CN204405085U - A kind of eddy current probe - Google Patents
A kind of eddy current probe Download PDFInfo
- Publication number
- CN204405085U CN204405085U CN201420575486.7U CN201420575486U CN204405085U CN 204405085 U CN204405085 U CN 204405085U CN 201420575486 U CN201420575486 U CN 201420575486U CN 204405085 U CN204405085 U CN 204405085U
- Authority
- CN
- China
- Prior art keywords
- probe
- fixed head
- eddy current
- containment vessel
- current probe
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to a kind of eddy current probe; comprise containment vessel; described containment vessel inside is provided with industrial ceramics skeleton; described industrial ceramics skeleton is provided with coil mounting structure; described coil mounting structure is provided with radio-frequency coil; described containment vessel top is provided with syndeton; described syndeton two ends are respectively arranged with the first fixed head, the second fixed head; described first fixed head, the second fixed head are provided with probe installing structure; described probe installing structure is provided with probe, described probe is provided with window.The utility model structure is simple, highly sensitive, antijamming capability is strong.
Description
Technical field
The utility model relates to a kind of proving installation, particularly relates to a kind of eddy current probe.
Background technology
Eddy-current sensor system is with the advantage of its uniqueness; be widely used in the industries such as electric power, oil, chemical industry, metallurgy; on-line measurement and safeguard protection are carried out to the radial vibration, axial displacement, phase detector, axle rotating speed, swollen difference, bias, oil film thickness etc. of the axle of the large rotating machineries such as steam turbine, the hydraulic turbine, generator, fan blower, compressor, gear case, and the aspect such as rotor dynamics research and accessory size inspection.
At present, current vortex sensor technology has been tending towards perfect, but still there is following problem: complex structure, sensitivity are low, the problems such as antijamming capability is weak.
Utility model content
Technical problem to be solved in the utility model is to provide the eddy current probe that a kind of structure is simple, highly sensitive, antijamming capability is strong.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of eddy current probe, comprise containment vessel, described containment vessel inside is provided with industrial ceramics skeleton, described industrial ceramics skeleton is provided with coil mounting structure, described coil mounting structure is provided with radio-frequency coil, described containment vessel top is provided with syndeton, described syndeton two ends are respectively arranged with the first fixed head, second fixed head, described first fixed head, second fixed head is provided with probe installing structure, described probe installing structure is provided with probe, described probe is provided with window.
Described probe produces electromagnetic induction by window and testee; described electromagnetic induction protected shell internal high frequency is coil-induced; the change of described radio-frequency coil impedance exports a DC voltage be directly proportional to distance; therefore by the measurement of current vortex size, the measurements such as the displacement to testee, rotating speed, bias, thickness can be realized.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described containment vessel is metal coating shell, for preventing external signal to the interference of internal test signals, improves the interference performance of probe.
Further, described radio-frequency coil adopt multiply comparatively fine enamelled wire strand turn round coiling and form, be conducive to the raising of quality factor, contribute to the sensitivity strengthening probe.
Further, described first fixed head, the second fixed head are symmetrical arranged, fixing for eddy current probe.
Further, described syndeton and probe installing structure conducting, for the transmission of eddy current probe internal electrical magnetic induction.
The beneficial effects of the utility model are: structure is simple, highly sensitive, antijamming capability is strong, non-cpntact measurement, fast response time, not by the impact of the media such as profit.
Accompanying drawing explanation
Fig. 1 is a kind of eddy current probe structural representation of the utility model;
In accompanying drawing, the list of parts representated by each label is as follows: 1, protecting sheathing, and 2, radio-frequency coil, 3, coil mounting structure; 4, industrial ceramics skeleton, the 5, first fixed head, the 6, second fixed head, 7, probe installing structure; 8, syndeton, 9, probe, 10, window.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1; a kind of eddy current probe; comprise containment vessel 1; described containment vessel 1 inside is provided with industrial ceramics skeleton 4; described industrial ceramics skeleton 4 is provided with coil mounting structure 3; described coil mounting structure 3 is provided with radio-frequency coil 2; described containment vessel 1 top is provided with syndeton 8; described syndeton 8 two ends are respectively arranged with the first fixed head 5, second fixed head 6; described first fixed head 5, second fixed head 6 is provided with probe installing structure 7; described probe installing structure 7 is provided with probe 9, described probe 9 is provided with window 10.
Described probe 9 produces electromagnetic induction by window 10 and testee; described electromagnetic induction protected shell 1 internal high frequency coil 2 is responded to; the change of described radio-frequency coil 2 impedance exports a DC voltage be directly proportional to distance; therefore by the measurement of current vortex size, the measurements such as the displacement to testee, rotating speed, bias, thickness can be realized.
Described containment vessel 1 is metal coating shell, for preventing external signal to the interference of internal test signals, improves the interference performance of probe 9; Described radio-frequency coil 2 adopt multiply comparatively fine enamelled wire strand turn round coiling and form, be conducive to the raising of quality factor, contribute to the sensitivity strengthening probe 9; Described first fixed head 5, second fixed head 6 is symmetrical arranged, fixing for eddy current probe 9; Described syndeton 8 and probe installing structure 7 conducting, for the transmission of eddy current probe 9 internal electrical magnetic induction.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. an eddy current probe; it is characterized in that; comprise containment vessel; described containment vessel inside is provided with industrial ceramics skeleton; described industrial ceramics skeleton is provided with coil mounting structure; described coil mounting structure is provided with radio-frequency coil; described containment vessel top is provided with syndeton; described syndeton two ends are respectively arranged with the first fixed head, the second fixed head; described first fixed head, the second fixed head are provided with probe installing structure; described probe installing structure is provided with probe, described probe is provided with window.
2. a kind of eddy current probe according to claim 1, it is characterized in that, described containment vessel is metal coating shell.
3. a kind of eddy current probe according to claim 1, is characterized in that, described radio-frequency coil adopt multiply comparatively fine enamelled wire strand turn round coiling and form.
4. a kind of eddy current probe according to claim 1, it is characterized in that, described first fixed head, the second fixed head are symmetrical arranged.
5. a kind of eddy current probe according to claim 1, is characterized in that, described syndeton and probe installing structure conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575486.7U CN204405085U (en) | 2014-09-30 | 2014-09-30 | A kind of eddy current probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575486.7U CN204405085U (en) | 2014-09-30 | 2014-09-30 | A kind of eddy current probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204405085U true CN204405085U (en) | 2015-06-17 |
Family
ID=53428936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420575486.7U Expired - Fee Related CN204405085U (en) | 2014-09-30 | 2014-09-30 | A kind of eddy current probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204405085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117511A (en) * | 2017-05-22 | 2017-09-01 | 长沙海川自动化设备有限公司 | Gear detector, building hoist and detection method |
-
2014
- 2014-09-30 CN CN201420575486.7U patent/CN204405085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117511A (en) * | 2017-05-22 | 2017-09-01 | 长沙海川自动化设备有限公司 | Gear detector, building hoist and detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Surya et al. | A simplified frequency-domain detection of stator turn fault in squirrel-cage induction motors using an observer coil technique | |
| US8421442B2 (en) | High sensitivity differential current transformer for insulation health monitoring | |
| CN104154853A (en) | Method for measuring wind driven generator air gap through eddy current sensors | |
| CN106568565B (en) | Online monitoring device and method for rotary machine vibration | |
| US8378645B2 (en) | Method for monitoring an electrodynamic machine | |
| Du et al. | A high sensitivity inductive sensor for blade tip clearance measurement | |
| CN106950441B (en) | A kind of sensor for on-line checking transformer DC magnetic bias | |
| CN103499022B (en) | A kind of sensor distinguishing pipeline surfaces externally and internally corrosion default | |
| CN105044601A (en) | Eccentric detection apparatus using leakage magnetic field detection induction motor and detection method thereof | |
| CN105044602A (en) | Eccentricity detection apparatus for inductor motor and detection method thereof | |
| Yousefi kia et al. | Hybrid modelling of doubly fed induction generators with inter‐turn stator fault and its detection method using wavelet analysis | |
| CN102608528A (en) | Defect detection method and device for motors | |
| CN101793492A (en) | Low-noise magnetostrictive displacement sensor | |
| Vilchis‐Rodriguez et al. | Wound rotor induction generator bearing fault modelling and detection using stator current analysis | |
| CN101359893A (en) | Method for measuring rotor angle location of permanent magnet synchronous electric motor, location sensor thereof | |
| CN205245983U (en) | Electric hot air blower | |
| Panagiotou et al. | FEM approach for diagnosis of induction machines' non‐adjacent broken rotor bars by short‐time Fourier transform spectrogram | |
| CN202372625U (en) | Device for detecting defects of motor | |
| Ma et al. | Fault diagnosis method based on multi‐source information fusion for weak interturn short circuit in synchronous condensers | |
| CN204405085U (en) | A kind of eddy current probe | |
| Armando Mazzoletti et al. | Interturn short‐circuit fault diagnosis in PMSM with partitioned stator windings | |
| CN104567963A (en) | Surface acoustic wave wireless sensor solution aimed at complex object to be detected | |
| CN202274968U (en) | Vibration temperature monitor | |
| CN103592514A (en) | Novel harmonic high-precision detection method | |
| El‐Kharashi et al. | Approach to measure the degree of the unbalanced power in induction motor for energy‐efficient use |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |