CN109143323A - A kind of 3-component earthquake detector shell of convertible tail bone - Google Patents
A kind of 3-component earthquake detector shell of convertible tail bone Download PDFInfo
- Publication number
- CN109143323A CN109143323A CN201811296194.9A CN201811296194A CN109143323A CN 109143323 A CN109143323 A CN 109143323A CN 201811296194 A CN201811296194 A CN 201811296194A CN 109143323 A CN109143323 A CN 109143323A
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- Prior art keywords
- circuit board
- tail bone
- shell
- convertible
- earthquake detector
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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
Abstract
The invention discloses a kind of 3-component earthquake detector shells of convertible tail bone, including MEMS sensor circuit board and the shielded cable being electrically connected with the MEMS sensor circuit board, further includes: circuit board fixing rack, cylinder-like shell, upper cover, Waterproof cable joint, aviation plug and tail bone.The present disclosure provides a kind of 3-component earthquake detector shell of convertible tail bone, there are complete sealing performance and waterproof performance, and whole assembly or disassembly is convenient；Case weight is lighter, can improve the sensitivity of wave detector as far as possible；Sensor rigidly fixes mode and can farthest ensure the fidelity of vibration data, to improve seismographic performance.
Description
Technical field
The present invention relates to technology geophysical exploration and field is monitored, more particularly to a kind of convertible tail bone
3-component earthquake detector shell.
Background technique
In recent years, as rock mass construction, geothermal exploitation, ore extraction, hydraulic fracturing, oil gas extraction, water filling gas injection etc. are applied
In the extensive use of engineering field, micro-seismic monitoring and relevant technology flourish the industry that works.
When carrying out above-mentioned construction, often cause underground change of stress field, the small vibration for causing rock rupture to generate,
A part of its energy is discharged in the form of elastic wave or sound wave and is blazed abroad around, this is microseism signal.Pass through
Detector array is arranged in some regions to receive the seismic signal of micro-seismic event generation, and passes through data processing and inverting
The parameters such as specific location, moment of rupture, failure mode and the energy of rupture release of rock rupture are sought, and utilize these ginsengs
Several pairs of rock ruptures carry out geology or rock-soil mechanics is explained, then can use these parameters engineer operation is monitored,
Evaluation and guidance have become the mainstream that microseismic is applied to engineering field.
Compared with earthquake, the earthquake magnitude very little of microseism, usually between -3 grades to 1 grade of Richter scale, the frequency of microseism
For range usually between 50Hz to 1500Hz, this proposes high requirement to instrument.
Conventional microseism wave detector uses traditional moving-coil type or eddy current type shock sensor, and sensor bulk is greatly, again
Amount is big, sensitivity is low, signal-to-noise ratio is low, intrinsic frequency is low, and the application effect in micro-seismic monitoring is not ideal enough；Conventional microseism
Wave detector sheathing material is that metal casting or injection molding manufacture are easy to guarantee that sealing performance often largely uses rubber ring
The loss and deformation for causing vibration signal make originally faint microseism signal more weaken and distort, and noise is relatively low, fidelity
It spends poor.
Therefore, how to provide it is a kind of vibration signal is not influenced, good airproof performance, be applicable in the extensive 3-component earthquake of scene
The problem of wave detector shell is those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, having complete the present invention provides a kind of 3-component earthquake detector shell of convertible tail bone
Sealing performance and waterproof performance, and whole assembly or disassembly is convenient；Case weight is lighter, can improve the sensitive of wave detector as far as possible
Degree；Sensor rigidly fixes mode and can farthest ensure the fidelity of vibration data, to improve seismographic
Performance.
To achieve the goals above, the invention provides the following technical scheme:
A kind of 3-component earthquake detector shell of convertible tail bone, including MEMS sensor circuit board and with it is described
The shielded cable that MEMS sensor circuit board is electrically connected, further includes: circuit board fixing rack, cylinder-like shell, upper cover, anti-water power
Cable joint, aviation plug and tail bone；
Wherein, the MEMS sensor circuit board at least has three pieces, respectively circuit board one, circuit board two and circuit board
Three；
The circuit board fixing rack is cylindrical hollow structure, and the circuit board is installed in one end of the cylindrical hollow structure
One；Circuit board mounting groove there are two being opened up vertically in the cylindrical hollow structure side wall；The circuit board two and the circuit board
Three are separately mounted in two circuit board mounting grooves；The circuit board one, the circuit board two and three liang of the circuit board
Two is vertical；The circuit board one is laterally fixed, and the circuit board two and the circuit board three are longitudinally fixed；The shielded cable point
It is not electrically connected with the circuit board one, the circuit board two, the circuit board three；
The circuit board fixing rack is placed in the cylinder-like shell；Described in the open end upper cover of the cylinder-like shell is closed
Upper cover offers threading hole on the upper lid；The shielded cable sequentially passes through the upper cover, the Waterproof cable joint and institute
State aviation plug connection；The closed end of the cylinder-like shell is fixedly connected with the tail bone.
Through the above technical solution, technical effect of the invention: the present invention has complete sealing performance and waterproofness
Can, and whole assembly or disassembly is convenient；Case weight is lighter, can improve the sensitivity of wave detector as far as possible；The rigidity of sensor
Fixed form can farthest ensure the fidelity of vibration data, to improve seismographic performance.
Preferably, in a kind of 3-component earthquake detector shell of above-mentioned convertible tail bone, the circuit board is fixed
Mounting-positioning holes one are offered on the side wall of frame, and mounting-positioning holes two, the peace are offered on the side wall of the cylinder-like shell
It fills location hole one and the mounting-positioning holes two cooperates, carried out by holding screw surely tight.
Through the above technical solution, technical effect of the invention: circuit board fixing rack is placed in cylinder-like shell, will
Circuit board fixing rack mounting-positioning holes one are aligned with the mounting-positioning holes two of cylinder-like shell, it is made to possess public axis, and
Determined using holding screw it is tight, make between circuit board fixing rack and cylinder-like shell be in close contact and without relative displacement.
It preferably, further include being mounted on institute in a kind of 3-component earthquake detector shell of above-mentioned convertible tail bone
State the other end mounting circuit boards four of cylindrical hollow structure.
Preferably, in a kind of 3-component earthquake detector shell of above-mentioned convertible tail bone, the cylinder-like shell
Closed end be provided with tail bone mounting groove, be provided with Internal Pipe Thread on the tail bone mounting groove inner wall.
Preferably, in a kind of 3-component earthquake detector shell of above-mentioned convertible tail bone, the tail bone top
Mounting portion is provided with external pipe thread, and said inner tube screw thread is adapted with the external pipe thread.
Preferably, in a kind of 3-component earthquake detector shell of above-mentioned convertible tail bone, the tail bone include but
It is not limited to: general tail bone, plate tail bone, elongated tail bone and shallow well tail bone.
Through the above technical solution, technical effect of the invention: general tail bone, the wave detector for installing the tail bone can be set
In soft surfaces or sticky surface, ensures that wave detector is not embedded, wave detector can also be placed in hardened surface.Plate tail bone,
Wave detector can be placed in vertical hardened surface even top plate by the bending bottom plate of tail bone and fastener appropriate.Elongated tail bone,
Elongated tail bone facilitates insertion into and acquires data in soil, and the side plate of top can be treaded in wave detector compared with pan soil with auxiliary construction personnel
In earth.It is embedding that shallow well tail bone is suitable for shallow well.
Preferably, in a kind of 3-component earthquake detector shell of above-mentioned convertible tail bone, the cylinder-like shell
Open end side wall on be provided with external pipe thread, be provided with Internal Pipe Thread on the inner wall of the upper cover, the external pipe thread with
Said inner tube screw thread is adapted.
Preferably, in a kind of 3-component earthquake detector shell of above-mentioned convertible tail bone, the positioning hole
It is sealed using screw thread fastening glue.
Through the above technical solution, technical effect of the invention: the later period of positioning hole assembly uses anaerobism waterproof
Screw thread fastening glue be sealed, guarantee threaded hole at have waterproof ability.
Preferably, in a kind of 3-component earthquake detector shell of above-mentioned convertible tail bone, the circuit board is fixed
Frame, the cylinder-like shell, the upper cover are all made of aluminium alloy bars and form through numerical control machine tool cutting.
Through the above technical solution, technical effect of the invention: case weight is lighter, can improve wave detector as far as possible
Sensitivity；Sensor rigidly fixes mode and can farthest ensure the fidelity of vibration data, to improve earthquake
The performance of instrument.
Preferably, in a kind of 3-component earthquake detector shell of above-mentioned convertible tail bone, the water-proof cable is connect
Marine glue is perfused between head and the upper cover.
Through the above technical solution, technical effect of the invention: the early period of assembly by Waterproof cable joint with it is upper
Marine glue is perfused between lid to improve the waterproof ability of upper cover.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides a kind of convertible tail bones
3-component earthquake detector shell, have complete a sealing performance and waterproof performance, and whole assembly or disassembly is convenient；Shell
Lighter in weight can improve the sensitivity of wave detector as far as possible；Sensor rigidly fixes mode and can farthest ensure shake
The fidelity of dynamic data, to improve seismographic performance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is structural schematic diagram of the invention；
Fig. 2 attached drawing is one structural schematic diagram of circuit board of the invention；
Fig. 3 attached drawing is two structural schematic diagram of circuit board of the invention；
Fig. 4 attached drawing is circuit board fixing rack structural schematic diagram of the invention；
Fig. 5 attached drawing is circuit board fixing rack rearview of the invention；
Fig. 6 attached drawing is circuit board fixing rack installation diagram of the invention；
Fig. 7 attached drawing is cylinder-like shell structural schematic diagram of the invention；
Fig. 8 attached drawing is superstructure schematic diagram of the invention；
Fig. 9 attached drawing is general tail bone structural schematic diagram of the invention；.
Figure 10 attached drawing is plate tail bone structural schematic diagram of the invention；
Figure 11 attached drawing is elongated tail bone structural schematic diagram of the invention；
Figure 12 attached drawing is shallow well tail bone structural schematic diagram of the invention.
In figure: 11 circuit boards one, 12 circuit boards two, 13 circuit boards three, 14 circuit boards four, 2 circuit board fixing racks, 21 electricity
Road plate mounting groove, 22 mounting-positioning holes one, 3 cylinder-like shells, 31 mounting-positioning holes two, 32 tail bone mounting grooves, 4 upper covers, 41 are worn
String holes, 51 general tail bones, 52 plate tail bones, 53 elongated tail bones, 54 shallow well tail bones.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of 3-component earthquake detector shells of convertible tail bone, there is complete sealing
Performance and waterproof performance, and whole assembly or disassembly is convenient；Case weight is lighter, can improve the sensitivity of wave detector as far as possible；
Sensor rigidly fixes mode and can farthest ensure the fidelity of vibration data, to improve seismographic property
Energy.
The present invention provides a kind of 3-component earthquake detector shell of convertible tail bone, three pieces direction is mutually perpendicular
MEMS sensor circuit board is fixed on circuit board fixing rack 2 each by machine screw, is integrally placed at above-mentioned outside cylindrical shape
In shell 3, above-mentioned entirety and cylinder-like shell 3 are held out against by holding screw, the supply lines of sensor passes through with signal wire to be connect
Cable pass through upper cover 4 threading hole 41, Waterproof cable joint be connected with aviation plug, tighten upper cover 4, Waterproof cable joint with
After tail bone, wave detector forms a closed entirety.
MEMS sensor is carried on MEMS sensor circuit board and necessary peripheral circuit, mechanical outline are divided into circuit board one
11 and circuit board 14 round circuit board；Two kinds of rectangular circuit board of circuit board 2 12 and circuit board 3 13, round circuit board and
Rectangular circuit board is respectively used to laterally fixed and vertical fixed, circuit board surface large area covering insulation welding resistance green oil, guarantee core
Piece and circuit are not short-circuited.
Circuit board fixing rack 2 is formed by aluminium alloy bars through numerical control machine tool cutting, the reserved tightening of the promising holding screw of side wall
Hole location has reserved the fixed position of four circuit boards on bracket, and two laterally for fixed round circuit board, two vertical for fixed positions
To fixed position for fixing rectangular circuit board；Three pieces sensor circuit board point three directions on its fixed structure are fixed, and three
Direction is orthogonal, and respective direction forms one group of orthogonal basis in three-dimensional space；Every sensor circuit board all by 4 M2 ×
4 coiled hair machine screw is anchored on circuit board fixing rack 2, and contact position is to come into contact in a large area connection, rigid body connection, utmostly
Ground enhances the transmitting of mechanical oscillation and the performance of coupling.
Cylinder-like shell 3 is process by aluminium alloy bars through machine cut, is open on one side, a face closure；Cylinder-like shell 3
Bottom be closed end, be primary sealing state, have the national standard G1 Internal Pipe Thread for extending and going out for installing different tail bones；
Side wall of outer shell has 2 M3 mechanical whorl holes for being used for fixing circuit board fixed frame 2, and circuit board fixing rack 2 passes through two M3.2
12.9 grades of holding screws of two threaded holes and two pieces of M3 × 8 on the counterbore and shell of depth 4 carry out high-intensitive connection,
The pressure between internal layer fixed structure and shell is given by holding screw to be rigidly secured together the relative position between the two,
Wherein transmitting of the metal rigid body connection of large area again for vibration provides strong guarantee；Two M3 mechanical whorl holes of shell
It is sealed in the later period of assembly using the screw thread fastening glue of anaerobism waterproof, guarantees have waterproof ability at threaded hole；It is cylindric
There is the external pipe thread of national standard G1-1/8, for installing upper cover 4 on the outside of the open end of shell 3.
Upper cover 4 with outlet hole is process by aluminium alloy through numerically-controlled machine tool, and inside is Internal Pipe Thread, is used for and cylindrical shape
The open end of shell 3 cooperates, and the later period of assembly uses raw material band to guarantee sealability herein；Outside is annular knurl, makes detection
Device shell is detachable, is easy to the replacement and maintenance in wave detector later period, reduces maintenance cost and the time in seismic detector later period；Top
For 16 threading hole 41 of φ, for installing M16 specification Waterproof cable joint, early period of assembly by waterproof connector and upper cover 4 it
Between perfusion marine glue to improve the waterproof ability of upper cover 4.
Waterproof cable joint is mature industrial ready-made article, specification M16, the cable waterproof for 4~8mm of outer diameter.
Connection cables are mature industrial ready-made articles, using 0.3 square millimeter of 8 core of RVVP outdoor construction shielded cable,
Insulating materials is polyvinyl chloride mixture, and shielding braid net is 64 nets.
Aviation plug is mature industrial ready-made article, using 9 core M16 specification waterproof aviation plugs.
Tail bone is process by stainless steel through numerically-controlled machine tool and subsequent technique, with a variety of choosings for adapting to different application scene
It selects, passes through external pipe thread and 3 close-coupled of cylinder-like shell；It is connect by national standard G1 pipe screw thread with tail bone, tail bone has well
It is replaceable with customizable ability, all length in reserve are greater than 8mm and the tail bone of the national standard G1 external pipe thread less than 12mm all may be used
It is attached with wave detector ontology, in order to meet different construction environments to wave detector difference fixing means demand.
Referring to attached drawing 2 and attached drawing 3, respectively round MEMS sensor circuit board and rectangle MEMS sensor circuit board.
Circuit board fixing rack 2 is referring to attached drawing 4, attached drawing 5 and attached drawing 6.Wherein circuit board mounting groove 21 is for placing 2 pieces of rectangles
Circuit board；Being fixed on position longitudinally in each has 4 M2 machine screws holes, for fixing rectangular circuit board；Round circuit board is lateral
Position is fixed, the both ends of circuit board fixing rack 2 are each laterally to fix position and two for placing 1~2 piece of round circuit board
Longitudinally fixed position is perpendicular；There are 4 M2 machine screws holes on each laterally fixed position, for fixed round circuit board；Peace
Dress location hole 2 31 is provided on the side wall of circuit board fixing rack 2 to be adapted with mounting-positioning holes 1, and direction is vertical with two
It is set to 45° angle degree to circuit board fixed bit, and is the M3.2 counterbore that depth is 4mm.
Assembly method of the MEMS sensor circuit board on circuit board fixing rack 2 is referring to attached drawing 6, the circuit board of this wave detector
It is fixed on circuit board support by M2 machine screws, that usually selects frame bottom is transversely mounted position and mid-stent
MEMS sensor circuit board is installed in 2 longitudinally mounted positions, and the lateral position of cradle top can install the promotion of voltage regulator circuit plate
Wave detector job stability can not also be installed.When mounting circuit boards, as the MEMS sensor chip in attached drawing 3 accounts for circuit board
The percentage of area is bigger, and height is higher, due to the more fragile rapid wear of chip, when installation should avoid chip and installation tool with
And the direct collision of bracket, when assembly, should wear antistatic gloves or anti-electrostatic wrist ring, avoid electrostatic breakdown chip.
Cylinder-like shell 3 is as shown in Fig. 7.Wherein two M3 mechanical whorl holes of mounting-positioning holes 2 31 are used for and electricity
The mounting-positioning holes 1 reserved on the board mount of road match, and circuit board fixing rack 2 is tightly secured together with shell；Cylinder
The national standard G1-1/8 external pipe thread of 3 open end of shape shell, length 15mm, for installing upper cover 4；3 closed end of cylinder-like shell
32 inner wall of tail bone mounting groove national standard G1 Internal Pipe Thread, for installing disposable tail bone.
Upper cover 4 is as shown in Fig. 8.Wherein threading hole 41 is the through-hole of M16, for installing Waterproof cable joint；In upper cover 4
The national standard G1-1/8 Internal Pipe Thread of wall, for being matched with the national standard G1-1/8 external pipe thread on the outside of 3 open end of cylinder-like shell,
To play waterproofness under the premise of maintainable.
Referring to attached drawing 1, circuit board fixing rack 2 is placed in cylinder-like shell 3, mounting-positioning holes 1 and installation are positioned
Hole 2 31 is aligned, it is made to possess public axis, and it is tight to use two pieces of length to be determined for the M3 holding screw of 8mm, makes circuit
Between plate fixed frame 2 and cylinder-like shell 3 be in close contact and without relative displacement, then wrap cylinder-like shell 3 using raw material band
Open end external pipe thread, enough waterproof sealing silicone grease are smeared on the outside of raw material band, Waterproof cable joint is installed on threading
On hole 41, and it is connected on three pieces MEMS sensor circuit board using 8 core, 0.3 square millimeter of RVVP outdoor construction shielded cable,
Cable is pierced by from upper cover 4 shown in Fig. 8 by threading hole 41 and Waterproof cable joint, by 4 inner wall of upper cover Internal Pipe Thread with
The external pipe thread of open end matches, and tightens upper cover 4, seals wave detector and becomes whole, the other end of cable accesses aviation
In plug, it is connected in order to acquire equipment.
Convertible tail bone is referring to attached drawing 9-12.Attached drawing 9 indicates the general tail bone 51 for being suitable for more scenes, installs the tail bone
Wave detector can be placed in soft surfaces or sticky surface, ensure that wave detector is not embedded, wave detector can also be placed in hardening table
Face.Attached drawing 10 indicate be suitable for hardened surface or the plate tail bone 52 suitable for engineering sounding, by tail bone bending bottom plate and
Wave detector can be placed in vertical hardened surface even top plate by fastener appropriate.Attached drawing 11 indicates to be suitable for field data collection
Elongated tail bone 53, elongated tail bone facilitate insertion into and acquire data in soil, and the side plate of top can be with auxiliary construction personnel by detection
Device treads in harder soil.Attached drawing 12 indicates to be suitable for the embedding shallow well tail bone 54 of shallow well.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of 3-component earthquake detector shell of convertible tail bone, including MEMS sensor circuit board and with the MEMS
Sensor circuit board be electrically connected shielded cable, which is characterized in that further include: circuit board fixing rack, cylinder-like shell, on
Lid, Waterproof cable joint, aviation plug and tail bone；
Wherein, the MEMS sensor circuit board at least has three pieces, respectively circuit board one, circuit board two and circuit board three；
The circuit board fixing rack is cylindrical hollow structure, and the circuit board one is installed in one end of the cylindrical hollow structure；Institute
State circuit board mounting groove there are two opening up vertically in cylindrical hollow structure side wall；The circuit board two and the circuit board three are distinguished
It is mounted in two circuit board mounting grooves；The circuit board one, the circuit board two and the circuit board three are vertical two-by-two；
The circuit board one is laterally fixed, and the circuit board two and the circuit board three are longitudinally fixed；The shielded cable respectively with institute
Circuit board one, the circuit board two, the circuit board three is stated to be electrically connected；
The circuit board fixing rack is placed in the cylinder-like shell；The open end upper cover of the cylinder-like shell is closed on described
It covers, offers threading hole on the upper lid；The shielded cable sequentially pass through the upper cover, the Waterproof cable joint with it is described
Aviation plug connection；The closed end of the cylinder-like shell is fixedly connected with the tail bone.
2. a kind of 3-component earthquake detector shell of convertible tail bone according to claim 1, which is characterized in that described
Mounting-positioning holes one are offered on the side wall of circuit board fixing rack, offer mounting-positioning holes on the side wall of the cylinder-like shell
Two, the mounting-positioning holes one cooperate with the mounting-positioning holes two, are carried out by holding screw surely tight.
3. a kind of 3-component earthquake detector shell of convertible tail bone according to claim 1, which is characterized in that also wrap
Include the other end mounting circuit boards four for being mounted on the cylindrical hollow structure.
4. a kind of 3-component earthquake detector shell of convertible tail bone according to claim 1, which is characterized in that described
The closed end of cylinder-like shell is provided with tail bone mounting groove, is provided with Internal Pipe Thread on the tail bone mounting groove inner wall.
5. a kind of 3-component earthquake detector shell of convertible tail bone according to claim 4, which is characterized in that described
The mounting portion on tail bone top is provided with external pipe thread, and said inner tube screw thread is adapted with the external pipe thread.
6. a kind of 3-component earthquake detector shell of convertible tail bone according to claim 1, which is characterized in that described
Tail bone includes but is not limited to: general tail bone, plate tail bone, elongated tail bone and shallow well tail bone.
7. a kind of 3-component earthquake detector shell of convertible tail bone according to claim 1, which is characterized in that described
It is provided with external pipe thread on the side wall of the open end of cylinder-like shell, Internal Pipe Thread is provided on the inner wall of the upper cover, it is described
External pipe thread is adapted with said inner tube screw thread.
8. a kind of 3-component earthquake detector shell of convertible tail bone according to claim 2, which is characterized in that described
Positioning hole is sealed using screw thread fastening glue.
9. a kind of 3-component earthquake detector shell of convertible tail bone according to claim 1-8, feature
Be, the circuit board fixing rack, the cylinder-like shell, the upper cover be all made of aluminium alloy bars through numerical control machine tool cutting and
At.
10. a kind of 3-component earthquake detector shell of convertible tail bone according to claim 1-8, feature
It is, marine glue is perfused between the Waterproof cable joint and the upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296194.9A CN109143323B (en) | 2018-11-01 | 2018-11-01 | Three-component geophone shell capable of changing coccyx |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811296194.9A CN109143323B (en) | 2018-11-01 | 2018-11-01 | Three-component geophone shell capable of changing coccyx |
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| CN109143323A true CN109143323A (en) | 2019-01-04 |
| CN109143323B CN109143323B (en) | 2023-11-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806258A (en) * | 2019-11-12 | 2020-02-18 | 山东省科学院激光研究所 | Three-component fiber grating vibration sensor |
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