CN2705791Y - Grain fatty acid value detector - Google Patents
Grain fatty acid value detector Download PDFInfo
- Publication number
- CN2705791Y CN2705791Y CN 200420034691 CN200420034691U CN2705791Y CN 2705791 Y CN2705791 Y CN 2705791Y CN 200420034691 CN200420034691 CN 200420034691 CN 200420034691 U CN200420034691 U CN 200420034691U CN 2705791 Y CN2705791 Y CN 2705791Y
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- CN
- China
- Prior art keywords
- fatty acid
- acid value
- grain
- photodiode
- darkroom
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- Expired - Fee Related
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- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provides a kind of titrimetric grain fatty acid value of grain fatty acid value analyzer that is used for.It is made up of full-antomatic buret, liquid storage bottle, solenoid valve, measuring cup, measurement darkroom, light emitting diode, photodiode, traditional electromagnetic stirring system and common PC microprocessing systems.Its major technique measure is that light emitting diode and straight penetrate type optical sensor of photodiode formation are set respectively on relative two side, measurement darkroom.This grain fatty acid value analyzer is simple in structure, easy to operate, has improved the accuracy of mensuration and the comparability of measurement result greatly, can provide reliable basis for accurately estimating grain quality.
Description
Affiliated technical field
The utility model belongs to dripping control device, relates generally to the terminal point control device that a kind of terminal colour that is used for the titrimetry of grain fatty acid value changes.
Background technology
Titration technique is the classical way that general grain chemical analysis chamber, quality supervision and test department generally use.Great majority are still used manually-operated at present, and definite terminal point detects by an unaided eye.Because the singularity of grain system and operator's individuality make terminal point determining inaccurate to the sensitive difference of color, the measurement result comparability is poor.Though have the autotitrator (as Shanghai thunder magnetic, U.S. COLE-PARMER, Switzerland Wan Tong etc.) of multiple model at present both at home and abroad, but their majorities all be with the variation of titration system current potential or electricity lead, the basis that is changed to of conductivity measures, because grain is measured the singularity of system, makes these instruments can not be well suited for the mensuration of grain fatty acid value.Even have suitablely, but price is very expensive again, is difficult in the grain industry and generally uses.In existing these autotitrators, its photoelectric sensor all is to immerse in the titration system in addition, and not only cost of manufacture height, and easy-to-leak liquid forms short circuit, and it uses back inconvenience to clean simultaneously.Therefore press for a kind of automatic analyzer of specific determination grain fatty acid value in the grain industry.
Summary of the invention
The purpose of this utility model is to overcome present grain fatty acid value and measures the difficult judgement of terminal point, the problem of measurement result comparability difference, and a kind of features simple structure is provided, terminal point determining is accurate, easy to operate, cost is lower, the grain fatty acid value that can generally promote the use of in the grain industry is measured instrumentation.
The purpose of this utility model reaches by following technical measures: this grain fatty acid value analyzer is to be made of full-antomatic buret, liquid storage bottle, solenoid valve, measuring cup, measurement darkroom, light emitting diode, photodiode, traditional electromagnetic stirring system and common PC microprocessing systems.Wherein light emitting diode is arranged on one side sidewall of measuring the darkroom, on the relative another side sidewall in measurement darkroom, photodiode is set simultaneously and forms the straight penetrate type optical sensor; Photodiode is connected with the input end of PC microprocessing systems in addition; Solenoid valve is arranged on the titration conduit that connects between full-antomatic buret and the measuring cup.And solenoid valve also is connected with an output terminal of PC microprocessing systems.
Measuring cup in the utility model is to be made by simple glass or the transparent even material of quartz glass.
The utility model has following advantage compared to existing technology: this analyzer is simple in structure, easy to operate, cost is lower; it has fundamentally overcome the subjectivity that detects by an unaided eye; the accuracy of mensuration and the comparability of measurement result have been improved greatly; can provide reliable foundation for accurately estimating grain quality; guarantee " determining the price ", protect peasant household effectively, receive grain unit, use the tripartite interests of grain unit according to matter.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structural representation of the straight penetrate type optical sensor of light emitting diode and photodiode composition.
Embodiment
The utility model is described in further detail below in conjunction with embodiment: this grain fatty acid value analyzer by full-antomatic buret (2), liquid storage bottle (1), solenoid valve (3), measuring cup (6), measure darkroom (9), light emitting diode (10), photodiode (7), traditional electromagnetic stirring system (8) and common PC microprocessing systems (5) formation.Wherein solenoid valve (3) is arranged on the titration conduit between the measuring cup (6) that connects full-antomatic buret (2) and make by transparent simple glass.Measuring cup (6) is to be placed on to measure in the darkroom (9), and can be light tight with one on measure darkroom (9), and capping has the lid (4) that can wear the aperture of titration conduit measuring cup (6) is covered.In addition the micromotor that has magnetic head in traditional electromagnetic stirring system (8) is placed on measure darkroom (9) below, and the stirrer in traditional electromagnetic stirring system (8) is put into measuring cup (6).Light emitting diode (10) and photodiode (7) are composed of the straight penetrate type optical sensor, wherein light emitting diode (10) is arranged on one side sidewall of measuring darkroom (9), and photodiode (7) is arranged on the relative another side sidewall in measurement darkroom (9).Photodiode (7) is connected with the input end of common PC microprocessing systems (5) simultaneously.And an output terminal of common PC microprocessing systems (5) is connected with solenoid valve (3).
During the work of this analyzer, at first by extruding or air pressure mode with the standard solution KOH-ethanol hydraulic pressure in the container to buret, and auto zero; Then the grain extract is poured in the measuring cup after with dissolution with solvents, measuring cup is put into measured the darkroom then, and cover lid.Start stirring system afterwards, open the measurement button and begin to splash in the measuring cup by vs.Along with the adding of vs, the measurement system color in the measuring cup can change gradually, and simultaneously along with the system of measurement change in color, the light that light emitting diode sends also can change by the luminous flux of measuring system.So the electric current that photodiode produces also can change thereupon.When reaching titration end-point, because the color of the system of measurement is undergone mutation, also can undergo mutation by the luminous flux of measuring system, the electric current of photodiode generation also can suddenly change thereupon.So the PC microprocessing systems is judged titration end-point automatically with this mutation current signal Processing and by contrast.The PC microprocessing systems also sends shutdown signal to solenoid valve simultaneously, the adding of control vs, thus realize the purpose of judgement terminal point automatically.
Claims (2)
- One kind be used for that the titrimetric grain fatty acid value of grain fatty acid value analyzer comprises full-antomatic buret (2), liquid storage bottle (1), solenoid valve (3), measuring cup (6), measures darkroom (9), light emitting diode (10), photodiode (7), traditional electromagnetic stirring system (8) and common PC microprocessing systems (5), it is characterized in that light emitting diode (10) is arranged on one side sidewall of measuring darkroom (9), on the relative another side sidewall in measurement darkroom (9), photodiode (7) is set simultaneously and forms the straight penetrate type optical sensor; Photodiode (7) is connected with the input end of PC microprocessing systems (5) in addition; Solenoid valve (3) is arranged on the titration conduit that connects between full-antomatic buret (2) and the measuring cup (6), and solenoid valve (3) also is connected with an output terminal of PC microprocessing systems (5).
- 2. grain fatty acid value analyzer according to claim 1 is characterized in that measuring cup (6) is to be made by simple glass or the transparent even material of quartz glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034691 CN2705791Y (en) | 2004-05-10 | 2004-05-10 | Grain fatty acid value detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034691 CN2705791Y (en) | 2004-05-10 | 2004-05-10 | Grain fatty acid value detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2705791Y true CN2705791Y (en) | 2005-06-22 |
Family
ID=34850220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420034691 Expired - Fee Related CN2705791Y (en) | 2004-05-10 | 2004-05-10 | Grain fatty acid value detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2705791Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103089A (en) * | 2011-02-28 | 2011-06-22 | 南京财经大学 | Titration end point determination device for determining fatty acid value of grain |
| CN103323454A (en) * | 2012-03-22 | 2013-09-25 | 万研仪器科技（上海）有限公司 | Color indicator automatic titration analyzer and application method thereof |
| CN105242003A (en) * | 2015-11-13 | 2016-01-13 | 国网山东省电力公司电力科学研究院 | Oil acid detection system and method thereof |
| CN107782691A (en) * | 2017-09-23 | 2018-03-09 | 南京律智诚专利技术开发有限公司 | A kind of reactor of automatic decision reaction end |
| CN109856194A (en) * | 2019-03-15 | 2019-06-07 | 武汉轻工大学 | A kind of method of determining high quality hsien rice latter stage of ripening |
| CN110044897A (en) * | 2019-05-21 | 2019-07-23 | 四川晟实科技有限公司 | A kind of color identification module, titration end-point judgement system and its working method for volumetric method titration |
-
2004
- 2004-05-10 CN CN 200420034691 patent/CN2705791Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103089A (en) * | 2011-02-28 | 2011-06-22 | 南京财经大学 | Titration end point determination device for determining fatty acid value of grain |
| CN102103089B (en) * | 2011-02-28 | 2013-06-12 | 南京财经大学 | Titration end point determination device for determining fatty acid value of grain |
| CN103323454A (en) * | 2012-03-22 | 2013-09-25 | 万研仪器科技（上海）有限公司 | Color indicator automatic titration analyzer and application method thereof |
| CN105242003A (en) * | 2015-11-13 | 2016-01-13 | 国网山东省电力公司电力科学研究院 | Oil acid detection system and method thereof |
| CN105242003B (en) * | 2015-11-13 | 2017-05-17 | 国网山东省电力公司电力科学研究院 | Oil acid value detection system and method thereof |
| CN107782691A (en) * | 2017-09-23 | 2018-03-09 | 南京律智诚专利技术开发有限公司 | A kind of reactor of automatic decision reaction end |
| CN109856194A (en) * | 2019-03-15 | 2019-06-07 | 武汉轻工大学 | A kind of method of determining high quality hsien rice latter stage of ripening |
| CN110044897A (en) * | 2019-05-21 | 2019-07-23 | 四川晟实科技有限公司 | A kind of color identification module, titration end-point judgement system and its working method for volumetric method titration |
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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: 20050622 Termination date: 20120510 |