CN106931868A - A kind of eddy current probe position detecting device and method based on magnetic sensor - Google Patents
A kind of eddy current probe position detecting device and method based on magnetic sensor Download PDFInfo
- Publication number
- CN106931868A CN106931868A CN201511020269.7A CN201511020269A CN106931868A CN 106931868 A CN106931868 A CN 106931868A CN 201511020269 A CN201511020269 A CN 201511020269A CN 106931868 A CN106931868 A CN 106931868A
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- China
- Prior art keywords
- magnetic sensor
- eddy current
- current probe
- driver
- control module
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- 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
A kind of eddy current probe position detecting device and method based on magnetic sensor include that eddy current probe 1, eddy current probe 1 are connected with motor 2, motor 2 is connected with driver 3, control module 4 is connected with driver 3, Magnetic Sensor 501, Magnetic Sensor 502 are installed in the difference both sides of eddy current probe 1, Magnetic Sensor 501, Magnetic Sensor 502 are connected with control module 4 also includes power module 6, and it is respectively driver 3, control module 4, Magnetic Sensor 501, Magnetic Sensor 502 and provides power supply.
Description
Technical field
The invention belongs to position detection field, and in particular to a kind of eddy current probe position based on magnetic sensor
Detection means and method.
Background technology
EDDY CURRENT is one of important method in Non-Destructive Testing, including used in nuclear power station light-wall pipe (steam hair
Raw device heat-transfer pipe, neutron flux measurement finger sleeve, condenser titanium pipe etc.) Non-Destructive Testing in interior many necks
Domain has a wide range of applications.When Eddy Current Nondestructive Testing is carried out to light-wall pipe, it is necessary to pass through vortex probe pushing-pulling
Eddy current probe is pushed device the position specified in light-wall pipe, is then carried out while being pulled back to probe thin
The data acquisition of wall pipe eddy current signal, realizes the EDDY CURRENT of light-wall pipe.When probe pullback motion pulls out dress to pushing away
, it is necessary in giving control system by the positional information, be said the word in control system and allow probe to stop fortune when putting
It is dynamic, damaged with preventing probe from throwing away.At present in existing inlet vortex heat-transfer pipe detection automation equipment,
Probe positions detection means uses analog sensor, and analog signalses are easily disturbed, and make
With detection error is had after a period of time, it is necessary to adjust the parameter of analog sensor to ensure precision, use
Trouble.This patent is exactly that position of being pulled back to probe is realized by the principle changed using magnetic sensor magnetic current
Automatic detection, so as to reach effectively protection probe purpose.
The content of the invention
It is an object of the invention to propose a kind of eddy current probe position detecting device based on magnetic sensor and side
Method, physical damage caused by avoiding probe from being thrown away due to high-speed motion.
Technical scheme is as follows：A kind of eddy current probe position detecting device based on magnetic sensor,
Including eddy current probe, eddy current probe and motor connection, motor is connected with driver, control module
It is connected with driver, there is Magnetic Sensor by eddy current probe, Magnetic Sensor is connected with control module, also
Including power module, it is respectively driver, control module, Magnetic Sensor and provides power supply.
The Magnetic Sensor includes Magnetic Sensor A, Magnetic Sensor B, pacifies in the difference both sides of eddy current probe
Dress Magnetic Sensor A, Magnetic Sensor B.
A kind of eddy current probe method for detecting position based on magnetic sensor, comprises the following steps：
Step one：Control module sends instruction, driver drives motor and then drive EDDY CURRENT to driver
Probe movement；
Step 2：When eddy current probe passes through its sensitive surface for the first time, Magnetic Sensor A, Magnetic Sensor B are defeated
Go out low level signal to control module, so as to learn the position of eddy current probe；
Step 3：When eddy current probe again passes by its sensitive surface, Magnetic Sensor A, Magnetic Sensor B are defeated
Go out high level signal to control module, control module issues a command to driver, stop motor movement, so as to stop
Only convection current detection probe is pulled back, and completes eddy current probe Position automatic detection process.
Magnetic Sensor A, Magnetic Sensor B output low level signal are 0V in the step 2.
In the step 3, Magnetic Sensor A, Magnetic Sensor B output high level signal are 24V.
Remarkable result of the invention is：It is converted into popping one's head in by the signal of Magnetic Sensor cutting magnetic field generation
Digital quantity voltage signal is exported, and system signal processing procedure is enormously simplify, while improve detecting system
Reliability and precision, protection probe safety.
Brief description of the drawings
Fig. 1 is the eddy current probe position detecting device schematic diagram based on magnetic sensor of the present invention
In figure：1 eddy current probe, 2 motors, 3 drivers, 4 control modules, 501 Magnetic Sensor A, 502
Magnetic Sensor B, 6 power modules,
Specific embodiment
A kind of eddy current probe position detecting device and method based on magnetic sensor
It is connected with motor 2 including eddy current probe 1, eddy current probe 1, motor 2 connects with driver 3
Connect, control module 4 is connected with driver 3, Magnetic Sensor is installed in the difference both sides of eddy current probe 1
501st, Magnetic Sensor 502, Magnetic Sensor 501, Magnetic Sensor 502 are connected with control module 4
Also include power module 6, it is respectively driver 3, control module 4, Magnetic Sensor 501, magnetic and passes
Sensor 502 provides power supply.
A kind of eddy current probe method for detecting position based on magnetic sensor, comprises the following steps
Step one：Control module 4 sends instruction, the motor 2 of driver 3 and then drive to driver 3
Eddy current probe 1 is moved
Step 2：When eddy current probe 1 passes through its sensitive surface for the first time, Magnetic Sensor 501, Magnetic Sensor
502 export low level signal, be 0V to control module 4, so as to learn the position of eddy current probe 1,
Step 3：When eddy current probe 1 again passes by its sensitive surface, Magnetic Sensor 501, Magnetic Sensor
502 export high level signal, be 24V to control module 4, control module 4 issues a command to driver 3, stops electricity
Machine 2 is moved, so as to stop pulling back for convection current detection probe 1, completes an eddy current probe Position automatic detection mistake
Journey.
Claims (5)
1. a kind of eddy current probe position detecting device based on magnetic sensor, it is characterised in that：Including vortex
Detection probe (1), eddy current probe (1) are connected with motor (2), and motor (2) is connected with driver (3), control
Molding block (4) is connected with driver (3), there is Magnetic Sensor, Magnetic Sensor and control by eddy current probe (1)
Molding block (4) is connected, and also including power module (6), it is respectively driver (3), control module (4), magnetic
Sensor provides power supply.
2. a kind of eddy current probe position detecting device based on magnetic sensor according to claim 1,
It is characterized in that：The Magnetic Sensor includes Magnetic Sensor A (501), Magnetic Sensor B (502), is examined in vortex
Magnetic Sensor A (501), Magnetic Sensor B (502) are installed the difference both sides of probing head (1).
3. a kind of eddy current probe method for detecting position based on magnetic sensor, comprises the following steps：
Step one：Control module (4) sends instruction to driver (3), driver (3) motor (2) and then
Drive eddy current probe (1) motion；
Step 2：When eddy current probe (1) passes through its sensitive surface for the first time, Magnetic Sensor A (501), magnetic are passed
Sensor B (502) exports low level signal and gives control module (4), so as to learn the position of eddy current probe (1)；
Step 3：When eddy current probe (1) again passes by its sensitive surface, Magnetic Sensor A (501), magnetic are passed
Sensor B (502) exports high level signal and issues a command to driver (3) to control module (4), control module (4),
Stop motor (2) motion, so as to stop pulling back for convection current detection probe (1), complete an eddy current probe position
Automatic detection process.
4. a kind of eddy current probe method for detecting position based on magnetic sensor according to claim 3, its
It is characterised by：Magnetic Sensor A (501), Magnetic Sensor B (502) output low level signal are in the step 2
0V。
5. a kind of eddy current probe method for detecting position based on magnetic sensor according to claim 3, its
It is characterised by：In the step 3, Magnetic Sensor A (501), Magnetic Sensor B (502) output high level signal
It is 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020269.7A CN106931868A (en) | 2015-12-30 | 2015-12-30 | A kind of eddy current probe position detecting device and method based on magnetic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020269.7A CN106931868A (en) | 2015-12-30 | 2015-12-30 | A kind of eddy current probe position detecting device and method based on magnetic sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106931868A true CN106931868A (en) | 2017-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511020269.7A Pending CN106931868A (en) | 2015-12-30 | 2015-12-30 | A kind of eddy current probe position detecting device and method based on magnetic sensor |
Country Status (1)
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|---|---|
| CN (1) | CN106931868A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6196401A (en) * | 1984-10-18 | 1986-05-15 | Kobe Steel Ltd | Method for measuring thickness of liner on the basis of two frequency |
| CN203658309U (en) * | 2013-12-05 | 2014-06-18 | 核动力运行研究所 | Pushing-pulling force limiter of vortex detection probe |
| CN104749243A (en) * | 2013-12-31 | 2015-07-01 | 中核武汉核电运行技术股份有限公司 | Eddy-signal-recognition-technology-based full-automatic data acquisition method |
-
2015
- 2015-12-30 CN CN201511020269.7A patent/CN106931868A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6196401A (en) * | 1984-10-18 | 1986-05-15 | Kobe Steel Ltd | Method for measuring thickness of liner on the basis of two frequency |
| CN203658309U (en) * | 2013-12-05 | 2014-06-18 | 核动力运行研究所 | Pushing-pulling force limiter of vortex detection probe |
| CN104749243A (en) * | 2013-12-31 | 2015-07-01 | 中核武汉核电运行技术股份有限公司 | Eddy-signal-recognition-technology-based full-automatic data acquisition method |
Non-Patent Citations (1)
| Title |
|---|
| 李林凯 等: "电磁涡流无损探伤中探头位置检测装置", 《仪表技术与传感器》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |
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| RJ01 | Rejection of invention patent application after publication |