CN208140249U - Can field calibration vibrating sensor - Google Patents
Can field calibration vibrating sensor Download PDFInfo
- Publication number
- CN208140249U CN208140249U CN201820645169.6U CN201820645169U CN208140249U CN 208140249 U CN208140249 U CN 208140249U CN 201820645169 U CN201820645169 U CN 201820645169U CN 208140249 U CN208140249 U CN 208140249U
- Authority
- CN
- China
- Prior art keywords
- vibrating sensor
- shell
- sensor
- field calibration
- coil
- 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
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000013589 supplement Substances 0.000 description 7
- 238000011065 in-situ storage Methods 0.000 description 5
- 230000005291 magnetic effect Effects 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses it is a kind of can field calibration vibrating sensor.Due to being limited by inconvenience vibrating sensor at present or cannot dismantle etc., the calibration of vibrating sensor must shut down, have a power failure, it is necessary to disassemble sensor the whole series and be sent to laboratory testing, it is necessary to rely on standard vibration machine；Not only the high requirements on the equipment, and person works' amount is big, and caused social influence and economic loss is often huge.Power failure must be especially shut down, is just away from each other with status monitoring maintenance trend.The technical solution adopted in the utility model is：Can field calibration vibrating sensor, including shell, on signal coil shell intracorporal loop sleeve and be wound in loop sleeve, the loop sleeve also one alignment coil of coiling.The utility model can calibrate sensor in laboratory, can also calibrate even in sensor at the scene.
Description
Technical field
The utility model belongs to oscillation sensor field, specifically it is a kind of can field calibration or calibrated in situ vibration
Sensor.
Background technique
Currently, the domestic vibration monitoring sensor largely used, is distributed in earthquake, railway, bridge, electric power, machinery, petrochemical industry
Etc. industries.In the power system, vibration monitoring sensor is also widely used in the tower of the unit monitoring of power generation link, transmission of electricity link
Line monitoring, transformer monitoring of power transformation link etc..They play the role of the safe and stable operation of electric system vital.
But all there is following drawback in these sensors：
1）Operation detection and maintenance must shut down, have a power failure.
Vibrating sensor be often mounted on vibration position shell on or enclosure interior, some be directly installed on high pressure shaft tower or
On high-voltage line, it is detected and is safeguarded, can only then sensor disassembled and be sent by compressor emergency shutdown or line outage
Inspection.
2）Sensor the whole series must be disassembled and be sent to laboratory testing.
Vibration monitoring sensor, it is not replaceable because of accessory kit much equipped with matched suitable tune instrument, extension cable etc.
Property, to investigate the year stability of sensor, it is necessary to which the whole series disassemble inspection.But in practical application, sensor is mounted on monitoring
On position, suitable that instrument is adjusted to be mounted on control computer room, it is curved between computer room to controlling that extension cable is then mounted on connection monitoring position
In the pipeline of long range, therefore, disassemble and install all very troublesome.
3）Detection must rely on standard vibration machine.
By the method for existing calibration vibrating sensor, it is necessary to provide it with a pattern field signal, then measurement output
Value, the two are divided by obtain the signal sensitivity of sensor.This pattern field signal can only be provided by standard vibration machine, and standard
Shake table often only has only a few technical body just to have, such as metering institutes at different levels, each internal system research institute, standard device
Resource is excessively concentrated, and for the sensor of substantial amounts, calibration amount is too big, it is difficult to guarantee timeliness.
Above 3 points of requirements are indispensable, not only the high requirements on the equipment, but also person works' amount is big, and caused society
It influences and economic loss is often huge.Power failure must be especially shut down, is just examined with status monitoring currently more and more prevailing
The trend of repairing is away from each other.
Utility model content
Technical problem to be solved in the utility model is to overcome the problems of the above-mentioned prior art, provides a kind of shaking
The vibrating sensor of calibrated in situ can be realized when dynamic working sensor or in its operating position.
For this purpose, the utility model adopts the following technical scheme：Can field calibration vibrating sensor, including shell, position
In signal coil shell intracorporal loop sleeve and be wound in loop sleeve, which is characterized in that in the loop sleeve also
One alignment coil of coiling.
There is no the vibrating sensor of built-in alignment coil, it can only be by adding vibration with conventional method on laboratory vibration platform
Excitation surveys output electric signal to test its sensitivity and frequency response characteristic；The utility model can carry out the online of vibrating sensor
Calibration.The utility model increases an alignment coil on the basis of original signal coil, can thus pass through transmission function
Analogy equation, determines the relationship between signal coil and alignment coil, using the method for electric calibration, is realized by electric calibration existing
The purpose of field calibration or calibrated in situ.
It is online that supplement as above-mentioned technical proposal, the alignment coil and the signal coil intersect coiling parallel
On snare cylinder, the coil of two groups of identical characteristics is formed.
Supplement as above-mentioned technical proposal, the shell is interior can to make the mandrel moved axially with respect to shell equipped with one,
A permanent magnet is socketed in the mandrel, the permanent magnet is fixedly connected on shell by an aluminum frame.Permanent magnet is fixed on shell
On body, such mandrel can be moved axially relative to permanent magnet.
The left part of supplement as above-mentioned technical proposal, the mandrel connects a damper.
Supplement as above-mentioned technical proposal is equipped with first resetted for damper between the shell and damper
Spring leaf.
The right part of supplement as above-mentioned technical proposal, the mandrel connects a connection frame, and the loop sleeve is set
On connection frame, moved axially together relative to shell in company with connection frame.
Supplement as above-mentioned technical proposal is equipped with second resetted for connection frame between the shell and connection frame
Spring leaf.
Supplement as above-mentioned technical proposal, the arranged on left and right sides of the aluminum frame are respectively provided with damper and coil set
The annular groove that cylinder moves back and forth, annular groove provide space to the reciprocating motion of damper and loop sleeve.
The utility model has the advantage that as follows：The utility model can calibrate sensor in laboratory,
Sensor can be calibrated even at the scene.It is that this largely uses every profession and trade, cannot dismantle or inconvenient disassembly
Sensor for, reduce the workload of staff, maintain the continuity of vibration monitoring, reduce and even avoid because wanting
Inspection and social influence and economic loss caused by stopping working.The online prison that the utility model realizes side work, frontier inspection is surveyed
It surveys, the purpose and requirement of on-line checking, vibration industry status monitoring is made to overhaul to obtain effective execution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model vibrating sensor.
In figure, 1- permanent magnet, 2- aluminum frame, 3- shell, 4- mandrel, 5- damper, the first spring leaf of 6-, 7- connection frame, 8-
Second spring piece, 9- signal coil, 10- alignment coil, 11- loop sleeve, 12- annular groove.
Specific embodiment
The invention will be further described with specific embodiment with reference to the accompanying drawings of the specification.
Vibrating sensor as shown in Figure 1, can field calibration vibrating sensor, by mandrel 4, permanent magnet 1, aluminum frame 2,
Shell 3, damper 5, the first spring leaf 6, connection frame 7, second spring piece 8, to be located at the intracorporal loop sleeve 11 of shell, coiling online
Signal coil 9 and alignment coil 10 on snare cylinder form, and intersection is wound on parallel for the alignment coil 10 and signal coil 9
In loop sleeve 11, the coil of two groups of identical characteristics is formed.
The mandrel 4 moved axially can be made with respect to shell by being equipped in the shell 3, be socketed permanent magnet 1, institute in the mandrel 4
The permanent magnet 1 stated is fixedly connected on shell 3 by aluminum frame 2.
The left part connection damper 5 of the mandrel 4 is equipped with the resetted for damper between shell 3 and damper 5
One spring leaf 6.The right part of the mandrel 4 connects connection frame 7, and the loop sleeve 11 is located on connection frame 7, in company with connection
Frame 7 is moved axially relative to shell together；Second resetted for connection frame is equipped between the shell 3 and connection frame 7
Spring leaf 8.
The annular groove that the arranged on left and right sides of the aluminum frame 2 is respectively provided with damper 5 and loop sleeve 11 moves back and forth
12。
The working principle of the utility model is：
When vibrating sensor works, sensor experiences external vibration（It is installed by left side screw thread）, movable part（Spring
Piece, damper, connection frame, loop sleeve, alignment coil, signal coil, mandrel etc.）Because inertia generates reciprocal fortune along direction of vibration
Dynamic, according to the law of electromagnetic induction, signal coil generates electric current under magnetic fields, passes through the electricity of measuring signal coil output port
Stream or voltage, can measure the sensitivity of the vibrating sensor.
When carrying out laboratory investment with conventional method, which is removed from work on the spot position, is mounted on experiment
On the standard vibration machine of room, when shake table vibrates, sensor experiences external vibration（It is installed by left side screw thread）, movable part
（Spring leaf, damper, connection frame, loop sleeve, alignment coil, signal coil, mandrel etc.）Because inertia is generated along direction of vibration
It moves back and forth, according to the law of electromagnetic induction, signal coil generates electric current under magnetic fields, passes through measuring signal coil output end
The current or voltage of mouth, can measure the sensitivity of the vibrating sensor.
When electricity consumption calibration method calibrated in situ or the field calibration sensor, sensor is mounted on operating position, from lubber-line
It encloses input terminal and inputs normalized current, according to the magnetic effect of electric current, magnetic field is generated, by left hand rule it is found that movable part（Spring
Piece, damper, connection frame, loop sleeve, alignment coil, signal coil, mandrel etc.）The alternating current inputted according to alignment coil
Reciprocating motion is generated, according to the law of electromagnetic induction, signal coil generates electric current under magnetic fields, defeated by measuring signal coil
The current or voltage of exit port can measure the sensitivity of the vibrating sensor.
The condition of calibrated in situ：Sensor does not experience external vibration；Or experience vibration but the vibration much smaller than calibration
The vibration that coil input current generates, that is, the vibration experienced are considered as noise for the vibration that alignment coil generates.
The above descriptions are merely preferred embodiments of the present invention, not does to the structure of the utility model any
Formal limitation, all technical spirit any simple modifications made to the above embodiment according to the present utility model are equivalent
Variation and modification, are all within the scope of the technical scheme of the utility model.
Claims (8)
1. can field calibration vibrating sensor, including shell (3), be located at and the intracorporal loop sleeve of shell (11) and be wound on coil
Signal coil (9) on sleeve, which is characterized in that one alignment coil of coiling (10) is gone back in the loop sleeve (11).
2. it is according to claim 1 can field calibration vibrating sensor, which is characterized in that the alignment coil (10)
Intersect parallel with the signal coil (9) and be wound on loop sleeve (11), forms the coil of two groups of identical characteristics.
3. it is according to claim 1 or 2 can field calibration vibrating sensor, which is characterized in that in the shell (3)
It can make the mandrel (4) moved axially by shell relatively equipped with one, be socketed a permanent magnet (1), the permanent magnet in the mandrel (4)
(1) it is fixedly connected on shell (3) by an aluminum frame (2).
4. it is according to claim 3 can field calibration vibrating sensor, which is characterized in that the left end of the mandrel (4)
Portion connects a damper (5).
5. it is according to claim 4 can field calibration vibrating sensor, which is characterized in that the shell (3) and resistance
The first spring leaf (6) resetted for damper is equipped between Buddhist nun's device (5).
6. it is according to claim 4 can field calibration vibrating sensor, which is characterized in that the right end of the mandrel (4)
Portion connects a connection frame (7), and the loop sleeve (11) is located on connection frame (7), in company with connection frame (7) together relative to shell
Body moves axially.
7. it is according to claim 6 can field calibration vibrating sensor, which is characterized in that the shell (3) and even
Connect the second spring piece (8) for being equipped between frame (7) and resetting for connection frame.
8. it is according to claim 6 can field calibration vibrating sensor, which is characterized in that the aluminum frame (2) it is left and right
The annular groove (12) that two sides are respectively provided with damper (5) and loop sleeve (11) moves back and forth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820645169.6U CN208140249U (en) | 2018-05-02 | 2018-05-02 | Can field calibration vibrating sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820645169.6U CN208140249U (en) | 2018-05-02 | 2018-05-02 | Can field calibration vibrating sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208140249U true CN208140249U (en) | 2018-11-23 |
Family
ID=64310817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820645169.6U Active CN208140249U (en) | 2018-05-02 | 2018-05-02 | Can field calibration vibrating sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208140249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022183825A1 (en) * | 2021-03-01 | 2022-09-09 | 歌尔微电子股份有限公司 | Sensor and electronic device |
-
2018
- 2018-05-02 CN CN201820645169.6U patent/CN208140249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022183825A1 (en) * | 2021-03-01 | 2022-09-09 | 歌尔微电子股份有限公司 | Sensor and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106969825B (en) | Fan vibration monitoring system | |
| CN104019950B (en) | A kind of pilot system of testing airplane tank vibrating fatigue performance | |
| CN104597425B (en) | One kind being suitable for GIS electronic mutual inductor and charges evaluating platform | |
| CN103454340B (en) | A kind of portable detection device for steel wire rope | |
| CN104154853A (en) | Method for measuring wind driven generator air gap through eddy current sensors | |
| Jamil et al. | Technical communication of Condition Monitoring System of hydroelectric generating unit of HPP | |
| CN208140249U (en) | Can field calibration vibrating sensor | |
| CN105259397B (en) | Electronic type voltage transformer | |
| CN206248204U (en) | Transportable transformer vibration characteristic signals detection means | |
| CN109632164A (en) | A kind of torductor and its torque measuring method based on giant magnetostrictive material piezomagnetism | |
| CN104637646A (en) | Vibration isolation mechanism based on ratio electromagnet | |
| CN203551240U (en) | Detection and protection device of rotating machinery | |
| CN108375437A (en) | Ship shaft power measurement method based on counter magnetostriction effect | |
| CN208885546U (en) | A kind of big-diameter pipeline conveying pump group monitoring system | |
| CN106270283A (en) | A kind of forcing press punching press tonnage monitoring device | |
| CN206556586U (en) | One kind is without dynamometry displacement transducer take-up device | |
| CN109686552A (en) | A kind of novel voltage mutual inductor based on Rydberg atom Stark effect | |
| CN106802182B (en) | Calibration method of power transmission line breeze vibration online monitoring device | |
| CN108398185A (en) | A kind of vibrating sensor on-line calibration method | |
| CN204404986U (en) | A kind of electronic installation for installing current vortex sensor probe | |
| CN103968936B (en) | Based on difference Micro-Variation Capacitance shaft tower vibration monitoring device | |
| CN106092308A (en) | Novel electric power transformator oscillation real time monitoring device | |
| CN202350728U (en) | Monitor for axial displacement | |
| CN208780333U (en) | Ship power assembly mechanical oscillation Acquisition Instrument | |
| CN208907792U (en) | A kind of breaker data acquisition device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |