upper and lower ends, and form magnetic loop, bottom cover and head cover with the shell of periphery is pressed in shell two by sealing ring envelope
End, coil is located at magnet, magnetic boots and in the magnetic gap of shell composition, coil is from two groups around the line to opposite coil windings and aluminum
Ring framework is composed, and coil is supported by two spring leafs up and down being stuck on coil, and spring leaf is fixed by clamp spring
At coil both ends；Coil is divided into coil and lower coil, and corresponding coil rack is divided into reach the standard grade ring framework and offline ring framework,
It is characterized in that：The inner ring radius of spring leaf and spring leaf outer shroud radius ratio R1: R2=0.62；Ring framework of reaching the standard grade is equipped with upper loss of weight
Slot is equipped with lower lightening grooves on offline ring framework, and the width of upper and lower lightening grooves is than L1: L2=2.5；Draw ratio H2: D of magnet
=0.4, the height of magnet and the height in magnetic boots magnetic conduction face are than H2: H1=1.07, magnetic boots upper edge and the height ratio in magnetic boots magnetic conduction face
H3: H1=0.21.
2. moving-coil type 5Hz geophones according to claim 1, it is characterised in that：The outer diameter of geophone is
35mm。
3. moving-coil type 5Hz geophones according to claim 1, it is characterised in that：Spring leaf is internally provided with vibration damping
Arm, jib-length and the spring leaf exterior cantilevered arms length ratio=1-1.1 of vibration damping arm；Shock-absorbing arms carefully locates width >=cantilever and carefully locates width
Degree.
4. moving-coil type 5Hz geophones according to claim 1, it is characterised in that：Coil windings width and magnetic conduction face
Width is than L: H1=1.13.
5. moving-coil type 5Hz geophones according to claim 1, it is characterised in that：The upper plane of coil and upper magnetic
The distance between plane H4=0.6-0.9mm where the step surface of boots, between the upper plane of lower coil and the upper bottom surface of lower magnetic boots
Distance for H6, H4: H6=0.99-1.01.
6. according to the moving-coil type 5Hz geophones any in claim 1-5, it is characterised in that：The upper end of coil is
Positive wire is fixed with upper spring leaf, and upper spring leaf is contacted with flat shim, and flat shim is contacted with the out-connecting contact on head cover, outside
It welds anode one end of contact chip and insulator；The lower end of coil is negative wire, is fixed with lower spring leaf, and lower spring leaf is under
Magnetic boots are connected, and lower magnetic boots are connected with magnet, and magnet is connected with upper magnetic boots, and upper magnetic boots are connected with the interior contact chip of head cover, interior contact
It welds cathode one end of piece and insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466602.1U CN207586438U (en) | 2017-11-06 | 2017-11-06 | Moving-coil type 5Hz geophones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466602.1U CN207586438U (en) | 2017-11-06 | 2017-11-06 | Moving-coil type 5Hz geophones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207586438U true CN207586438U (en) | 2018-07-06 |
Family
ID=62729630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721466602.1U Active CN207586438U (en) | 2017-11-06 | 2017-11-06 | Moving-coil type 5Hz geophones |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207586438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519618A (en) * | 2017-11-06 | 2018-09-11 | 四川吉赛特科技有限公司 | Moving-coil type 5Hz geophones |
-
2017
- 2017-11-06 CN CN201721466602.1U patent/CN207586438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519618A (en) * | 2017-11-06 | 2018-09-11 | 四川吉赛特科技有限公司 | Moving-coil type 5Hz geophones |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200962056Y (en) | Vibration sensor based on the magnetic levitation principle | |
| EP1314052B1 (en) | Geophone and method of manufacturing a geophone | |
| CN102023309B (en) | Maglev electromagnetic induction cymoscope | |
| CN201852944U (en) | Magnetic suspension electromagnetic induction detector | |
| CN104237934A (en) | Differential piezoelectric digital geophone | |
| US5134593A (en) | Geophone spring | |
| CN207586438U (en) | Moving-coil type 5Hz geophones | |
| CN108519618A (en) | Moving-coil type 5Hz geophones | |
| CN201780375U (en) | Seismic detection sensor | |
| CN2901341Y (en) | High resolution geophysical prospecting earthquake wave detector | |
| CN110068390A (en) | Piezoelectricity and electromagnetic coupling vibrating sensor | |
| CN208224507U (en) | A kind of composite vibrating sensor | |
| CN103048683B (en) | Magnetic-suspension wave detector | |
| CN104199085A (en) | Low-frequency detector | |
| CN107238858A (en) | A kind of velocity profile magneto-electric high sensitivity geophone | |
| CN206387915U (en) | A kind of velocity profile magneto-electric low frequency earthquake wave detector | |
| CN206975230U (en) | A kind of velocity profile magneto-electric high sensitivity geophone | |
| RU145461U1 (en) | THREE COMPONENT WELL SEISMOMETER | |
| CN202453509U (en) | Velocity type magnetoelectric seismic detector | |
| CN106019362B (en) | Moving coil type low-frequency expanded geophone | |
| CN204331047U (en) | A kind of reluctance type seismoreceiver | |
| CN101089656A (en) | Speed type magnetoelectric seis | |
| CN201780379U (en) | Geophysical exploration detection sensor | |
| CN209640509U (en) | A kind of geophone of moving-coil type shear wave high sensitivity | |
| CN207992466U (en) | High sensitivity geophone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 610000 No. 77, Binhe Road, Huayang street, Tianfu New District, Chengdu, Sichuan Co-patentee after: Beijing Sheng Da Ren Technology Development Co., Ltd. Patentee after: Sichuan Ji Saite Science and Technology Ltd. Address before: 610000 No. 77, Binhe Road, Hua Yang Street, Tianfu New District, Chengdu, Sichuan Co-patentee before: Beijing Sheng Da Ren Technology Development Co., Ltd. Patentee before: Sichuan Ji Saite Science and Technology Ltd. |
|
| CP02 | Change in the address of a patent holder |