CN201852771U - Oil grain counter - Google Patents
Oil grain counter Download PDFInfo
- 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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- inductance
- light source
- oil
- counter
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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
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).
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)
| 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 |
-
2010
- 2010-10-29 CN CN2010205909855U patent/CN201852771U/en not_active Expired - Fee Related
Cited By (5)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |