CN202734951U - Integrated current vortex distance measuring device - Google Patents
Integrated current vortex distance measuring device Download PDFInfo
- Publication number
- CN202734951U CN202734951U CN 201220388238 CN201220388238U CN202734951U CN 202734951 U CN202734951 U CN 202734951U CN 201220388238 CN201220388238 CN 201220388238 CN 201220388238 U CN201220388238 U CN 201220388238U CN 202734951 U CN202734951 U CN 202734951U
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- main body
- distance measuring
- current vortex
- circuit
- probe
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Abstract
The utility model discloses an integrated current vortex distance measuring device, comprising a main body and a working circuit inside the main body; wherein a front section of the main body is provided with a plastic probe, a casing at a middle section of the main body is provided with threads and fastening nuts used for fixing the main body and equipment to be detected, a rear section of the main body is provided with a transmission line; the transmission line is connected with the main body through a protection plastic; and the working circuit comprises a preposed probe, a detection circuit, an operational amplifier, a linearity correction and transform circuit, a high-frequency current oscillator, and a DC (Direct Current) power source. The integrated current vortex distance measuring device of the utility model used for detecting current vortex vibration has the advantages of high reliability, strong anti-interference capability, simple structure, and capacity for effectively protecting safe operation of the equipment by monitoring large-scale rotating mechanical equipment for a long time in real time.
Description
Technical field
The utility model relates to a kind of pick-up unit, is specifically related to a kind of integrated current vortex distance measuring equipment.
Background technology
In Engineering Vibration, running status and the operational failure analysis of rotating machinery and reciprocating type running machinery, adopting the vibration displacement monitoring is the method that knows best, it has time performance most.Connect the misaligning of rotors, bearing wear, axle crackle and spinner blade mainly are reflected in the aspects such as amplitude, phase place and frequency of vibration with the phenomena of the failure such as impact and rub of housing variation for the imbalance of rotor, two, the information of these most criticals all is easy to measure.But traditional sensor is with probe and prime amplifier and transmission circuit with a transmission line separately, so that error occurs in signal transmission and the processing procedure.
For solving above-mentioned deficiency of the prior art, the utility model provides a kind of new solution.
The utility model content
Technical problem to be solved in the utility model is; in order to solve above-mentioned the deficiencies in the prior art; a kind of integrated current vortex distance measuring equipment is provided; this integrated current vortex distance measuring equipment reliability is high, non-cpntact measurement, and antijamming capability is strong; be not subjected to the impact of the media such as profit; the characteristics such as simple in structure to the long-term Real-Time Monitoring of large rotating machinery equipment, are protected the safe operation of equipment effectively.
To achieve the above object of the invention, the technical scheme that the utility model adopts is: a kind of integrated current vortex distance measuring equipment is provided, it is characterized in that: the operating circuit that comprises main body and body interior; Described main body leading portion is provided with the plastics probe, and main body stage casing shell is provided with screw thread and is used for the clamp nut of stationary body and equipment to be detected, and the main body back segment is provided with transmission line; Described transmission line is connected with main body by the protection plastics;
Described operating circuit comprises preposition probe, testing circuit, operational amplifier, linearity correction and transmission circuit, high-frequency current oscillator and direct supply;
Described direct supply is connected with high-frequency current oscillator, preposition probe, testing circuit, operational amplifier and linearity correction and transmission circuit respectively;
Described high-frequency current oscillator is connected with preposition probe; The output terminal of described preposition probe is connected with testing circuit; The output terminal of described testing circuit is connected with the input end of operational amplifier; The output terminal of described operational amplifier is connected with the input end of linearity correction and transmission circuit.
Preferably, the cylindrical structure of described main body, and adopt stainless steel to make.
Preferably, described transmission line is comprised of four fine rules, is respectively output signal line, voltage signal line, concentric line and shielding line.
The utility model has compared to existing technology and has following advantage:
1, integrated level is high, and volume is little, the convenient arrangement;
2, after treatment more outward transmission of original signal, so that the transmission interference reduction, final measurement is more accurate;
3, dynamic response is good, and measurement range is wide;
4, high-seal, antijamming capability is strong, and waterproof is dustproof, can work under complex environment.
Description of drawings
The integrated current vortex distance measuring equipment of Fig. 1 structural representation;
The integrated current vortex distance measuring equipment of Fig. 2 theory diagram.
Wherein, 1, main body; 2, plastics probe; 3, screw thread; 4, clamp nut; 5, protection plastics; 6, transmission line.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
To shown in Figure 2, this integrated current vortex distance measuring equipment is characterized in that: the operating circuit that comprises main body 1 and main body 1 inside such as Fig. 1; Described main body 1 leading portion is provided with plastics probe 2, and main body 1 stage casing shell is provided with screw thread 3 and is used for the clamp nut 4 of stationary body 1 and equipment to be detected, and main body 1 back segment is provided with transmission line 6; Described transmission line 6 is connected with main body 1 by protection plastics 5; Described operating circuit comprises preposition probe, testing circuit, operational amplifier, linearity correction and transmission circuit, high-frequency current oscillator and direct supply; Described direct supply is connected with high-frequency current oscillator, preposition probe, testing circuit, operational amplifier and linearity correction and transmission circuit respectively; Described high-frequency current oscillator is connected with preposition probe; The output terminal of described preposition probe is connected with testing circuit; The output terminal of described testing circuit is connected with the input end of operational amplifier; The output terminal of described operational amplifier is connected with the input end of linearity correction and transmission circuit.
