CN206990626U - Force-balance accelerometer - Google Patents
Force-balance accelerometer Download PDFInfo
- Publication number
- CN206990626U CN206990626U CN201721013073.XU CN201721013073U CN206990626U CN 206990626 U CN206990626 U CN 206990626U CN 201721013073 U CN201721013073 U CN 201721013073U CN 206990626 U CN206990626 U CN 206990626U
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- Prior art keywords
- acceleration detecting
- base
- force
- housing
- east
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Abstract
The utility model discloses a kind of force-balance accelerometer, belong to a kind of seismic monitoring terminal installation, including base and housing, the housing is placed in the top of base, main circuit board is installed on base, main circuit board is placed in the inside of housing, and signal connector is provided with main circuit board, and East and West direction acceleration detecting, northern south orientation acceleration detecting are provided with base with vertical to acceleration detecting；By the way that East and West direction acceleration detecting, northern south orientation acceleration detecting are installed on base with vertical to acceleration detecting, it is placed in the inside of housing, it is effectively simplified the structure of force-balance accelerometer itself, lift the globality of sensor, and lower margin set screw is set in the bottom of base, so that base and the contact position on ground have adjustability, ensure that force-balance accelerometer can be formed with ground effectively to contact, the validity of Monitoring Data is lifted, is especially suitable for using as the terminal force snesor of earthquake monitoring system.
Description
Technical field
A kind of seismic monitoring terminal installation is the utility model is related to, in particular, the utility model relates generally to one kind
Force-balance accelerometer.
Background technology
Force-balance accelerometer is also known as servo sensor.The force feedback being made up of mechanical part and servo circuit, which measures, to be filled
Put, be a kind of low-frequency sensor that input power is measured by the servo balance between feedback force and input power.It is former by its realization
The limitation of reason, this kind of force balance type sensor is mostly complicated, globality deficiency, can not effectively be contacted with ground, so as to
Cause Monitoring Data deviation occur, thus be necessary further to be studied and changed for the force balance type sensor of existing structure
Enter.
Utility model content
One of the purpose of this utility model is to be directed to above-mentioned deficiency, there is provided a kind of force-balance accelerometer, with potential solution
Certainly force balance type sensor construction is complicated in the prior art, and using when bottom can not effectively be contacted with ground, cause to monitor number
According to there are the technical problems such as deviation.
To solve above-mentioned technical problem, the utility model uses following technical scheme：
A kind of force-balance accelerometer provided by the utility model, including base and housing, the housing are placed in base
Top, main circuit board is installed on the base, the main circuit board is placed in the inside of housing, and pacifies on the main circuit board
Equipped with signal connector, East and West direction acceleration detecting, northern south orientation acceleration detecting are installed with hanging down on the base
Directly to acceleration detecting, the East and West direction acceleration detecting, northern south orientation acceleration detecting are with vertical to acceleration
Degree detection means is placed in the inside of housing and is respectively connected to main circuit board, and East and West direction guide groove is also equipped with the base,
The East and West direction guide groove is corresponding with the position of the East and West direction acceleration detecting.
Preferably, further technical scheme is：The main circuit board is mounted on base by studdle, the east
West to acceleration detecting, northern south orientation acceleration detecting, vertically to acceleration detecting and East and West direction guide groove
It is placed between main circuit board and base.
Further technical scheme is：The bottom of the base is provided with least three lower margin set screws, the lower margin
Set screw is placed in the adjacent edges of base.
Further technical scheme is：The near middle of the base is additionally provided with fixed card buckle, in the fixed card buckle
Provided with kidney slot.
Further technical scheme is：The shell body top be additionally provided with it is described vertical to acceleration detecting phase
Corresponding first zeroing mouth, the shell body examination side are provided with second zeroing corresponding with East and West direction acceleration detecting
Mouthful, the corresponding with northern south orientation acceleration detecting the 3rd zeroing mouth.
Further technical scheme is：The top cover of the housing upper is detachable structure, and the top cover passes through
Screw is arranged on housing.
Further technical scheme is：The top of the top cover is additionally provided with horizontal bubble.
Compared with prior art, one of the beneficial effects of the utility model are：By by East and West direction acceleration detecting,
Northern south orientation acceleration detecting is installed on base with vertical to acceleration detecting, is placed in the inside of housing, has
Effect simplifies the structure of force-balance accelerometer itself, lifts the globality of sensor, and set lower margin in the bottom of base
Set screw so that base and the contact position on ground have adjustability, ensure force-balance accelerometer can with ground formed with
Effect contact, lifts the validity of Monitoring Data, is especially suitable for using as the terminal force snesor of earthquake monitoring system, simultaneously
A kind of force-balance accelerometer provided by the utility model is simple in construction, easy to spread suitable for industrialized production.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model one embodiment；
Fig. 2 is Fig. 1 internal structure schematic diagram；
Fig. 3 is the structural representation of Fig. 1 another angle；
In figure, 1 be base, 2 be main circuit board, 3 be housing, 31 be top cover, 4 be signal connector, 5 be East and West direction accelerate
Degree detection means, 6 be northern south orientation acceleration detecting, 7 be vertically East and West direction guide groove, 9 to acceleration detecting, 8
It is fixed card buckle for lower margin set screw, 10,11 be kidney slot, 12 be the first zeroing mouth, 13 be the second zeroing mouth, 14 is support
Screw rod, 15 are horizontal bubble.
Embodiment
The utility model is further elaborated below in conjunction with the accompanying drawings.
With reference to shown in figure 1 and Fig. 2, one embodiment of the present utility model is a kind of force-balance accelerometer, including base 1
With housing 3, the housing 3 need to be placed in the top of base 1, and with reference to shown in Fig. 3, main circuit board 2 is provided with the base 1, will be foregoing
Main circuit board 2 is placed in the inside of housing 3, then signal connector 4 is provided with main circuit board 2, in order to by accessing signal
Line is connected with the equipment of outside；One East and West direction acceleration detecting, 5, northern south orientation acceleration are installed on base 1 again
Detection means 6 is vertical with one to acceleration detecting 7, and foregoing East and West direction acceleration detecting 5, northern south orientation are added
Speed detector 6 and the vertical inside that housing 3 is placed in acceleration detecting 7, and three is respectively connected to foregoing
Main circuit board 2；Then one East and West direction guide groove 8 is installed again on foregoing base 1 again, and make East and West direction guide groove 8 and east
West is corresponding to the position of acceleration detecting 5；As foregoing described, the accelerometer of three axial direction one, remember simultaneously
Record Bei Nan, thing and up and down point to acceleration signal.Three points to work axially must it is orthogonal, for machine volume
Minimum can be accomplished, interior layout needs compact.
In the present embodiment, by by East and West direction acceleration detecting 5, northern south orientation acceleration detecting 6 with it is vertical
It is installed in acceleration detecting 7 on base 1, is placed in the inside of housing 3, is effectively simplified force-balance accelerometer certainly
The structure of body, lift the globality of sensor.
According to another embodiment of the present utility model, for the globality of further lifting force-balance accelerometer, letter is avoided
Line between on number connector 4 and main circuit board 2 is long, occurs releasing in use and influences signal transmission, therefore can will
Main circuit board 2 on base 1, is then examined East and West direction acceleration detecting 5, northern south orientation acceleration by studdle 16
Survey device 6, be vertically placed in acceleration detecting 7 and East and West direction guide groove 8 between main circuit board 2 and base 1；So that
Top of the main circuit board 2 closer to housing 3, it is even more important that the top of housing is additionally provided with one and signal connector 4
The through hole to match.
With reference to shown in Fig. 3, in the utility model is used to solve the more preferred one embodiment of technical problem, to ensure
The validity that force-balance accelerometer bottom contacts with ground, multiple lower margin regulation spiral shells are preferably set in the bottom of above-mentioned base 1 again
Silk 9, the direct part contacted using the lower margin set screw 9 as force-balance accelerometer with ground, and in order that lower margin is adjusted
The stability of force-balance accelerometer when screw 9 contacts ground, need that three lower margin set screws at least are installed in the bottom of base 1
9, and these lower margin set screws 9 are placed in the adjacent edges of base 1；And then by adjusting these lower margin set screws 9
Adjust the state that they are contacted with ground, it is ensured that force-balance accelerometer can be in optimal contact shape with ground after mounting
State, ensure the accuracy of Monitoring Data.Further, for ease of installation, one can be set in the near middle of above-mentioned base 1 again
Fixed card buckle 10, and kidney slot 11 is set in fixed card buckle 10, by foregoing structure, used in force-balance accelerometer
When, only it need to squeeze into setscrew on ground or macroseism pier, after the gap position of fixed card buckle buckles into setscrew, regulation is horizontal simultaneously
Screw lower margin set screw 9, you can realize effective fixation with ground.
It is similar similar with prior art, for ease of being adjusted to above-mentioned each acceleration monitoring device, can also exist again
The setting of the top of shell body 3 and the vertical first zeroing mouth 12 corresponding to acceleration detecting 7, are surveyed on side in shell body 3
It is corresponding with northern south orientation acceleration detecting 6 provided with the second zeroing mouth 13 corresponding with East and West direction acceleration detecting 5
The 3rd zeroing mouth.
On the other hand, for convenience of dismantling and assembling, also the top cover 31 on the top of housing 3 can be arranged to detachable knot
Structure, then the top cover is arranged on housing 3 by screw, and for ease of the level after adjustment force-balance accelerometer installation
Position, a horizontal bubble 15 can be also also set up on the top of top cover again, by the position of display in horizontal bubble 15, judge to work as
After the installation of preceding force-balance accelerometer whether keep level.
The general principle that a kind of force-balance accelerometer electronic module part provided by the utility model is realized is electric capacity
Transducing coil feeds back, so as to strengthen the rigidity of reed (electrical spring often said).The structure of dynamic balance acceleration differential capacitance, will
Acceleration signal is converted into the displacement of sensitive-mass block, so as to change the electric capacity between fixed polar plate and sensitive-mass block, electric capacity inspection
The electric signal of slowdown monitoring circuit output reflection acceleration magnitude.The dynamic range of system is extended by introducing negative-feedback, improves speedometer
Frequency response, its advantage is simple in construction, and dynamic response is good, and sensitivity is good, and resolution ratio is strong, and it is even more micro- to measure 0.01um
Small displacement.By introducing dynamic balance feedback technique (FBA), the dynamic range of system can be improved, is effectively improved the frequency of system
Response.
Than that described above, it is also necessary to which explanation is " one embodiment ", " another implementation spoken of in this manual
Example ", " embodiment " etc., refer to that the specific features, structure or the feature that combine embodiment description are included in the application summary
Property description at least one embodiment in.It is not necessarily to refer to same reality that statement of the same race, which occur, in multiple places in the description
Apply example.Furthermore, it is understood that when describing a specific features, structure or feature with reference to any embodiment, what is advocated is knot
Other embodiment is closed to realize that this feature, structure or feature also fall in the scope of the utility model.
Although reference be made herein to the utility model is described multiple explanatory embodiments of the present utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modifications and embodiment, these modifications and embodiment
It will fall within spirit disclosed in the present application and spirit.More specifically, in disclosure, drawings and claims
In the range of, a variety of variations and modifications can be carried out to the building block and/or layout of theme combination layout.Except to building block
And/or outside the variations and modifications of layout progress, to those skilled in the art, other purposes also will be apparent.
Claims (7)
1. a kind of force-balance accelerometer, including base (1) and housing (3), the housing (3) are placed in the top of base (1), its
It is characterised by：Main circuit board (2) is installed, the main circuit board (2) is placed in the inside of housing (3), and institute on the base (1)
State and signal connector (4) is installed on main circuit board (2), East and West direction acceleration detecting is installed on the base (1)
(5), northern south orientation acceleration detecting (6) with vertical to acceleration detecting (7), the East and West direction acceleration detecting
(5), northern south orientation acceleration detecting (6) and vertical inside and the difference that housing (3) is placed in acceleration detecting (7)
Main circuit board (2) is accessed, East and West direction guide groove (8), the East and West direction guide groove (8) and institute are also equipped with the base (1)
The position for stating East and West direction acceleration detecting (5) is corresponding.
2. force-balance accelerometer according to claim 1, it is characterised in that：The main circuit board (2) is by supporting spiral shell
Bar (16) is the East and West direction acceleration detecting (5), northern south orientation acceleration detecting (6), vertical on the base (1)
It is placed in acceleration detecting (7) and East and West direction guide groove (8) between main circuit board (2) and base (1).
3. force-balance accelerometer according to claim 1, it is characterised in that：The bottom of the base (1) is provided with least
Three lower margin set screws (9), the lower margin set screw (9) are placed in the adjacent edges of base (1).
4. the force-balance accelerometer according to claim 1 or 3, it is characterised in that：The near middle of the base (1) is also
Provided with fixed card buckle (10), the fixed card buckle (10) is provided with kidney slot (11).
5. force-balance accelerometer according to claim 1, it is characterised in that：Housing (3) top is additionally provided with and institute
State and vertically survey side to the first corresponding zeroing mouth (12) of acceleration detecting (7), the housing (3) and be provided with and thing
The second zeroing mouth (13) corresponding to acceleration detecting (5), corresponding with northern south orientation acceleration detecting (6) the
Three zeroing mouths.
6. force-balance accelerometer according to claim 1, it is characterised in that：The top cover (31) on housing (3) top
For detachable structure, the top cover is arranged on housing (3) by screw.
7. force-balance accelerometer according to claim 6, it is characterised in that：The top of the top cover is additionally provided with horizontal gas
Steep (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013073.XU CN206990626U (en) | 2017-08-14 | 2017-08-14 | Force-balance accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013073.XU CN206990626U (en) | 2017-08-14 | 2017-08-14 | Force-balance accelerometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206990626U true CN206990626U (en) | 2018-02-09 |
Family
ID=61419125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721013073.XU Expired - Fee Related CN206990626U (en) | 2017-08-14 | 2017-08-14 | Force-balance accelerometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206990626U (en) |
-
2017
- 2017-08-14 CN CN201721013073.XU patent/CN206990626U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20210814 |
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| CF01 | Termination of patent right due to non-payment of annual fee |