CN1705879A - Method and device for determining the sheen of rice - Google Patents
Method and device for determining the sheen of rice Download PDFInfo
- Publication number
- CN1705879A CN1705879A CN 200380101624 CN200380101624A CN1705879A CN 1705879 A CN1705879 A CN 1705879A CN 200380101624 CN200380101624 CN 200380101624 CN 200380101624 A CN200380101624 A CN 200380101624A CN 1705879 A CN1705879 A CN 1705879A
- Authority
- CN
- China
- Prior art keywords
- rice
- glossiness
- shear stress
- telecontrol equipment
- sheen
- 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.)
- Pending
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
- G01N33/10—Starch-containing substances, e.g. dough
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Automation & Control Theory (AREA)
- Medicinal Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Sampling And Sample Adjustment (AREA)
- Cereal-Derived Products (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to a method and a device for determining the sheen of rice, especially white rice, enabling an objective evaluation of the sheen or the smoothness of the surface of polished grains of rice. To this end, a shearing strain is applied to a quantity of rice and the temporal intervals (T3) of stick-slip effects are determined, said intervals expressing the degree of polish or sheen.
Description
Technical field
The present invention relates to be used for determining the glossiness of rice, especially polish the method for the glossiness of rice, and the device that is used for the glossiness of definite this rice.
Background technology
To produce rice be well-known by Mi Jinhang is polished.Herein, smooth surface that is obtained or surface gloss are represented the quality of finish that obtained.But because glossiness is artificial estimation, so it depends on estimator's subjective suggestion.
EP-A-296956 discloses a kind of glossiness indicator, utilizes this indicator, by providing a kind of standard of comparison with the standard surface comparison.According to DE-A-3312948, the spectrum by studying the surface that is launched light pulse on it and convert thereof into electric signal can be determined the glossiness on any surface fast.For example at EP-A-183270, JP56197959 discloses among WO96/33401 or the WO01/20308 by definite surface glosses such as the catoptrical intensity of research.This also can finish by NIR spectrometer (EP-A-240185).
Owing to white level or the color that can determine rice by optical instrument well, color analysis no longer provides more information to the smoothness and the glossiness of the grain of rice, therefore also no longer provides more information to product quality and purchase interest.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of method of glossiness of glossiness, the especially rice that is used for determining rice, it can be objectively and the glossiness of the estimation polishing grain of rice economically.This purpose realizes by the described feature of claim 1.
The "blind"effect that is very easy to the estimation grain of rice makes it possible to estimate relatively the glossiness or the smoothness of rice, and it makes the producers and consumers to estimate crudy objectively by the glossiness or the smoothness on grain of rice surface.This is by applying shear stress and determining "blind"effect in this process in a certain amount of grain of rice, especially mean value is determined.
Must determine the time interval of the "blind"effect during being subjected to shear stress.They are shown by mean deviation subsequently.
The present invention also aims to provide a kind of be used to estimate reliable, the economy of glossiness, the device of easy operating.This device is realized by the described feature of claim 6.
This device comprises the rotary table of slow rotation, and the ring groove of rice is filled in its supporting one.The result data of one electronic calculator with variation, maximal value and minimum value, interval time and the relevant glossiness of acquisition moment also is set.This device is based on an annular cut cells, and by this cut cells, the shearing force of bulk materials is measured and demonstration subsequently in measuring flume.This annular cut cells is used for determining the size of shearing force and accurately changes that simultaneously, device according to the present invention is only measured the time interval of " shearing force descends (shearing force drops) ".Then, these times for example are used as the parameter of grain of rice glossiness.
Description of drawings
Describe exemplary embodiment of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is that traditional rice is measured demonstration.
Fig. 2 is two explanatory views of apparatus of the present invention.
Embodiment
The inventive system comprises the rotary table 1 that has a toroidal container 2.The bottom of container 2 is equipped with synchronous plate 3.Fill rice 4 in the container 2.
Rotary table 1 is driven by one (synchronous) tape handler 5, and tape handler 5 is by geared dynamo 6 energy supplies with high transmission ratio, and therefore, in each measuring process, the periphery of the rotary table 1 of band container 2 is only rotated very little several millimeters.
With rotary table 1 opposite location place one hinged openable opposite plate is being arranged, its bottom is equipped with supporting member.
Can utilize spring 8, pressing plate 10 and mandrel 11 with handles that opposite plate 7 is pressed against on the surface of rice.Steady arm 12 is used for cap assemblies 19 location.
After cap assemblies 19 closures, can utilize mandrel 11 to make pressing plate 10 motions, thereby prestretched spring 8 apply desired pressure up to the surface of 10 pairs of rice of pressing plate.Markedness 14 on spring bolt 13, represent the prestretched degree that pre-sets during the flush of mark 14 and pressing plate 10, and therefore each measurement can be provided with equal pressure.Can observe mark 14 by window 15.
Geared dynamo 6 pivots around transmission shaft in housing 16, and is bearing on the dynamometer 18 through lever arm 17.Bolt 20 is as the supporting member of container 2.
Also can between described lid and opposite worktable 7, the wind energy element be installed and utilize operation valve that one allowable pressure is set, thereby utilize pressurized air to produce prestretched.Total energy obtains constant prestretched under determined air pressure.
In measuring process, at first, will be full of rice in the container 2 and place it on the rotary table 1.Then, cover 19 closures, apply allowable pressure on the surface of rice by mandrel 11.After starter receiver driving motor 6, rotary table 1 rotates lentamente, and transmission shaft is applied counter torque.Measure the acting force that converter obtains geared dynamo 6, and estimate action time.
If produce the gap (stick-slip interval) of creeping over time, the cycle that then records vibration processes, and by control system demonstration mean value.
After measurement was finished, motor cut out.Prestretched must be removed once more, perhaps in wind-force changes example, and the reducing speed and must increase progressively of pressure.Can also and/or use pressing plate 10 places of force transducer or torque sensor to obtain the moment of reaction at opposite worktable 7.
Electronic calculator is along with time and interval process are determined minimum value and maximal value.
Rotary table 1 occurs the inner "blind"effect of rice layer with low speed rotation in the action time of a few minutes behind the T2, cause the variation of moment.Whole measurement cycle time T 1 is adjustable.
The increase of speed makes it possible to shorten action time, thereby shortens measuring process.
Behind action time T2, the situation that does not at every turn reach predetermined minimum moment is all write down, even comprises the part of measured maximum moment.After the measuring period that presets, the number of times that the measurement duration is determined separately produces the averaging time of "blind"effect, and it is shown.This needs counter and effect of pre-seting and measuring period.
We find that this effect has the interval of variation according to the degree of polishing.Rice is bright more and smooth, and the time of moment variations is short more.For the rice of height polishing degree and glossiness, several seconds only need be measured in single interlude gap, the time that the rice of polishing degree difference then will be grown relatively.
Determine that measuring intervals of TIME T3 is that "blind"effect produces a time gap width, the average glossiness of its expression grain of rice.In this example, T3 is more little, and rice is bright more and smooth.
The invention is not restricted to described embodiment.
Description of reference numerals:
1 rotary table
2 containers
3 synchronous plates
4 meters
5 tape handlers
6 geared dynamos
7 opposite plate
8 springs
9 hinges
10 pressing plates
11 mandrels
12 steady arms
13 spring bolts
14 marks
15 windows
16 housings
17 lever arms
18 dynamometers
19 lids
20 bolts
T1 measures cycling time
T2 action time
T3 at interval
Claims (8)
1. determine the method for glossiness of glossiness, the especially rice of rice, step is as follows:
A) make a certain amount of grain of rice be subjected to shear stress in default action time (T2);
B) the record "blind"effect and their time interval (T3);
C) determine predetermined gloss value at interval according to these.
2. method according to claim 1 is characterized in that, the time interval of being write down (T3) value of being averaged.
3. method according to claim 1 and 2 is characterized in that described shear stress applies by spinning movement.
4. method according to claim 3 is characterized in that, notes moment variations and/or electric current and changes.
5. method according to claim 1 is characterized in that, described shear stress is produced with the vertical reacting force that applies thereon by linear movement.
6. determine the device of the glossiness of rice, comprising: telecontrol equipment, settle one the space or the container (2) of meter (4) are housed on it, wherein, described telecontrol equipment comprises the sensor device that links to each other with electronic calculator.
7. device according to claim 6 is characterized in that, described telecontrol equipment is rotary table (1), and described container (2) is annular.
8. according to claim 6 or 7 described devices, it is characterized in that described sensor device is suitable for record power and/or moment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10248566.6 | 2002-10-17 | ||
| DE2002148566 DE10248566A1 (en) | 2002-10-17 | 2002-10-17 | Method and device for determining the gloss of rice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1705879A true CN1705879A (en) | 2005-12-07 |
Family
ID=32049391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200380101624 Pending CN1705879A (en) | 2002-10-17 | 2003-10-14 | Method and device for determining the sheen of rice |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1552290A2 (en) |
| JP (1) | JP2006504081A (en) |
| CN (1) | CN1705879A (en) |
| AU (1) | AU2003266905A1 (en) |
| DE (1) | DE10248566A1 (en) |
| WO (1) | WO2004036208A2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6311841A (en) * | 1986-03-20 | 1988-01-19 | Satake Eng Co Ltd | Device for evaluation of rice quality |
| JPH05133883A (en) * | 1991-11-12 | 1993-05-28 | Shizuoka Seiki Co Ltd | Determining method of quality of unhulled rice |
| IL113428A0 (en) * | 1995-04-20 | 1995-07-31 | Yissum Res Dev Co | Glossmeter |
| JPH10160676A (en) * | 1996-11-27 | 1998-06-19 | Matsushita Electric Works Ltd | Rice grain inspection device |
-
2002
- 2002-10-17 DE DE2002148566 patent/DE10248566A1/en not_active Withdrawn
-
2003
- 2003-10-14 EP EP03747787A patent/EP1552290A2/en not_active Withdrawn
- 2003-10-14 CN CN 200380101624 patent/CN1705879A/en active Pending
- 2003-10-14 WO PCT/CH2003/000669 patent/WO2004036208A2/en active Application Filing
- 2003-10-14 AU AU2003266905A patent/AU2003266905A1/en not_active Abandoned
- 2003-10-14 JP JP2004543891A patent/JP2006504081A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004036208A2 (en) | 2004-04-29 |
| WO2004036208A3 (en) | 2004-11-25 |
| DE10248566A1 (en) | 2004-04-29 |
| JP2006504081A (en) | 2006-02-02 |
| EP1552290A2 (en) | 2005-07-13 |
| AU2003266905A1 (en) | 2004-05-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |