CN108919343A - A kind of rotation seismometer - Google Patents
A kind of rotation seismometer Download PDFInfo
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- CN108919343A CN108919343A CN201810468303.4A CN201810468303A CN108919343A CN 108919343 A CN108919343 A CN 108919343A CN 201810468303 A CN201810468303 A CN 201810468303A CN 108919343 A CN108919343 A CN 108919343A
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- fixing piece
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- balancing stand
- seismometer
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- 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
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- Life Sciences & Earth Sciences (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of rotation seismometers, including fixation kit, rotary components and balanced component, the fixation kit includes the first fixing piece and the second fixing piece, and first fixing piece passes through the first supporting element being oppositely arranged with second fixing piece and the second supporting element is fixedly connected；The rotary components include the first connector and the second connector, first connector includes first rotating shaft and the first compliant member being set in first rotating shaft, and second connector includes the second shaft and the second compliant member being set in the second shaft；The balanced component includes balancing stand, first connector is set between the balancing stand and first fixing piece, second connector is set between second fixing piece and the balancing stand, and first compliant member interlocks with second compliant member.The observation of highly sensitive and high-precision earthquake rotative component may be implemented in the present invention.
Description
Technical field
The present invention relates to seismological observation field more particularly to a kind of high-precision rotation seismometers.
Background technique
Both there is translation component in earthquake motion, there is also rotative components, and the two is often to observation instrument cross influence.Usually
Think, earthquake motion translation component amplitude is big, occupies leading position, and earthquake motion rotative component amplitude is weak, therefore rotating seismometer must
The influence that translation earthquake motion must be overcome just can guarantee that observe is the weak rotative component of amplitude.Utilize traditional seismometer technology
To measure earthquake motion rotative component, it is common practice to it is symmetrically placed using two identical seismometers, by two seismometers
Output signal is subtracted each other, and the influence of translation earthquake motion is eliminated.Due to two seismometers be difficult to it is completely the same, especially transmitting letter
Number is difficult to accurately measure, and is difficult to eliminate the influence of translation earthquake motion well by this method, measures the resolution of rotative component
Rate and precision level be not high.In order to improve the precision of rotative component measurement, it should guarantee good symmetry, reduce to the greatest extent again
The influence of symmetrical sexual factor, this is one of the technological difficulties for rotating seismometer design.
Summary of the invention
In view of the above circumstances, the present invention provides a kind of high-precision rotation seismometers.
The present invention to be solved the used following technical scheme of its technical problem to realize.
A kind of rotation seismometer, which is characterized in that including fixation kit, rotary components and balanced component, described fixed group
Part includes the first fixing piece and the second fixing piece, and first fixing piece and second fixing piece pass through first be oppositely arranged
Supporting element and the second supporting element are fixedly connected；The rotary components include the first connector and the second connector, and described first connects
Connecing device includes first rotating shaft and the first compliant member being set in first rotating shaft, and second connector includes the second shaft
And it is set to the second compliant member in the second shaft；The balanced component includes balancing stand and angle detector, the angle
Degree detector is used to detect the rotational angle of the balancing stand；First connector is set to the balancing stand and described first
Between fixing piece, second connector is set between second fixing piece and the balancing stand, first flexible part
Part interlocks with second compliant member.
Preferably, the angle detector be differential capacitor component, the differential capacitor component include a movable plate electrode and its
Respectively arranged at least a pair of of the fixed plate in two sides, the movable plate electrode are fixedly installed in the middle part of the balancing stand.
Preferably, at least a pair of of fixed plate is fixedly installed on first supporting element and second supporting element respectively
On, and the movable plate electrode is located at the movable plate electrode two sides two-by-two symmetrical parallelly.
Preferably, the fixation kit further includes the first transverse slat and the second transverse slat, and the both ends of first transverse slat are solid respectively
It is scheduled on the left and right sides of first fixing piece, the both ends of second transverse slat are separately fixed at the left and right of second fixing piece
Two sides；The first rotating shaft is fixedly connected with first transverse slat, and second shaft is fixedly connected with second transverse slat.
Preferably, the balancing stand both ends are respectively fixedly connected with the component that is magnetic, and the magnet assembly includes magnet and sets
The coil being placed in the magnets magnetic fields, the magnet and the coil are coaxially disposed.
Preferably, two magnet centers are symmetrically fixed on the balancing stand both ends, towards on the contrary.
Preferably, balance weight is provided in each coil.
Preferably, the rotation seismometer further includes a feed circuit, and the feed circuit is used for the differential capacitor
Component rotates generated capacitance variations and is converted to voltage, then drives the coil and magnet benefit by the feed circuit
Magnetic strength power is generated with the voltage, the magnetic strength power can reach balance with the rotary force of earthquake, so that the movable plate electrode is maintained at
Center equilbrium position.
Preferably, the side of first supporting element connects the line of described balancing stand one end by the first cross-brace plate
Circle, side of second supporting element far from the first cross-brace plate connects the balancing stand other end by the second cross-brace plate
Coil.
The advantages of the present invention are：First connector is set to the balancing stand and described first and fixes
Between part, second connector is set between second fixing piece and the balancing stand, first connector and institute
It states the second connector and forms skew symmetry setting, first compliant member is staggered with second compliant member, not only
Structure is simplified, additionally it is possible to eliminate the translation component in earthquake well, make to be not easily susceptible to translation component when measuring rotational component
Influence.
Detailed description of the invention
Fig. 1 is the schematic perspective view of present invention rotation seismometer；
Fig. 2 is the decomposition diagram of present invention rotation seismometer；
Fig. 3 is the schematic perspective view of present invention rotation seismometer differential capacitor component；
Fig. 4 is the schematic perspective view of present invention rotation seismometer reed connector；
Fig. 5 is the schematic perspective view of present invention rotation seismometer rotary components.
Wherein, appended drawing reference is summarized as follows：000, seismometer is rotated；100, fixer assembly；200, rotary components；300,
Balanced component；301, differential capacitor component；400, magnet assembly；1, the first fixing piece；2, the second fixing piece；3, the first support
Part；4, the second supporting element；5, the first reed connector；6, the second reed connector；7, third reed connector；8, the 4th reed
Connector；9, the first compliant member；10, the second compliant member；11 (10), third compliant member；12, the 4th compliant member；13,
First rotating shaft；14, the second shaft；15, the first transverse slat；16, the second transverse slat；17, the first cross-brace plate；18, it second laterally props up
Fagging；19, balancing stand；401, magnet；402, coil；403, balance weight；404, clump weight；311, movable plate electrode；312, raised；
313, fixed plate；201, connector；211, connector；500, rotary components two.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
Fig. 1 is a kind of schematic perspective view for rotation seismometer that the embodiment of the present invention one provides；Fig. 2 is that the present invention is real
The decomposition diagram of the rotation seismometer of the offer of example one is provided.Also referring to Fig. 1 and Fig. 2, rotation seismometer provided by the invention
000 includes fixation kit 100, rotary components 200, balanced component 300 and magnet assembly 400.
The fixation kit 100 includes the first fixing piece 1 and the second fixing piece 2, first fixing piece 1 and described second
Fixing piece 2 passes through the first supporting element 3 being oppositely arranged and is fixedly connected with the second supporting element 4；The fixer assembly 100 further includes
First transverse slat 15 and the second transverse slat 16, the both ends of first transverse slat 15 are separately fixed at the left and right two of first fixing piece 1
Side, the both ends of second transverse slat 16 are separately fixed at the left and right sides of second fixing piece 2.Specifically, described first is solid
Determining part 1 can be pedestal, and second fixing piece 2 can be footstock, first fixing piece 1 and 2 phase of the second fixing piece
To setting.Specifically, first fixing piece 1 and the second fixing piece 2 may be the same or different, can be to be hollow, can also
To be hollow, not to be not limited to shape described in Fig. 1 and Fig. 2.Specifically, the supporting element can be support rod, be also possible to
Support plate or support column, as long as the component that can be played a supporting role can be used as supporting element.In the present embodiment, described
First fixing piece 1 and ground face contact, second fixing piece 2 are fixed in the top of first fixing piece 1 or described second
Part 2 and ground face contact, first fixing piece 1 is in the top of second fixing piece 2.First supporting element 3 and second
Support member 4 is each attached to the left and right sides of each fixing piece.First transverse slat 15 and the second transverse slat 16 it is staggered relatively and in
The heart is overlapped, and first transverse slat 15 and the second transverse slat 16 are parallel to the ground.
The rotary components 200 include the first connector and the second connector, in the present embodiment, first connector
Including the first reed connector 5, the second reed connector 6, first rotating shaft 13 and it is set in first rotating shaft 13 first soft
Property component 9 and the second compliant member 10, second connector include third reed connector 7, the 4th reed connector 8,
Two shafts 14 and the third compliant member 11 and the 4th compliant member 12 being set in the second shaft 14；First flexible part
Part 9 and 10 interconnection of the second compliant member, the third compliant member 11 and the 4th compliant member 12, which intersect, to be connected
It connects.In the present embodiment, first compliant member 9, the second compliant member 10, third compliant member 11 and the 4th flexible part
Part 12 is reed.Specifically, the first rotating shaft 13 is fixedly installed in the center of first transverse slat 15, second shaft 14
It is fixedly installed in the center of second transverse slat 16.
The balanced component 300 includes balancing stand 19 and angle detector 301, and the angle detector 301 is for detecting
The rotational angle of the balancing stand 19.In the present embodiment, the angle detector 301 is specifically as follows differential capacitor component,
The differential capacitor component includes respectively arranged at least a pair of of the fixed plate of a movable plate electrode and its two sides, the fixed peace of the movable plate electrode
Middle part loaded on the balancing stand.The balancing stand 19 is between first fixing piece 1 and the second fixing piece 2.Specifically,
The both ends of the balancing stand 19 are symmetrical, and the center of the first fixing piece 1, the second fixing piece 2 and balancing stand 19 is overlapped.
Please refer to the schematic perspective view of angle detector 301 in Fig. 3, in the present embodiment, a movable plate electrode 311
It is connected to the middle part of the balancing stand 19 vertically, the movable plate electrode 311 is close to the both ends of the first fixing piece 1 and the second fixing piece 2
Be separately provided for the protrusion 312 connecting with balancing stand 19, it is corresponding, the middle part of balancing stand 19 be also equipped with for it is dynamic
The circular hole that pole plate 311 connects.The fixed plate 313 is located at 311 two sides of movable plate electrode two-by-two symmetrical parallelly and moves with described
Pole plate 311 has a small―gap suture, and the fixed plate 313 is electrically connected with diagonal fixed plate 313.Close to the first supporting element 3
One end of each fixed plate 313 is connect with the first supporting element 3, close to each of the second supporting element 4 fixed plate 313
One end is connect with the second supporting element 4.Wherein, differential capacitor component has the advantages that high sensitivity and the linearity are good, rotates angle
When identical, rotation axis is more left, rotation displacement is bigger, and therefore, differential capacitor is arranged at balancing stand center in the present embodiment, can make
Spacing distance between movable plate electrode and fixed plate is as small as possible, contacts without will cause movable plate electrode and fixed plate because of rotation,
Improve the resolution ratio and the linearity of differential capacitor.
In the present embodiment, when assembling the rotation seismometer 000, the first reed connector 5 is consolidated with described first
Determine part 1 to be fixedly connected, the second reed connector 6 is fixedly connected with the balancing stand 19, the third reed connector 7 with
Second fixing piece 2 is fixedly connected far from the side of the first reed connector, the 4th reed connector 8 and the balance
Frame 19 is fixedly connected.The first reed connector 5 and 7 skew symmetry of third reed connector setting, second reed
Connector 6 and 8 skew symmetry of the 4th reed connector setting.Wherein the second reed connector 6 not with 1 phase of the first fixing piece
It even, can be relative to 1 activity of the first fixing piece；4th reed connector 8 is not connected with the second fixing piece 2, can be relative to
Two fixing pieces, 2 activity.In the present embodiment, the first reed connector 5 and third reed connector 7 are by centrosymmetric
Mode is connected with the first fixing piece 1 and the second fixing piece 2, and the second reed connector 6 and the 4th reed connector 8 are in
What the symmetrical mode of the heart was connected with balancing stand 19.
19 both ends of balancing stand are separately connected the magnet assembly 400, and the magnet assembly 400 includes 401 He of magnet
Coil 402.Magnet 401 is made of permanent magnet, outer ring soft iron, center soft iron and bottom cover soft iron (not shown) etc., outer ring soft iron
An annulus gap is formed between the soft iron of center, the permanent magnet passes through the outer ring soft iron, the center soft iron and institute
The magnetic circuit for stating the formation of bottom cover soft iron forms magnetic field in the air gap.Two coils 402 are respectively placed in the air-gap field.It is described
Magnet 401 is circular ring shape, and the magnet 401 is coaxially disposed with the coil 402, and two magnets 401 are symmetrically solid
Due to 19 both ends of balancing stand, direction is on the contrary, be provided with balance weight 403 in each coil 402.The both ends of the balancing stand 19
Inner surface far from magnet assembly 400 fixes a clump weight 404 respectively, and 404 quantity of clump weight is two.The balance weight
403 and the clump weight 404 position it is adjustable, the effect of the balance weight 403 and the clump weight 404 is that adjusting makes instrument
Mechanical device symmetrical balance as far as possible.Therefore, the clump weight 404 can also be considered as balance weight.It is arranged on the balanced component 300
There are the balance weight 403 and clump weight 404 that can be designed, the structure of the rotation seismometer 000 in the present embodiment can be made to keep symmetrical
Balance；Since instrument is integrally designed, the influence for the earthquake motion that is translatable is only dependent upon the symmetry of instrument mechanical part, and being equipped with counterweight can
Adjusting keeps the mechanical part of instrument symmetrical as far as possible, can utmostly lowering apparatus asymmetry when translation earthquake motion to the shadow of observation
It rings.
The fixation kit 100 forms the fixed part motionless relative to ground.The above-mentioned portion being connected on balancing stand 19
Part forms inertia rotating part.When observing earth shock, the so-called compliant member of the present invention refers in the rotation seismometer
When foreseeable external force (translation and rotation of such as earthquake) received under 000 working condition, caused balancing stand 19 and fixing piece
Relative motion active force that compliant member is applied under, compliant member is only capable of generating bending, and cannot occur to stretch or shorten
Deformation, such as compliant member can be for reed, cotton fibriia etc..Therefore, the first reed connector 5 and third reed connector
7 just will pull the second reed connector 6 and the 4th reed connector 8 is translatable together together, cause entirely to rotate earthquake counter device
000 translation, and move movable plate electrode 311 not；When the second reed connector 6 and the 4th reed connector 8 rotate, due to
Above-mentioned compliant member can rotate, and the opposite first reed connector 5 of the second reed connector 6 will be made to rotate, the 4th spring
Piece connector 8 rotates with respect to third reed connector 7, so that balancing stand 19 be made to rotate, drives in differential capacitor component
Movable plate electrode 311 rotates.The magnet assembly 400 and the balancing stand 19 are used as rotating part.The magnet 401 is than the coil
402 is much heavier, and using the magnet 401 rather than the coil 402 can increase rotary inertia as rotating part, reduces certainly
Vibration frequency and Brownian noise are conducive to widen low-frequency band and reduce noise.The coil 401 and the magnet utilize the difference
Dynamic condenser component rotates generated voltage and generates magnetic strength power, and the magnetic strength power can reach balance with the rotary force of earthquake, and make
The differential capacitor component (specially movable plate electrode) is maintained at center equilbrium position, and then makes the rotation seismometer in the present embodiment
000 measurement accuracy improves.
The rotation seismometer 000 further includes a feed circuit (not shown), when ground is shaken, the rotary force of generation
Cause to relatively rotate between movable plate electrode 311, fixed plate 313, rotational angle is directly proportional to external force, movable plate electrode 311, fixed plate
It is relatively rotated between 313 and causes capacitance variations, the feed circuit is used to differential capacitor component 301 rotating generated capacitor
Variation is converted to voltage, drives 402 He of coil using the active force in magnetic field and 402 electric current of coil, then by feed circuit
Magnet 401 generates magnetic strength power using the voltage, and the magnetic strength power can reach balance with the rotary force of earthquake, so that the dynamic pole
Plate 311 is maintained at center equilbrium position.
Preferably, 17 one end of the first cross-brace plate is connect with the side of the first supporting element 3, the other end and balancing stand 19 1
The coil 402 at end is fixed, i.e., the side of the first supporting element 3 passes through the coil that the first cross-brace plate 17 connects 19 one end of balancing stand
402.One end of second cross-brace plate 18 connects side of second supporting element 4 far from the first cross-brace plate 17, the other end with
The coil 402 of the other end of balancing stand 19 is fixed, i.e. the second supporting element 4 passes through second far from the side of the first cross-brace plate 17
Cross-brace plate 18 is connect with the coil 402 of 19 other end of balancing stand.Specifically, the first cross-brace plate 17 and second laterally props up
Fagging 18 is linked together by way of symmetrical balance.
Please refer to the schematic perspective view of connector 201 in Fig. 4, each reed connector 201 is soft with two
Property component connection be specifically connected with connector 201 upside of one end in compliant member or downside be provided with a connection piece 211,
The fixing piece 211 is for preventing compliant member from shifting up and down, as long as meeting the component for preventing compliant member from shifting up and down, all
It can be used as the replacement of the connector 211.
It is proposed by the present invention rotation seismometer 000 working principle be：When ground rotation, instrument rotating part is relative to ground
The rotational angle in face meets following formula：
In formula,
Rotation angle of φ (t) --- the rotating part relative to ground
Rotation angle of θ (t) --- the ground relative to inertial system
D --- damped coefficient
M --- rotating mass
R --- rotating mass and rotation axis distance
K --- reed stiffness coefficient
F --- electro-magnetic feedback power.F=B*Lm*I, B are magnetic induction intensity, LmFor 402 length of coil, I is to be added to coil
402 electric current.
Rotation 000 rotating part of seismometer relative to ground rotational angle and movable plate electrode 311 and fixed plate 313 it
Between differential capacitor variation it is directly proportional, voltage signal can be converted to by differential capacitor change detecting circuit, then pass through feedback
Circuit drives feedback coil 402 makes 000 rotating part of rotation seismometer be maintained at center situation.Optimally, dynamic pole is set
Plate 311 and fixed plate 313 also can be set in the centre of the rotation seismometer 000 in other positions.
Embodiment two
Fig. 5 is the schematic perspective view of rotation seismometer rotary components 2 500 provided by Embodiment 2 of the present invention；This reality
It applies and rotates seismometer 000 provided by example, basic structure is identical with first embodiment with principle and the technical effect of generation, is
It briefly describes, the present embodiment part does not refer to place, can refer to corresponding contents in first embodiment.
Referring to Fig. 5, in the present embodiment, the rotary components 200 include the first connector and the second connector, in this reality
It applies in example, first connector includes the first reed connector 5, the second reed connector 6, first rotating shaft 13 and is set to
The first compliant member 9 in first rotating shaft 13, second connector include third reed connector 7, the 4th reed connector
8, the second shaft 14 and the second compliant member 10 being set in the second shaft 14；First compliant member 9 and described
Two compliant members 10 are staggered.
In the present embodiment, first compliant member 9 and the second compliant member 10 are reed.
In the present embodiment, when assembling the rotation seismometer 000, the first reed connector 5 is consolidated with described first
Determine part 1 to be fixedly connected, the second reed connector 6 is fixedly connected with the balancing stand 19, the third reed connector 7 with
Second fixing piece 2 is fixedly connected far from the side of the first reed connector, the 4th reed connector 8 and the balance
Frame 19 is fixedly connected.The first reed connector 5 and 7 skew symmetry of third reed connector setting, second reed
Connector 6 and 8 skew symmetry of the 4th reed connector setting.Wherein the second reed connector 6 not with 1 phase of the first fixing piece
It even, can be relative to 1 activity of the first fixing piece；4th reed connector 8 is not connected with the second fixing piece 2, can be relative to
Two fixing pieces, 2 activity.In the present embodiment, the first reed connector 5 and third reed connector 7 are by centrosymmetric
Mode is connected with the first fixing piece 1 and the second fixing piece 2, and the second reed connector 6 and the 4th reed connector 8 are in
What the symmetrical mode of the heart was connected with balancing stand 19.
Specifically, one end of the first rotating shaft 13 is fixedly installed in the center of first transverse slat 15, other end setting
In the center of first compliant member 9；One end of second shaft 14 is fixedly installed in the center of second transverse slat 16,
The other end is set to the center of second compliant member 10.It is appreciated that first compliant member 9 and second flexibility
The set-up mode staggered in this way of component 10 has preferably achieved the effect that symmetrical balance, while having simplified structure, but also connection
Device rotation is more smooth, it is easier to measure the rotative component of earthquake motion.
It is understood that for those of ordinary skill in the art, can do in accordance with the technical idea of the present invention
Various other changes and modifications out, and all these changes and deformation all should belong to the protection model of the claims in the present invention
It encloses.
Claims (10)
1. a kind of rotation seismometer, which is characterized in that including fixation kit, rotary components and balanced component, the fixation kit
Including the first fixing piece and the second fixing piece, first fixing piece and second fixing piece pass through first be oppositely arranged
Support member is fixedly connected with the second supporting element；The rotary components include the first connector and the second connector, first connection
Device includes first rotating shaft and the first compliant member being set in first rotating shaft, second connector include the second shaft with
And it is set to the second compliant member in the second shaft；The balanced component includes balancing stand and angle detector, the angle
Detector is used to detect the rotational angle of the balancing stand；First connector is set to the balancing stand and described first and consolidates
Determine between part, second connector is set between second fixing piece and the balancing stand, first compliant member
Interlock with second compliant member.
2. rotation seismometer according to claim 1, which is characterized in that the angle detector is differential capacitor component,
The differential capacitor component includes respectively arranged at least a pair of of the fixed plate of a movable plate electrode and its two sides, the fixed peace of the movable plate electrode
Middle part loaded on the balancing stand.
3. rotation seismometer according to claim 2, which is characterized in that at least a pair of of fixed plate is fixedly installed respectively
In on first supporting element and second supporting element, and the movable plate electrode is located at the movable plate electrode two-by-two symmetrical parallelly
Two sides.
4. rotation seismometer according to claim 1, which is characterized in that the fixation kit further includes the first transverse slat and
Two transverse slats, the both ends of first transverse slat are separately fixed at the left and right sides of first fixing piece, and the two of second transverse slat
End is separately fixed at the left and right sides of second fixing piece；The first rotating shaft is fixedly connected with first transverse slat, described
Second shaft is fixedly connected with second transverse slat.
5. rotation seismometer according to claim 1, which is characterized in that the balancing stand both ends have been respectively fixedly connected with magnetic
Property component, the magnet assembly includes magnet and the coil that is set in the magnets magnetic fields, and the magnet and the coil are same
Axis setting.
6. rotation seismometer according to claim 5, which is characterized in that two magnet centers are symmetrically fixed on institute
Balancing stand both ends are stated, towards on the contrary.
7. rotation seismometer according to claim 5, which is characterized in that be provided with balance weight in each coil.
8. rotation seismometer according to claim 5, which is characterized in that the both ends of the balancing stand are respectively fixed with balance
Block.
9. according to the described in any item rotation seismometers of claim 5 to 8, which is characterized in that the rotation seismometer further includes
One feed circuit, the feed circuit, which is used to rotating the differential capacitor component into generated capacitance variations, is converted to voltage,
The coil and the magnet is driven to generate magnetic strength power using the voltage by the feed circuit again, the magnetic strength power can be with
The rotary force of earthquake reaches balance, so that the movable plate electrode is maintained at center equilbrium position.
10. according to the described in any item rotation seismometers of claim 5 to 8, which is characterized in that the side of first supporting element
The coil of described balancing stand one end, side of second supporting element far from the first cross-brace plate are connected by the first cross-brace plate
The coil of the balancing stand other end is connected by the second cross-brace plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810468303.4A CN108919343B (en) | 2018-05-16 | 2018-05-16 | Rotary seismometer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810468303.4A CN108919343B (en) | 2018-05-16 | 2018-05-16 | Rotary seismometer |
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| CN108919343B CN108919343B (en) | 2021-09-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562934A (en) * | 2018-06-19 | 2018-09-21 | 朱敏 | A kind of rotation seismometer |
| CN108873057A (en) * | 2018-07-09 | 2018-11-23 | 程之琴 | A kind of seismometer |
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| WO2010076626A1 (en) * | 2008-12-31 | 2010-07-08 | Nokia Corporation | Earthquake detection apparatus, system, and method |
| US9300409B1 (en) * | 2011-08-01 | 2016-03-29 | eentec, LLC | Rotational electrochemical seismometer using magnetohydrodynamic technology and related methods |
| CN103149583A (en) * | 2013-02-05 | 2013-06-12 | 中国地震局工程力学研究所 | Rotation acceleration meter for earthquake |
| CN105607139A (en) * | 2016-03-14 | 2016-05-25 | 中国科学院测量与地球物理研究所 | Stabilized platform for marine gravitometer |
| CN106932818A (en) * | 2017-05-09 | 2017-07-07 | 中国地震局工程力学研究所 | A kind of seismic detector for detecting rotation earthquake motion |
| CN108363094A (en) * | 2018-04-20 | 2018-08-03 | 湖北省地震局 | Rotate seismometer |
| CN208044081U (en) * | 2018-04-20 | 2018-11-02 | 湖北省地震局 | Rotate seismometer |
| CN108562934A (en) * | 2018-06-19 | 2018-09-21 | 朱敏 | A kind of rotation seismometer |
| CN108873057A (en) * | 2018-07-09 | 2018-11-23 | 程之琴 | A kind of seismometer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562934A (en) * | 2018-06-19 | 2018-09-21 | 朱敏 | A kind of rotation seismometer |
| CN108873057A (en) * | 2018-07-09 | 2018-11-23 | 程之琴 | A kind of seismometer |
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