CN2498604Y - Instrument for measuring total content of polarized molecules in edible oil and fat by laser - Google Patents
Instrument for measuring total content of polarized molecules in edible oil and fat by laser Download PDFInfo
- Publication number
- CN2498604Y CN2498604Y CN 00226060 CN00226060U CN2498604Y CN 2498604 Y CN2498604 Y CN 2498604Y CN 00226060 CN00226060 CN 00226060 CN 00226060 U CN00226060 U CN 00226060U CN 2498604 Y CN2498604 Y CN 2498604Y
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- laser
- fat
- instrument
- total content
- photodetector
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- Expired - Fee Related
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Disclosed is a special apparatus for measuring quality changes of edible fat after times heating. The worsening level of the fat can be judged through the total content of the fat polarized molecules. No such special apparatus exists currently for the measurement; a chromatographic instrument is expensive and takes long time to complete the measurement. The apparatus comprises a laser, a filter, a glass oil cup, a photodetector and a voltmeter; wherein the laser by the laser is shot into a being-detected liquid fat sample, scattered light with the same wavelength as the laser is filtered by the filter, and then the scattered light with longer wave than the laser are obtained and the intensity of the light is measured by the photodetector and is displayed by the voltmeter in the form of voltage. The stronger the long-wave scattered light is, the higher the total content of the polarized molecules is and the worse the fat quality is.
Description
The utility model relates to a kind of edible oil and fat are used the back mass change by heating for multiple times instrumentation of measuring.
Edible oil and fat extensively are used for the cooking and food processing in large quantities, and grease after heating is used repeatedly for a long time a lot of physics and chemical change can take place, and decomposes or polymerization as fatty acid, generates novel substance, and wherein a part is a polar molecule.Generally about 3%, along with increasing heat time heating time and the heating increased frequency, this content increases gradually for Jia Re grease not, its polar molecule total content, and the foreign study personnel think that when reaching 25%～27% this grease should not re-use.The debase degree of grease in heating for multiple times is used can be judged with its polar molecule total content.The instrument of measuring polar molecule total content in the grease now is a chromatograph, and this instrument must under lab use, by professional's operation, and the instrument costliness, Measuring Time is long, and obvious this method can not be used in real time at the scene.
The purpose of this utility model provides a kind of measurement edible oil and fat of special use by the instrument of heating for multiple times use back debase degree.It is cheap, and is easy to use, can obtain measurement result in time, judges the degree that degenerates of oil quality then.
The purpose of this utility model is achieved in that and it is characterized in that: instrument mainly is made up of laser instrument, optical filter, glass oil cup, photodetector and voltage table.The laser that laser instrument sends is injected tested liquid oil sample, photodetector places the side of oil sample and laser beam, optical filter is placed between oil sample and the photodetector, filter the scattered light identical with optical filter with optical maser wavelength, allow the long scattered light of wavelength ratio laser wave enter detector, its intensity shows with voltage table with the form of voltage.The polar molecule total content is high more in the oil, and long wavelength's scattered light is strong more, thereby the quality of oil is poor more.
The measurement grease of being made by such scheme is used the instrumentation of back mass change simple in structure by heating for multiple times, and instrument is light and handy, and visual result is easy to use, and cheap, can be used for the working site easily.
Below in conjunction with drawings and Examples the utility model is further specified.Accompanying drawing is the components and parts arrangement plan of instrument, 1. camera bellows among the figure; 2. laser instrument; 3. diaphragm; 4. glass oil cup; 5. oil sample; 6. optical filter; 7. photodetector; 8. voltage table; 9. instrument stand.The laser that laser instrument (2) sends is through diaphragm (3), pass lubricating cup (4) and inject oil sample (5), laser and grease interaction of molecules produce the longer outside scattering of light of wavelength ratio optical maser wavelength, scattered light passes optical filter (6), laggardly go into photodetector (7), scattered intensity is shown by voltage table (8) with the form of voltage, above-mentioned each components and parts all place in the camera bellows (1) except that voltage table (8), do not have extraneous light during measurement and enter, camera bellows (1) all is contained on the instrument stand (9) with voltage table (8).
Claims (1)
1. instrument with polar molecule total content in the laser measurement edible oil and fat, it is characterized in that: instrument mainly is made up of laser instrument, optical filter, glass oil cup, photodetector and voltage table, photodetector places the side of oil sample and laser beam, and optical filter is placed between oil sample and the detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226060 CN2498604Y (en) | 2000-01-25 | 2000-01-25 | Instrument for measuring total content of polarized molecules in edible oil and fat by laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226060 CN2498604Y (en) | 2000-01-25 | 2000-01-25 | Instrument for measuring total content of polarized molecules in edible oil and fat by laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2498604Y true CN2498604Y (en) | 2002-07-03 |
Family
ID=33590003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00226060 Expired - Fee Related CN2498604Y (en) | 2000-01-25 | 2000-01-25 | Instrument for measuring total content of polarized molecules in edible oil and fat by laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2498604Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458410C (en) * | 2006-03-29 | 2009-02-04 | 南开大学 | Digital photoelectric grease integration color detecting system and its detecting method |
-
2000
- 2000-01-25 CN CN 00226060 patent/CN2498604Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458410C (en) * | 2006-03-29 | 2009-02-04 | 南开大学 | Digital photoelectric grease integration color detecting system and its detecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |