CN108872369A - A kind of vortex online test method that Automatic parameter setting alarm is limited - Google Patents
A kind of vortex online test method that Automatic parameter setting alarm is limited Download PDFInfo
- Publication number
- CN108872369A CN108872369A CN201810828645.2A CN201810828645A CN108872369A CN 108872369 A CN108872369 A CN 108872369A CN 201810828645 A CN201810828645 A CN 201810828645A CN 108872369 A CN108872369 A CN 108872369A
- Authority
- CN
- China
- Prior art keywords
- eddy current
- signal
- noise signal
- alarm
- vortex
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses the vortex online test methods that a kind of setting alarm of Automatic parameter is limited, the present invention uses the detection program and statistical analysis technique of software and hardware combining, eddy current testing instrument is persistently superimposed statistical noise signal, and according to the maximum amplitude that noise signal is calculated, automatically adjust setting signal alarm threshold, and different confidence levels are automatically formed according to rate of false alarm, rate of failing to report, realize the target of automatic adjustment system optimum Working.
Description
Technical field
The present invention relates to a kind of lossless detection method, the vortex limited more particularly to a kind of setting alarm of Automatic parameter
Online test method.
Background technique
Currently, Eddy current detector on the market, which is required to known materials characteristic, could be arranged instrument parameter, including alarm level, this
For more and more intelligentized today, the training of such professional skill, it is clear that be not suitable with the requirement of Time Technology progress.
Summary of the invention
It is an object of the invention to overcome the deficiency of the prior art, provides a kind of vortex that Automatic parameter setting alarm is limited
Online test method, the present invention use the detection program and statistical analysis technique of software and hardware combining, realize automatic adjustment system most
The target of good working condition.
The technical solution adopted by the present invention to solve the technical problems is：A kind of vortex that Automatic parameter setting alarm is limited
Online test method, it is characterised in that：Include the following steps,
A. by multiple standard workpieces by eddy current probe, the standard workpiece is by the flawless of quality inspection verifying qualification
The eddy current signal of multiple standard workpieces of eddy current probe detection acquisition is overlapped system by examined workpiece, eddy current testing instrument
Meter, due to being standard workpiece, so there is no flaw indication in eddy current signal, only noise signal, the noise signal be due to
Material error, electromagnetic noise, error in geometrical form, machine driven system error, system itself and the peripheral machinery of test object
The maximum amplitude of noise signal is calculated in the interference signal that the influences such as vibration generate, eddy current testing instrument, certainly with this amplitude
Dynamic setting signal alarm threshold；
B. during surveying, eddy current testing instrument is persistently superimposed statistical noise signal, and according to noise signal is calculated
Maximum amplitude automatically adjusts setting signal alarm threshold, and automatically forms different confidence levels according to rate of false alarm, rate of failing to report.
The invention has the advantages that a kind of vortex online test method that Automatic parameter setting alarm is limited, the present invention
Using the detection program and statistical analysis technique of software and hardware combining, eddy current testing instrument is persistently superimposed statistical noise signal, and according to
The maximum amplitude of noise signal is calculated, automatically adjusts setting signal alarm threshold, and certainly according to rate of false alarm, rate of failing to report
It is dynamic to form different confidence levels, realize the target of automatic adjustment system optimum Working.
Invention is further described in detail with reference to embodiments, but alarm is arranged in a kind of Automatic parameter of the invention
The vortex online test method limited is not limited to the embodiment.
Detailed description of the invention
The present invention is further described for middle embodiment with reference to the accompanying drawing.
Fig. 1 is that method schematic diagram of limiting of alarming is arranged in the Automatic parameter of the embodiment of the present invention.
In figure, S1/S2/ ... Sn. noise signal, F. alarm threshold.
Specific embodiment
Embodiment, such as Fig. 1, a kind of vortex online test method that Automatic parameter setting alarm is limited, it is characterised in that：Packet
Include following steps,
A. by multiple standard workpieces by eddy current probe, the standard workpiece is by the flawless of quality inspection verifying qualification
The eddy current signal of multiple standard workpieces of eddy current probe detection acquisition is overlapped system by examined workpiece, eddy current testing instrument
Meter, due to being standard workpiece, so there is no flaw indication in eddy current signal, and only noise signal S1/S2/ ... Sn, the noise
Signal S1/S2/ ... Sn is the material error due to test object, electromagnetic noise, error in geometrical form, machine driven system mistake
Noise signal is calculated in the interference signal that the influences such as difference, system itself and peripheral machinery vibration generate, eddy current testing instrument
The maximum amplitude of S1/S2/ ... Sn, with the automatic setting signal alarm threshold F of this amplitude；
B. during surveying, eddy current testing instrument is persistently superimposed statistical noise signal S1/S2/ ... Sn, and is calculated according to statistics
The maximum amplitude of noise signal S1/S2/ ... Sn automatically adjusts setting signal alarm threshold F, and certainly according to rate of false alarm, rate of failing to report
It is dynamic to form different confidence levels.
The vortex that above-described embodiment is only used to further illustrate that a kind of Automatic parameter setting alarm of the invention is limited is online
Detection method, but the invention is not limited to embodiments, it is to the above embodiments according to the technical essence of the invention
Any simple modification, equivalent change and modification are fallen within the scope of protection of technical solution of the present invention.
Claims (1)
1. a kind of vortex online test method that Automatic parameter setting alarm is limited, it is characterised in that：Include the following steps,
A. by multiple standard workpieces by eddy current probe, the standard workpiece is by the flawless of quality inspection verifying qualification
The eddy current signal of multiple standard workpieces of eddy current probe detection acquisition is overlapped system by examined workpiece, eddy current testing instrument
Meter, due to being standard workpiece, so there is no flaw indication in eddy current signal, only noise signal, the noise signal be due to
Material error, electromagnetic noise, error in geometrical form, machine driven system error, system itself and the peripheral machinery of test object
The maximum amplitude of noise signal is calculated in the interference signal that the influences such as vibration generate, eddy current testing instrument, certainly with this amplitude
Dynamic setting signal alarm threshold；
B. during surveying, eddy current testing instrument is persistently superimposed statistical noise signal, and according to noise signal is calculated
Maximum amplitude automatically adjusts setting signal alarm threshold, and automatically forms different confidence levels according to rate of false alarm, rate of failing to report.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810828645.2A CN108872369A (en) | 2018-07-25 | 2018-07-25 | A kind of vortex online test method that Automatic parameter setting alarm is limited |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810828645.2A CN108872369A (en) | 2018-07-25 | 2018-07-25 | A kind of vortex online test method that Automatic parameter setting alarm is limited |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108872369A true CN108872369A (en) | 2018-11-23 |
Family
ID=64305124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810828645.2A Withdrawn CN108872369A (en) | 2018-07-25 | 2018-07-25 | A kind of vortex online test method that Automatic parameter setting alarm is limited |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108872369A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5737445A (en) * | 1995-04-20 | 1998-04-07 | The United States Of America As Represented By The United States Department Of Energy | Automated feature detection and identification in digital point-ordered signals |
| CN103149594A (en) * | 2013-01-15 | 2013-06-12 | 同济大学 | Metal detecting door with parameter automatic setting function |
| CN106248785A (en) * | 2016-08-05 | 2016-12-21 | 爱德森（厦门）电子有限公司 | A kind of automatic eddy-current flaw detecting method of self adaptation this bulk noise of mother metal change |
| CN108053622A (en) * | 2018-01-11 | 2018-05-18 | 安徽容知日新科技股份有限公司 | A kind of alarm threshold setting method and computing device |
| CN108169323A (en) * | 2017-12-28 | 2018-06-15 | 爱德森（厦门）电子有限公司 | A kind of processing method of polymorphic structure workpiece eddy current signal |
-
2018
- 2018-07-25 CN CN201810828645.2A patent/CN108872369A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5737445A (en) * | 1995-04-20 | 1998-04-07 | The United States Of America As Represented By The United States Department Of Energy | Automated feature detection and identification in digital point-ordered signals |
| CN103149594A (en) * | 2013-01-15 | 2013-06-12 | 同济大学 | Metal detecting door with parameter automatic setting function |
| CN106248785A (en) * | 2016-08-05 | 2016-12-21 | 爱德森（厦门）电子有限公司 | A kind of automatic eddy-current flaw detecting method of self adaptation this bulk noise of mother metal change |
| CN108169323A (en) * | 2017-12-28 | 2018-06-15 | 爱德森（厦门）电子有限公司 | A kind of processing method of polymorphic structure workpiece eddy current signal |
| CN108053622A (en) * | 2018-01-11 | 2018-05-18 | 安徽容知日新科技股份有限公司 | A kind of alarm threshold setting method and computing device |
Non-Patent Citations (1)
| Title |
|---|
| 林发炳 等: "涡流在线检测中的快速去噪应用研究", 《无损检测》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4007630A (en) | Device for detecting damage on rotators | |
| US3877294A (en) | Vibration technique for rot detection in wood poles and trees | |
| GB1453065A (en) | Method of testing a workpiece for internal defects | |
| CN105973177B (en) | A kind of lossless detection method and PCB lossless detection method of back drill stub | |
| CN105351322B (en) | Test block for bolt ultrasonic testing and bolt ultrasonic testing method and device | |
| JP2007040781A (en) | Blow inspection device and blow inspection method | |
| CN105388004A (en) | Aeroengine blisk safe excess-revolution testing system and method | |
| US9442055B2 (en) | Process and apparatus for the measurement of the hardness and for the selection of agricultural products | |
| US4386526A (en) | Method for quality control of processes and construction components | |
| CN105510442B (en) | More phased array probe dynamic linkage focus detection methods | |
| CN108151870B (en) | Construction quality problem detection method based on frequency response function | |
| CN101839894A (en) | Novel digital ultrasonic flaw detection system and method | |
| CN202256267U (en) | Adjustable ultrasonic testing probe box | |
| CN108872369A (en) | A kind of vortex online test method that Automatic parameter setting alarm is limited | |
| EP2295963B1 (en) | Method and apparatus for determining the knot-to-volume ratio of wooden planks | |
| US20220099632A1 (en) | A system for in-line ultrasonic detection of fruit quality | |
| US4187725A (en) | Method for ultrasonic inspection of materials and device for effecting same | |
| CN106248785B (en) | A kind of automatic eddy-current flaw detecting method of adaptive this bulk noise of base material variation | |
| JPH10206396A (en) | Ultrasonic automatic flaw detection method for solid wheel shaft and device therefor | |
| CN104698081B (en) | A kind of driving engine gear interference bolt ultrasonic flaw detection method | |
| CN104075645B (en) | Single-oblique probe sound beam axis horizontal deviation angle detection tool and detection method thereof | |
| JP2016031310A (en) | Ultrasonic flaw detection method and ultrasonic flaw detection apparatus | |
| KR102642156B1 (en) | A reference block for nondestructive testing and the sensitivity calibration method of using the same | |
| JP6761780B2 (en) | Defect evaluation method | |
| CN204924889U (en) | Production line of soldering lug electric capacity and detection device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181123 |
|
| WW01 | Invention patent application withdrawn after publication |