Described main body 1 cylindrical structure, and adopt stainless steel to make.Described transmission line 6 is comprised of four fine rules, is respectively output signal line, voltage signal line, concentric line and shielding line.
As shown in Figure 1, this integrated current vortex distance measuring equipment comprises main body 1, main body 1 leading portion is provided with plastics probe 2, main body 1 adopts the stainless steel column structure, the main body 1 outer screw thread 3 that is arranged with, at practical on-the-spot steelwork with the hole of a certain size size that only needs, just available two clamp nuts 4 are fixed on pick-up unit on the iron structure, mount and dismount all very convenient; Afterbody mainly is the coupling part of protection transmission line 6 and main body 1 for protection plastics 5, prevents that it from being damaged because of External Force Acting, with solid seal glue the coupling part is sealed in addition, keeps whole good sealing property, makes integral waterproofing, and is dustproof.Transmission line 6 is comprised of four fine rules, is respectively output signal line, voltage power line, and concentric line, shielding line, the outside is a plastic wrapper, plays the protection internal transmission line.
As shown in Figure 2, the preposition probe of sensor mainly is comprised of coil, the function of high-frequency current oscillator is to provide high-frequency current signal to preposition probe, so that coil produces high frequency magnetic field, preposition probe is started working, and when the distance between tested metal object and the probe changed, the Q value of probe coil changed, the variation of Q value causes the variation of oscillating voltage amplitude, and then this oscillating voltage signal with variable in distance is delivered to the testing circuit detection, filtering is processed; The weak voltage signals that to process afterwards carries out signal by operational amplification circuit and amplifies, to make things convenient for the processing in later stage, voltage signal after the amplification also needs to carry out linear compensation, to reduce degree of distortion, then according to needing through the transmission circuit processing, it is become current signal, again with its output, export to the signals collecting case.
When product is installed, only need according to needing, detector is installed in a certain ad-hoc location of hardware to be measured, then detector and signals collecting case are coupled together with cable transmission line, after all installing, be electrified the source, the utility model just can begin to have measured the vibration displacement situation of Devices to test.
In sum, integrated current vortex distance measuring equipment reliability provided by the utility model is high, untouchable measurement; the characteristics such as antijamming capability is strong, is not subjected to the impact of the media such as profit, and is simple in structure; to the long-term Real-Time Monitoring of large rotating machinery equipment, effectively protect the safe operation of equipment.
Although by reference to the accompanying drawings embodiment of the present utility model is described in detail, should not be construed as the restriction to the protection domain of this patent.In the described scope of claims, the various modifications that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (3)
1. an integrated current vortex distance measuring equipment is characterized in that: comprise the operating circuit that main body (1) and main body (1) are inner; Described main body (1) leading portion is provided with plastics probes (2), and main body (1) stage casing shell is provided with screw thread (3) and is used for the clamp nut (4) of stationary body (1) and equipment to be detected, and main body (1) back segment is provided with transmission line (6); Described transmission line (6) is connected with main body (1) by protection plastics (5);
Described operating circuit comprises preposition probe, testing circuit, operational amplifier, linearity correction and transmission circuit, high-frequency current oscillator and direct supply;
Described direct supply is connected with high-frequency current oscillator, preposition probe, testing circuit, operational amplifier and linearity correction and transmission circuit respectively;
Described high-frequency current oscillator is connected with preposition probe; The output terminal of described preposition probe is connected with testing circuit; The output terminal of described testing circuit is connected with the input end of operational amplifier; The output terminal of described operational amplifier is connected with the input end of linearity correction and transmission circuit.
2. integrated current vortex distance measuring equipment according to claim 1 is characterized in that: the cylindrical structure of described main body (1), and adopt stainless steel to make.
3. integrated current vortex distance measuring equipment according to claim 1, it is characterized in that: described transmission line (6) is comprised of four fine rules, is respectively output signal line, voltage signal line, concentric line and shielding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388238 CN202734951U (en) | 2012-08-07 | 2012-08-07 | Integrated current vortex distance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388238 CN202734951U (en) | 2012-08-07 | 2012-08-07 | Integrated current vortex distance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734951U true CN202734951U (en) | 2013-02-13 |
Family
ID=47660640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220388238 Expired - Fee Related CN202734951U (en) | 2012-08-07 | 2012-08-07 | Integrated current vortex distance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202734951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277109A (en) * | 2015-09-02 | 2016-01-27 | 西南交通大学 | Displacement sensor outputting digital frequencies |
| CN105953715A (en) * | 2016-06-02 | 2016-09-21 | 中国人民解放军海军工程大学 | Intelligent bus eddy current displacement sensor with integrated structure |
-
2012
- 2012-08-07 CN CN 201220388238 patent/CN202734951U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277109A (en) * | 2015-09-02 | 2016-01-27 | 西南交通大学 | Displacement sensor outputting digital frequencies |
| CN105277109B (en) * | 2015-09-02 | 2017-01-25 | 西南交通大学 | Displacement sensor outputting digital frequencies |
| CN105953715A (en) * | 2016-06-02 | 2016-09-21 | 中国人民解放军海军工程大学 | Intelligent bus eddy current displacement sensor with integrated structure |
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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: 20130213 Termination date: 20140807 |
|
| EXPY | Termination of patent right or utility model |