CN201852771U - Oil grain counter - Google Patents

Oil grain counter Download PDF

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Publication number
CN201852771U
CN201852771U CN2010205909855U CN201020590985U CN201852771U CN 201852771 U CN201852771 U CN 201852771U CN 2010205909855 U CN2010205909855 U CN 2010205909855U CN 201020590985 U CN201020590985 U CN 201020590985U CN 201852771 U CN201852771 U CN 201852771U
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CN
China
Prior art keywords
inductance
light source
oil
counter
unit
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
Application number
CN2010205909855U
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Chinese (zh)
Inventor
金俊伟
黄文�
张春花
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Maritime University
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Dalian Maritime University
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Publication date
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Priority to CN2010205909855U priority Critical patent/CN201852771U/en
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Publication of CN201852771U publication Critical patent/CN201852771U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an oil grain counter which comprises a light source, a photoelectric diode, an inductance detecting device and an amplifying and processing device, wherein the light source and the photoelectric diode are arranged at the front half part of the detecting area of a runner; the inductance detecting device is arranged at the rear half part of the detecting area and is connected with an inductance coil; and the photoelectric diode and the inductance detecting device are connected with the amplifying and processing device respectively. The oil grain counter adopts a light-blocking method at the upper stream so as to detect the quantity of all grains, and adopts an inductance method at the lower stream so as to carry out classified counting on the oil grains. The oil grain counter can be operated simply, has compact structure, can be made into a portable counter so as to be carried to the field, and can be also made into an oil online monitor.

Description

The fluid particle collector
Technical field
The utility model relates to a kind of fluid particle collector.
Background technology
At present, known fluid particle collector adopts the shading method, can only count all particles in the fluid, can not carry out differential count to particle, want the character and the quantity of analysing particulates, need do iron spectrum or spectral analysis, analyzing iron spectrum is to allow fluid through a high strength, high-gradient magnetic field, utilize magnetic force to be deposited to successively by size on the substrate, analyze abrasive nature then by abrasive dust.But analyzing iron spectrum can not be caught representative non-metallic particle and non iron metallic particles, so diminish the judgement to the overall situation; The staff needs the skilled operating instrument of long-term training ability and obtains enough experiences, and precision is relatively poor, and equipment can't be demarcated.Spectral analysis is to utilize the principle of spectroscopy and experimental technique to determine the structure and the chemical constitution of material.But spectral analysis can not detect the sample that contains moisture, is subjected to ectocine big, for nonmetal and boundary in metal and nonmetal between element be difficult to accomplish accurate detection, and the cost of equipment is also very high.
The utility model content
In order to overcome the problem that existing fluid particle collector can not carry out differential count to particle, the utility model provides a kind of novel fluid particle collector.
The technical scheme that the utility model is adopted for achieving the above object is: a kind of fluid particle collector, it is characterized in that: comprise light source, photodiode, inductance pick-up unit, amplification and treating apparatus, light source and photodiode are installed on the first half of the detection zone of runner, the inductance pick-up unit is installed on the latter half of detection zone, be connected with telefault, electric diode, inductance pick-up unit are connected with amplification and treating apparatus respectively.
Described light source is a laser.
Described detection zone is thinner than runner.
Fluid particle collector of the present utility model, light blockage method is adopted in the upstream, be used for detecting the quantity of all particles, inductance method is adopted in the downstream, can carry out differential count to the fluid particle, this device is simple to operate, compact conformation, can be made into the portable scene of taking to, also can make the on-line monitoring of fluid.
Description of drawings
Fig. 1 is the structural drawing of fluid particle collector of the present utility model;
Fig. 2 is that fluid particle collector of the present utility model detects the Signal Processing process flow diagram;
Embodiment
Fluid particle collector as shown in Figure 1, comprise light source, photodiode, inductance pick-up unit, amplification and treating apparatus, light source and photodiode are installed on the first half of the detection zone 2 of runner 1, the inductance pick-up unit is installed on the latter half of detection zone 2, be connected with telefault 3, electric diode, inductance pick-up unit are connected with amplification and treating apparatus respectively.Light source and photodiode are formed first order pick-up unit, light source generally adopts laser, pass through detection zone through behind the parallel light tube, photodiode changes the luminous energy of accepting into electric energy, telefault and inductance pick-up unit are formed second level pick-up unit, telefault can make planar coil, also can be the helical type.First and second level arranges that by the upstream and downstream mode the two can be changed mutually.Detection zone 2 territories than other regional runners 1 more carefully, to improve accuracy of detection.Runner 1 exit is installed a negative pressure pump and is provided power for fluid flows, the two-stage of pick-up unit detects and is the upstream and downstream detection, light blockage method is adopted in the upstream, be used for detecting the quantity of all particles, inductance method is adopted in the downstream, be used for detecting the quantity of irony particle and non iron metallic particles, when a contamination particle process first order surveyed area, the meeting stop portions is by the light of the regional after testing directive photodiode of light source, the luminous energy of the acceptance of photodiode is reduced, the voltage signal that changes into also diminishes, and forms a pulse, and the size of its size and particle is directly proportional.When an irony particle during through second level surveyed area, because its magnetic permeability is greater than the magnetic permeability of fluid, thereby the inductance that makes coil becomes big, form a pulse, when a non iron metallic particles advance out-of-date, because its inner eddy current that forms can weaken original magnetic field of telefault, thereby inductance is diminished, so can form a negative pulse.Then to the detected pulse signal of pick-up unit amplify, processing such as filtering, comparison, counting, just can obtain the quantity of all particles, irony and non iron metallic particles, just obtaining nonmetallic amounts of particles through simple calculating, its impulse magnitude is the size of corresponding particle also, thereby reaches the purpose of counting.
Fig. 2 is for detecting the Signal Processing process flow diagram, detected signal at first passes through the amplification filtering device, pass through comparer then, with the voltage signal of standard relatively to determine grain size, pass through the counter pulse count then, the data that collect are delivered to microprocessor, handle, show through display then, through printer output, can also connect other device, can be compared to computer.Can also increase or reduce the number of comparer as required.

Claims (3)

1. fluid particle collector, it is characterized in that: comprise light source, photodiode, inductance pick-up unit, amplification and treating apparatus, light source and photodiode are installed on the first half of the detection zone (2) of runner (1), the inductance pick-up unit is installed on the latter half of detection zone (2), be connected with telefault (3), electric diode, inductance pick-up unit are connected with amplification and treating apparatus respectively.
2. a kind of fluid particle collector according to claim 1 is characterized in that: described light source is a laser.
3. a kind of fluid particle collector according to claim 1 is characterized in that: described detection zone (2) is thinner than runner (1).
CN2010205909855U 2010-10-29 2010-10-29 Oil grain counter Expired - Fee Related CN201852771U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205909855U CN201852771U (en) 2010-10-29 2010-10-29 Oil grain counter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205909855U CN201852771U (en) 2010-10-29 2010-10-29 Oil grain counter

Publications (1)

Publication Number Publication Date
CN201852771U true CN201852771U (en) 2011-06-01

Family

ID=44095160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205909855U Expired - Fee Related CN201852771U (en) 2010-10-29 2010-10-29 Oil grain counter

Country Status (1)

Country Link
CN (1) CN201852771U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102486448A (en) * 2010-12-01 2012-06-06 张洪朋 Oil particle distinguishing counter
CN105891058A (en) * 2016-05-12 2016-08-24 李伟波 Double-coil oil liquid monitoring method using full-band filtering, separating and shaping
CN107085191A (en) * 2017-04-19 2017-08-22 天津大学 Sensor and measuring method for permeability measurement
CN107340226A (en) * 2017-08-03 2017-11-10 江苏大学 Suspended particulates counting and detecting device and its application in a kind of fluid
CN110567860A (en) * 2019-08-28 2019-12-13 广东工业大学 Novel particle counter and particle counting method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102486448A (en) * 2010-12-01 2012-06-06 张洪朋 Oil particle distinguishing counter
CN105891058A (en) * 2016-05-12 2016-08-24 李伟波 Double-coil oil liquid monitoring method using full-band filtering, separating and shaping
CN107085191A (en) * 2017-04-19 2017-08-22 天津大学 Sensor and measuring method for permeability measurement
CN107340226A (en) * 2017-08-03 2017-11-10 江苏大学 Suspended particulates counting and detecting device and its application in a kind of fluid
CN110567860A (en) * 2019-08-28 2019-12-13 广东工业大学 Novel particle counter and particle counting method

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110601

Termination date: 20111029