CN108426822A - A kind of oil liquid abrasive grain bias sensitivity electromagnetic detection and method - Google Patents
A kind of oil liquid abrasive grain bias sensitivity electromagnetic detection and method Download PDFInfo
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- CN108426822A CN108426822A CN201810620742.2A CN201810620742A CN108426822A CN 108426822 A CN108426822 A CN 108426822A CN 201810620742 A CN201810620742 A CN 201810620742A CN 108426822 A CN108426822 A CN 108426822A
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- 238000001514 detection method Methods 0.000 title claims abstract description 79
- 230000035945 sensitivity Effects 0.000 title claims abstract description 41
- 239000007788 liquid Substances 0.000 title claims abstract description 31
- 239000006061 abrasive grain Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title abstract description 10
- 239000013528 metallic particle Substances 0.000 claims abstract description 40
- 239000004677 Nylon Substances 0.000 claims abstract description 20
- 229920001778 nylon Polymers 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 238000005553 drilling Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 7
- 238000011088 calibration curve Methods 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (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)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of oil liquid abrasive grain bias sensitivity electromagnetic detection and methods, device includes multiple metallic particles, nylon rod, electromagnetic eddy detection coil, electromagnetic eddy detector, influence of the oil liquid abrasive grain bias to detection sensitivity is examined by oil liquid abrasive grain bias sensitivity curve, detection signal is accordingly compensated according to sensitivity variations degree.
Description
Technical field
The present invention relates to a kind of non-destructive testing device and methods, more particularly to a kind of oil liquid abrasive grain bias sensitivity electromagnetism
Detection device and method.
Background technology
Engine oil metal worn particle Electromagnetic Testing Technology is more effective in present engine safe life monitoring technology
A technology, be to be based on electromagnetic eddy testing principle, sensor monitored using high speed electromagnetic monitor and high sensitive electromagnetic
The quality and quantity for implementing the metal worn particle in dynamic monitoring engine oil return pipe monitors the safe shape for judging engine with this
State assesses its useful life etc..During monitoring fluid metal worn particle using electromagnetic method, due to electromagnetic detection characteristic, work as oil
When metal worn particle in liquid deviates central axes by electromagnetic monitoring sensor, certain influence will be generated to detection sensitivity.
Invention content
It is an object of the invention to overcome the deficiency of the prior art, a kind of oil liquid abrasive grain bias sensitivity electromagnetic detection is provided
Device and method, influence of the verification oil liquid abrasive grain bias to detection sensitivity, to make a degree of compensation.
The technical solution adopted by the present invention to solve the technical problems is：A kind of oil liquid abrasive grain bias sensitivity electromagnetic detection
Device, including multiple metallic particles, nylon rod, electromagnetic eddy detection coil, electromagnetic eddy detector, it is characterised in that：It is described
The diameter of nylon rod is less than the internal diameter of electromagnetic eddy detection coil；There is the radial direction of multiple and different depth on the circumferential surface of the nylon rod
Drilling, alternatively, there is multiple axial drillings apart from axle center different distance on the end face of nylon rod；The material of multiple metallic particles
Matter, size, structure are identical, and metallic particles is used to simulate the metal worn particle in fluid, and multiple metallic particles, which are respectively put into, to be fixed on
Multiple drilling inner bottom surfaces；Electromagnetic eddy detection coil is electrically connected with electromagnetic eddy detector.
A kind of oil liquid abrasive grain bias sensitivity electromechanical detection method, using above-mentioned apparatus, it is characterised in that：Including walking as follows
Suddenly,
A. electromagnetic eddy detector encourages electromagnetic eddy detection coil, and induced field is generated in electromagnetic eddy detection coil；
B. nylon rod is at the uniform velocity passed through in electromagnetic detection coil, is fixed on multiple metallic particles of multiple drilling inner bottom surfaces successively
By electromagnetic detection coil, the induced field in electromagnetic eddy detection coil is disturbed successively, and electromagnetic eddy detection coil generates sense
Sensor current signal is transmitted to electromagnetic eddy detector, electromagnetic eddy detector by induced current signal, electromagnetic eddy detection coil
Processing stores the time domain and frequency domain parameter that multiple metallic particles disturb the sensor current signal of generation successively；Due to multiple metals
Grain is different from the distance between electromagnetic eddy detection coil inner surface, so multiple metallic particles disturb the induced electricity of generation successively
Time domain and the frequency domain parameter for flowing signal are also different；
C. using the distance between multiple metallic particles and electromagnetic eddy detection coil inner surface and the disturbance production of multiple metallic particles
The time domain and frequency domain parameter of raw sensor current signal are reference axis, make calibration curve, this calibration curve is fluid mill
The eccentric sensitivity curve of grain, examines influence of the oil liquid abrasive grain bias to detection sensitivity, further according to sensitivity variations with this
Degree accordingly compensates detection signal.
Further, a kind of oil liquid abrasive grain bias sensitivity electromechanical detection method, it is characterised in that：Using multigroup multiple
Metallic particles, material, size, the structure of multiple metallic particles in every group are identical, the material between each group is different or size not
Same or structure is different, further detects unlike material or the metallic particles of different size or different structure successively different
Sensitivity under eccentric state further accordingly compensates detection signal according to sensitivity variations degree.
The invention has the advantages that a kind of oil liquid abrasive grain bias sensitivity electromagnetic detection and method, device include
Multiple metallic particles, nylon rod, electromagnetic eddy detection coil, electromagnetic eddy detector are write music by the way that oil liquid abrasive grain bias is sensitive
Influence of the X -ray inspection X oil liquid abrasive grain bias to detection sensitivity accordingly mends detection signal according to sensitivity variations degree
It repays.
Invention is further described in detail with reference to embodiments, but a kind of oil liquid abrasive grain bias of the present invention is sensitive
Degree electromagnetic detection and method are not limited to embodiment.
Description of the drawings
The present invention is further described for middle embodiment below in conjunction with the accompanying drawings.
Fig. 1 is a kind of oil liquid abrasive grain bias sensitivity electromagnetic detection schematic diagram of the embodiment of the present invention one.
Fig. 2 is a kind of oil liquid abrasive grain bias sensitivity electromagnetic detection schematic diagram of the embodiment of the present invention two.
In figure, 1. metallic particles, 2. nylon rods, 20. drillings, 3. electromagnetic eddy detection coils, 4. electromagnetic eddy detectors.
Specific implementation mode
Embodiment one, as shown in Figure 1, a kind of oil liquid abrasive grain bias sensitivity electromagnetic detection, including multiple metals
Grain 1, nylon rod 2, electromagnetic eddy detection coil 3, electromagnetic eddy detector 4, it is characterised in that：The diameter of the nylon rod 2 is small
In the internal diameter of electromagnetic eddy detection coil 3；There is the radial drilling 20 of multiple and different depth on the circumferential surface of the nylon rod 2；It is more
Material, size, the structure of a metallic particles 1 are identical, and metallic particles 1 is used to simulate the metal worn particle in fluid, multiple metals
Grain 1, which is respectively put into, is fixed on 20 inner bottom surfaces of multiple drillings；Electromagnetic eddy detection coil 3 is electrically connected with electromagnetic eddy detector 4.
Embodiment two, as shown in Fig. 2, a kind of oil liquid abrasive grain bias sensitivity electromagnetic detection, including multiple metals
Grain 1, nylon rod 2, electromagnetic eddy detection coil 3, electromagnetic eddy detector 4, it is characterised in that：The diameter of the nylon rod 2 is small
In the internal diameter of electromagnetic eddy detection coil 3；There are multiple axial brills apart from axle center different distance on the end face of the nylon rod 2
Hole 20；Material, size, the structure of multiple metallic particles 1 are identical, and metallic particles 1 is used to simulate the metal worn particle in fluid, multiple
Metallic particles 1, which is respectively put into, is fixed on 20 inner bottom surfaces of multiple drillings；Electromagnetic eddy detection coil 3 and 4 electricity of electromagnetic eddy detector
Connection.
Embodiment, a kind of oil liquid abrasive grain bias sensitivity electromechanical detection method, using above-mentioned apparatus, it is characterised in that：Packet
Include following steps,
A. electromagnetic eddy detector 4 encourages electromagnetic eddy detection coil 3, and induced field is generated in electromagnetic eddy detection coil 3；
B. nylon rod 2 is at the uniform velocity passed through in electromagnetic detection coil, is fixed on multiple metallic particles 1 of 20 inner bottom surfaces of multiple drillings
Electromagnetic detection coil is passed sequentially through, disturbs the induced field in electromagnetic eddy detection coil 3, electromagnetic eddy detection coil 3 successively
Sensor current signal is generated, sensor current signal is transmitted to electromagnetic eddy detector 4, electromagnetism whirlpool by electromagnetic eddy detection coil 3
The stream processing of detector 4 stores time domain and frequency domain parameter that multiple metallic particles 1 disturb the sensor current signal of generation successively；Due to
Multiple metallic particles 1 are different from the distance between 3 inner surface of electromagnetic eddy detection coil, so multiple metallic particles 1 are disturbed successively
The time domain and frequency domain parameter of the sensor current signal of movable property life are also different；
C. it is disturbed using the distance between multiple metallic particles 1 and 3 inner surface of electromagnetic eddy detection coil and multiple metallic particles 1
The time domain and frequency domain parameter of the sensor current signal of movable property life are reference axis, make calibration curve, this calibration curve is oil
Liquid abrasive grain bias sensitivity curve examines influence of the oil liquid abrasive grain bias to detection sensitivity, to make to a certain degree with this
Compensation.
Embodiment, further, a kind of oil liquid abrasive grain bias sensitivity electromechanical detection method, using multigroup multiple metals
Particle 1, material, size, the structure of multiple metallic particles 1 in every group are identical, the material between each group is different or size not
Same or structure is different, further detects unlike material or the metallic particles 1 of different size or different structure successively different
Sensitivity under eccentric state further accordingly compensates detection signal according to sensitivity variations degree.
A kind of oil liquid abrasive grain bias sensitivity electromagnetic detection that above-described embodiment only is used for further illustrating the present invention
And method, but the invention is not limited in embodiments, and it is every according to the technical essence of the invention to appointing made by above example
What simple modification, equivalent change and modification, each falls in the protection domain of technical solution of the present invention.
Claims (3)
1. a kind of oil liquid abrasive grain bias sensitivity electromagnetic detection, including the detection of multiple metallic particles, nylon rod, electromagnetic eddy
Coil, electromagnetic eddy detector, it is characterised in that：The diameter of the nylon rod is less than the internal diameter of electromagnetic eddy detection coil；Institute
Stating has the radial drilling of multiple and different depth on the circumferential surface of nylon rod, alternatively, having on the end face of nylon rod multiple apart from axle center
The axial drilling of different distance；Material, size, the structure of multiple metallic particles are identical, and metallic particles is for simulating in fluid
Metal worn particle, multiple metallic particles, which are respectively put into, is fixed on multiple drilling inner bottom surfaces；Electromagnetic eddy detection coil and electromagnetism whirlpool
Flow detector electrical connection.
2. a kind of oil liquid abrasive grain bias sensitivity electromechanical detection method, using device described in claim 1, it is characterised in that：
Include the following steps,
A. electromagnetic eddy detector encourages electromagnetic eddy detection coil, and induced field is generated in electromagnetic eddy detection coil；
B. nylon rod is at the uniform velocity passed through in electromagnetic detection coil, is fixed on multiple metallic particles of multiple drilling inner bottom surfaces successively
By electromagnetic detection coil, the induced field in electromagnetic eddy detection coil is disturbed successively, and electromagnetic eddy detection coil generates sense
Sensor current signal is transmitted to electromagnetic eddy detector, electromagnetic eddy detector by induced current signal, electromagnetic eddy detection coil
Processing stores the time domain and frequency domain parameter that multiple metallic particles disturb the sensor current signal of generation successively；Due to multiple metals
Grain is different from the distance between electromagnetic eddy detection coil inner surface, so multiple metallic particles disturb the induced electricity of generation successively
Time domain and the frequency domain parameter for flowing signal are also different；
C. using the distance between multiple metallic particles and electromagnetic eddy detection coil inner surface and the disturbance production of multiple metallic particles
The time domain and frequency domain parameter of raw sensor current signal are reference axis, make calibration curve, this calibration curve is fluid mill
The eccentric sensitivity curve of grain, examines influence of the oil liquid abrasive grain bias to detection sensitivity, further according to sensitivity variations with this
Degree accordingly compensates detection signal.
3. a kind of oil liquid abrasive grain bias sensitivity electromechanical detection method according to claim 2, it is characterised in that：Further
, using multigroup multiple metallic particles, material, size, the structure of multiple metallic particles in every group are identical, between each group
Material is different or of different sizes or structure is different, successively further detection unlike material or different size or different structure
Sensitivity of the metallic particles under different eccentric states examines influence of the oil liquid abrasive grain bias to detection sensitivity with this, into
One step accordingly compensates detection signal according to sensitivity variations degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810620742.2A CN108426822B (en) | 2018-06-15 | 2018-06-15 | Electromagnetic detection device and method for eccentric sensitivity of oil abrasive particles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810620742.2A CN108426822B (en) | 2018-06-15 | 2018-06-15 | Electromagnetic detection device and method for eccentric sensitivity of oil abrasive particles |
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| Publication Number | Publication Date |
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| CN108426822A true CN108426822A (en) | 2018-08-21 |
| CN108426822B CN108426822B (en) | 2020-06-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111307671A (en) * | 2019-12-26 | 2020-06-19 | 爱德森（厦门）电子有限公司 | Honeycomb-shaped online oil metal abrasive particle electromagnetic detection sensor |
| CN113720734A (en) * | 2021-09-12 | 2021-11-30 | 爱德森（厦门）电子有限公司 | Method for removing bubble interference through electromagnetic monitoring of oil |
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| US20170269036A1 (en) * | 2014-11-28 | 2017-09-21 | Parker Hannifin Manufacturing Limited | Sensor Apparatus |
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2018
- 2018-06-15 CN CN201810620742.2A patent/CN108426822B/en active Active
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| CN102331390A (en) * | 2010-11-30 | 2012-01-25 | 蒋伟平 | Flowing oil metal particle on-line monitoring sensor |
| CN102818754A (en) * | 2012-09-06 | 2012-12-12 | 爱德森（厦门）电子有限公司 | Method and device of improving online monitoring accuracy of engine oil metal abrasive particles |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307671A (en) * | 2019-12-26 | 2020-06-19 | 爱德森（厦门）电子有限公司 | Honeycomb-shaped online oil metal abrasive particle electromagnetic detection sensor |
| CN113720734A (en) * | 2021-09-12 | 2021-11-30 | 爱德森（厦门）电子有限公司 | Method for removing bubble interference through electromagnetic monitoring of oil |
| CN113720734B (en) * | 2021-09-12 | 2024-02-27 | 爱德森（厦门）电子有限公司 | Method for removing bubble interference by electromagnetic monitoring of oil liquid |
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