CN204694202U - A kind of eddy current Thicknesser probe - Google Patents
A kind of eddy current Thicknesser probe Download PDFInfo
- Publication number
- CN204694202U CN204694202U CN201520196512.XU CN201520196512U CN204694202U CN 204694202 U CN204694202 U CN 204694202U CN 201520196512 U CN201520196512 U CN 201520196512U CN 204694202 U CN204694202 U CN 204694202U
- Authority
- CN
- China
- Prior art keywords
- eddy current
- handle
- trigger
- current sensor
- 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.)
- Expired - Fee Related
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to a kind of eddy current Thicknesser probe, comprise handle, eddy current sensor, trigger, pressure spring, spring leaf, eddy current sensor is arranged on the end of handle, trigger is arranged on handle by the mode of hinge joint, trigger inside is provided with pressure spring, and the two ends of pressure spring are pressed on trigger and handle respectively, and spring leaf one end is fixed on trigger, the other end is relative with the measuring junction of eddy current sensor, and the signal wire of eddy current sensor passes from handle inner and is connected with control system.Probe designs is become clamp operating grip by the utility model, one-handed performance, is very applicable to onsite application situation.Spring leaf makes the agate plate bottom eddy current sensor and hollow blade fit with constant pressure, traverse measurement head gently, the thickness scanning to whole measuring surface can be completed, ensure that repeatability and the consistance of measurement result, have Measurement Resolution high, measure rapidly, feature that handled easily, accuracy are high, reliable and stable.
Description
Technical field
The utility model relates to a kind of Thicknesser probe, and especially a kind of eddy current Thicknesser probe, for the in-site measurement of hollow blade wall thickness.
Background technology
Blade of aviation engine is high temperature resistant monocrystal material hot investment casting, blade is generally hollow-core construction, vanelets wall thickness parameter is 0.2-3mm scope, because engine blade contour shape is very complicated, the curvature of convex surface and concave surface is all larger, employing three coordinate measuring machines etc. are consuming time longer, are not suitable for the requirement of blade production line Site Detection.Current measuring method generally uses ultrasonic wave measuring method, and that the diameter due to existing ultrasonic probe is minimum is Φ 6mm, can not differentiate the detect thickness of below 0.5mm.Because blade surface Curvature varying is large, larger-diameter ultrasonic probe cannot be fitted completely with blade surface, and cause measuring error large, measuring process is loaded down with trivial details, and efficiency is very low.Simultaneously, curvature all more complicated of blade of aviation engine outline convex surface and concave surface, adopt the method that contact slide is measured, the manually mode of operation of pressing and mobile eddy current sensor, because the pressure dynamics of Manual press changes greatly, be difficult to ensure that eddy current sensor overlaps with measurement point normal to a surface, these all can cause very large measuring error, even cannot complete measurement.
Summary of the invention
The purpose of this utility model is to provide a kind of eddy current Thicknesser probe, be applicable to the requirement of blade production line Site Detection, the pressure dynamics due to Manual press is avoided to change the measuring error problem greatly caused greatly, have Measurement Resolution high, measure rapidly, feature that handled easily, accuracy are high, reliable and stable, to solve the technical barrier in aeromotor hollow blade Site Detection.
The technical solution of the utility model is, eddy current Thicknesser probe comprises handle, eddy current sensor, trigger, pressure spring, spring leaf, eddy current sensor is arranged on the end of handle, trigger is arranged on handle by the mode of hinge joint, trigger inside is provided with pressure spring, the two ends of pressure spring are pressed on trigger and handle respectively, spring leaf one end is fixed on trigger, the other end is relative with the measuring junction of eddy current sensor, and the signal wire of eddy current sensor passes from handle inner and is connected with control system.Described handle be also provided with temperature sensor and measure button, the signal wire of temperature sensor and measurement button to pass from handle inner and to be connected with control system.Described eddy current sensor comprises magnetic core, drive coil, agate plate, metal-coating, coil is arranged on magnetic core, metal-coating is tubular, bottom is fixed on handle, magnetic core and coil are arranged on metal-coating inside, the end winding support of magnetic core has agate plate, and the openend of metal-coating extends to agate plate position.Described magnetic core be also provided with measuring coil and compensating coil and lay respectively at drive coil both sides, measuring coil is positioned at agate plate direction, and described measuring coil and compensating coil are connected in series, and the number of turn is identical, and rotation direction is contrary; Described drive coil, measuring coil and compensating coil outside are also provided with coil protect lining.Described magnetic core size is 2.5 × 2.5 × 20mm, and material is ferrite.
Probe designs is become clamp operating grip by the utility model, one-handed performance, is very applicable to onsite application situation.Spring leaf makes the agate plate bottom eddy current sensor and hollow blade fit with constant pressure, and traverse measurement head gently can complete the thickness scanning to whole measuring surface, ensure that repeatability and the consistance of measurement result.Operator, while scanning, presses measurement button and the measurement result of this point can be stored into data list, apply fast very convenient, under the prerequisite ensureing measuring accuracy, substantially increase detection efficiency.Probe is installed temperature sensor, temperature compensation has been carried out to in-site measurement signal, substantially increases measuring accuracy, widened range of application.Have employed long core structure, drive coil and measuring coil are directly wrapped on magnetic core, improve the penetration capacity of eddy current sensor, expand measurement range, reduce the diameter of eddy current coil; Measuring coil and compensating coil be coaxial oppositely coiling on magnetic core, is connected in series, and environment electromagnetics interference is contrary on the impact of two coils, substantially reduces the impact of temperature parameter on eddy current sensor after two coils connected in series superpositions.Agate plate improves the wearing quality of sensor, increases the service life; Metal-coating is as the fixed support of sensor, its openend extends to agate plate position, this novel packaged type limits the magnetic fields point of drive coil, when measuring curved surface of high curvature, effectively can reduce the induction region of eddy current, and then reduce the impact of the crown eddy current because of curved surface generation, improve measuring accuracy.The utility model is by the design of hommization, simple to operate, be applicable to applying on a production line, and avoid the pressure dynamics due to Manual press to change the measuring error problem greatly caused greatly, have Measurement Resolution high, measure rapidly, feature that handled easily, accuracy are high, reliable and stable, widespread use on the production line of the blade workshop of Aviation Enterprise, result of use is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of eddy current sensor;
Fig. 3 is that existing eddy current sensor produces crown eddy current schematic diagram;
Fig. 4 is that eddy current sensor of the present utility model produces crown eddy current schematic diagram.
Embodiment
As shown in the figure, eddy current Thicknesser probe comprises handle 1, eddy current sensor 2, trigger 3, pressure spring 4, spring leaf 5, eddy current sensor 2 is arranged on the end of handle 1, trigger 3 is arranged on handle 1 by the mode of hinge joint, trigger 3 inside is provided with pressure spring 4, the two ends of pressure spring 4 are pressed on trigger 3 and handle 1 respectively, spring leaf 5 one end is fixed on trigger 3, the other end is relative with the measuring junction of eddy current sensor 2, and the signal wire of eddy current sensor 2 passes from handle 1 inside and is connected with control system.Described handle 1 be also provided with temperature sensor 6 and measure button 7, temperature sensor 6 passes with the signal wire measuring button 7 from handle 1 inside and is connected with control system.Described eddy current sensor 2 comprises magnetic core 21, drive coil 22, agate plate 23, metal-coating 24, drive coil 22 is arranged on magnetic core 21, metal-coating 24 is tubular, bottom is fixed on handle 1, it is inner that magnetic core 21 and drive coil 22 are arranged on metal-coating 24, the end winding support of magnetic core has agate plate 23, and the openend of metal-coating 24 extends to agate plate 23 position.Described magnetic core 21 be also provided with measuring coil 26 and compensating coil 27 and lay respectively at drive coil 22 both sides, measuring coil 26 is positioned at agate plate 25 direction, and described measuring coil 26 and compensating coil 27 are connected in series, and the number of turn is identical, and rotation direction is contrary; Described drive coil 22, measuring coil 26 and compensating coil 27 outside are also provided with coil protect lining.Described magnetic core 21 is of a size of 2.5 × 2.5 × 20mm, and material is ferrite.
Claims (6)
1. an eddy current Thicknesser probe, it is characterized in that, described probe comprises handle (1), eddy current sensor (2), trigger (3), pressure spring (4), spring leaf (5), eddy current sensor (2) is arranged on the end of handle (1), trigger (3) is arranged on handle (1) by the mode of hinge joint, trigger (3) inside is provided with pressure spring (4), the two ends of pressure spring (4) are pressed on trigger (3) and handle (1) respectively, spring leaf (5) one end is fixed on trigger (3), the other end is relative with the measuring junction of eddy current sensor (2), the signal wire of eddy current sensor (2) passes from handle (1) inside and is connected with control system.
2. eddy current Thicknesser probe as claimed in claim 1, it is characterized in that, described handle (1) be also provided with temperature sensor (6) and measure button (7), temperature sensor (6) passes with the signal wire measuring button (7) from handle (1) inside and is connected with control system.
3. eddy current Thicknesser probe as claimed in claim 1, it is characterized in that, described eddy current sensor (2) comprises magnetic core (21), drive coil (22), agate plate (23), metal-coating (24), drive coil (22) is arranged on magnetic core (21), metal-coating (24) is tubular, bottom is fixed on handle (1), it is inner that magnetic core (21) and drive coil (22) are arranged on metal-coating (24), the end winding support of magnetic core has agate plate (23), the openend of metal-coating (24) extends to agate plate (23) position.
4. eddy current Thicknesser probe as claimed in claim 3, it is characterized in that, described magnetic core (21) be also provided with measuring coil (26) and compensating coil (27) and lay respectively at drive coil (22) both sides, measuring coil (26) is positioned at agate plate (25) direction, described measuring coil (26) and compensating coil (27) are connected in series, the number of turn is identical, and rotation direction is contrary.
5. eddy current Thicknesser probe as claimed in claim 4, it is characterized in that, described drive coil (22), measuring coil (26) and compensating coil (27) outside are also provided with coil protect lining.
6. the eddy current Thicknesser probe as described in claim 3 or 4, is characterized in that, described magnetic core (21) is of a size of 2.5 × 2.5 × 20mm, and material is ferrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196512.XU CN204694202U (en) | 2015-04-02 | 2015-04-02 | A kind of eddy current Thicknesser probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520196512.XU CN204694202U (en) | 2015-04-02 | 2015-04-02 | A kind of eddy current Thicknesser probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204694202U true CN204694202U (en) | 2015-10-07 |
Family
ID=54234479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520196512.XU Expired - Fee Related CN204694202U (en) | 2015-04-02 | 2015-04-02 | A kind of eddy current Thicknesser probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204694202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807393A (en) * | 2015-04-02 | 2015-07-29 | 哈尔滨东安发动机（集团）有限公司 | Vortex thickness measuring probe |
-
2015
- 2015-04-02 CN CN201520196512.XU patent/CN204694202U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807393A (en) * | 2015-04-02 | 2015-07-29 | 哈尔滨东安发动机（集团）有限公司 | Vortex thickness measuring probe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103487503B (en) | A kind of rotating magnetic field eddy current probe | |
| CN102435496B (en) | Method for detecting welding line in friction welding of axle head of axle housing | |
| CN204694202U (en) | A kind of eddy current Thicknesser probe | |
| CN203432485U (en) | Radial circle run-out detecting device for circular groove bottom circle of piston to axis of skirt portion | |
| CN104807393A (en) | Vortex thickness measuring probe | |
| CN204389438U (en) | A kind of eddy current right angle detection probe | |
| CN109282778A (en) | A kind of novel power battery thickness of the shell detection fixture | |
| CN2927014Y (en) | Lever-type steel-pipe internal-wall temperature sensing device | |
| CN203798284U (en) | Large-diameter measuring device | |
| CN106017263A (en) | Circular cylinder deformation degree detection tool capable of achieving automatic pressing | |
| CN203758970U (en) | Device for testing performance of ultrasonic arrayed probe | |
| CN203745189U (en) | Crank centering device used for crankshaft fatigue test | |
| CN103808216A (en) | Micrometer | |
| CN202171432U (en) | Cone hole bottom diameter measuring tool | |
| CN210426420U (en) | Radial deformation measuring device based on LVDT sensor | |
| CN203185124U (en) | Cylinder hole centering device for honing machine | |
| CN204346973U (en) | The split type detection grid of a kind of Multi probe Magnetic Memory | |
| CN201867148U (en) | Special detection tool for measuring long shaft outer diameter and end surface jumping value and shaft-end distance of crank shaft | |
| CN205919791U (en) | Veneer reeling machine edge rolling circle measuring device | |
| CN104949889A (en) | Whole flexural testing method and device of ultrathin grinding wheel | |
| CN204346969U (en) | A kind of Multi probe Magnetic memory testing fixed support | |
| CN205980988U (en) | Circular cylinder degree of deformation that can automatic compress tightly detects frock | |
| CN202582416U (en) | Welding fork symmetry universal measuring device | |
| CN205748324U (en) | A kind of vertical rotation platform of pushing down detects device | |
| CN203785653U (en) | Injector core barrel clamp imprint detection device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20200402 |