DE835215C - Method and device for measuring the fat content of milk or the like. - Google Patents
Method and device for measuring the fat content of milk or the like.Info
- Publication number
- DE835215C DE835215C DEK2108A DEK0002108A DE835215C DE 835215 C DE835215 C DE 835215C DE K2108 A DEK2108 A DE K2108A DE K0002108 A DEK0002108 A DE K0002108A DE 835215 C DE835215 C DE 835215C
- Authority
- DE
- Germany
- Prior art keywords
- milk
- line
- skimmed milk
- comparison
- measurement
- 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
Links
Classifications
-
- 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
- G01N33/04—Dairy products
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Dairy Products (AREA)
Description
Es ist bereits bekannt, den Fettgehalt der Milch, od. dgl. in Abhängigkeit von der Lichtdurchlässigkeit mittels einer Fotozelle zu messen. It is already known to determine the fat content of milk or the like as a function of to measure the light transmission by means of a photocell.
Die Erfindung besteht darin, daß die Messung als Vergieichsmessung zu einer Standardflüssigkeit oder einem sonstigen Vergleichsobjekt, vorzugsweise zu der Magermilch, aus welcher die zu messende Flüssigkeit gewonnen wird, ausgeführt wird. Zweckmäßig findet die NTergleichsmessung kontinuierlich statt. The invention consists in that the measurement as a comparison measurement to a standard liquid or some other comparison object, preferably to the skimmed milk from which the liquid to be measured is obtained will. The N comparison measurement expediently takes place continuously.
Eine Einrichtung zur Durchfu hrung des Verfahrens besteht darin, daß ein Gefäß oder eine Leitung für Standardflüssigkeit, z.B. Magermilch, und ein Gefäß oder eine Leitung für die zu messende Milch je zwischen einer Lichtquelle und einer Fotozelle angeordnet sind und die Fotozellen in Vergleichschaltung an ein Meß- oder Registrierinstrument gelegt sind. A facility for carrying out the procedure consists in: that a vessel or line for standard liquid, e.g. skimmed milk, and a Vessel or line for the milk to be measured, each between a light source and a photocell are arranged and the photocells in comparison circuit a measuring or recording instrument are placed.
Beispielsweise kann die Anordnung so getroffen sein. daß eine Rahmleitung über einen Regler au eine Magermilchleitung angeschlossen und die Alittel zur Vergleichsmessung einerseits in den nur Magermilch führenden Teil, andererseits in den das Gemisch aus Milch und Rahm führenden Teil der letzteren Leitung eingebaut sind. For example, the arrangement can be made in this way. that a cream line Connected to a skimmed milk line via a controller and the means for comparative measurement on the one hand in the part only leading to skimmed milk, on the other hand in the mixture part of the latter line leading from milk and cream are installed.
Der Vorteil des erfindungsgemäßen Verfahrens liegt in der größeren Zuverlässigkeit der Meßergebnisse. The advantage of the method according to the invention is that it is greater Reliability of the measurement results.
I)ie Fig. I und 2 zeigen zwei Ausführungsbeispiele. I) ie FIGS. I and 2 show two exemplary embodiments.
Gemäß Fig. 1 sind zwei Gefäße 3 und 6 vorgesehen, eines für Magermilch, aus welcher die zu messende Milch durch Beigabe von Rahm gewonnen wird, das andere Gefäß für die zu messende Milch. Jedes der heiden Gefäße befindet sich zwischen einer gemeinsamen Lichtquelle I und, unter Zwischenschaltung je einer Sammellinse 2, einer Fotozelle 4. Die beiden Fotozellen 4 sind in Vergleichsschaltung mit dem Anzeigegerät 5 zusammengeschaltet. Es werden also gleichzeitig die Magermilch und die zu messende Milch durchleuchtet. I)as Instrument zeigt nur die Beleuchtungsdifferenz. Der Vorteil liegt darin, daß die zu messende Milch imther mit der Magermilch verglichen wird, aus welcher sie hergestellt wird bzw. welche aus ihr gewonnen wird, so daß die Differenz der Lichtdurchlässigkeit nur aus der Differenz des Fettgehaltes entstehen kann lSei der Ausführungsform der Fig. 2 ist 9 eine l)urcl1laufleitullg für Rahm, der aus der Zentrifuge kommt.. 10 ist eine Durchlaufleitung für die Magermilch, die aus der Zentrifuge kommt, Ii ist ein Regelorgan, mit dem es möglich ist, aus der Leitung 9 Rahm in die Leitung 10 fließen zu lassen. According to Fig. 1, two vessels 3 and 6 are provided, one for skimmed milk, from which the milk to be measured is obtained by adding cream, the other Container for the milk to be measured. Each of the two vessels is between a common light source I and, with the interposition of a converging lens 2, a photocell 4. The two photocells 4 are in comparison with the Display device 5 interconnected. So it will be the skimmed milk and at the same time the milk to be measured is illuminated. I) the instrument only shows the lighting difference. The advantage is that the milk to be measured is compared with the skimmed milk from which it is made or which is obtained from it, so that the difference in light transmission can only arise from the difference in fat content In the embodiment of FIG. 2, 9 is a l) urcl1laufleitullg for cream, which comes out of the centrifuge .. 10 is a flow line for the skimmed milk, which comes out of the centrifuge, ii is a regulating organ with which it is possible out the line 9 to allow cream to flow into the line 10.
In dem Teil der Leitung 10, in avelchem nur Slagermilch fließt. befindet sich eine Sammellinse 2 mit vorgeschalteter Lichtquelle I und gegenüberhegend die Fotozelle 4. Dieselbe Anordnung ist in dem Teil der Leitung 10 getroffen, in welchem das Gemisch aus Magermilch und Rahm strömt. Die beiden Fotozellen 4 liegen in Brückenschaltung zu dem Meßinstrument j.In the part of the line 10, in avelchem only slag milk flows. is located a converging lens 2 with an upstream light source I and the opposite Photocell 4. The same arrangement is made in the part of the line 10 in which the mixture of skimmed milk and cream flows. The two photocells 4 are in a bridge circuit to the measuring instrument j.
Das Verfahren und seine Einrichtung könnett sinngemäß zur Fettgehaltbestimmung von Rahm, sogar von Butter verwendet werden. The method and its equipment can be used analogously to determine the fat content of cream, even butter.
An Stelle einer Standardflüsdsigkeit kann ein anderes Vergleichsobjekt, z.B. eine mattierte Glasscheibe, benutzt werden. Instead of a standard liquid, another comparison object, e.g. a frosted glass pane can be used.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK2108A DE835215C (en) | 1950-03-11 | 1950-03-11 | Method and device for measuring the fat content of milk or the like. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK2108A DE835215C (en) | 1950-03-11 | 1950-03-11 | Method and device for measuring the fat content of milk or the like. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE835215C true DE835215C (en) | 1952-03-27 |
Family
ID=7209237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK2108A Expired DE835215C (en) | 1950-03-11 | 1950-03-11 | Method and device for measuring the fat content of milk or the like. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE835215C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1046373B (en) * | 1952-04-01 | 1958-12-11 | Dr Georg Roeder | Method for determining the fat content of milk u. like |
| FR2320537A1 (en) * | 1975-08-04 | 1977-03-04 | Grubb Parsons Cy Ltd Sir Howar | IMPROVEMENTS TO THE ANALYSIS OF EMULSIONS AND SUSPENSIONS |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE465652C (en) * | 1928-09-21 | Curt Unger | Device for testing milk | |
| DE513491C (en) * | 1928-08-03 | 1930-11-28 | Alexander Slawinski | Method and device for determining the concentration of suspensions by measuring electrical conductivity |
| DE568476C (en) * | 1933-01-20 | N Gerber S Co M B H Dr | Electrode vessel for determining the electrical conductivity of solutions, especially milk | |
| DE586762C (en) * | 1932-06-01 | 1933-10-26 | Walter Strauss Dr | Method for measuring the fat content of milk |
-
1950
- 1950-03-11 DE DEK2108A patent/DE835215C/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE465652C (en) * | 1928-09-21 | Curt Unger | Device for testing milk | |
| DE568476C (en) * | 1933-01-20 | N Gerber S Co M B H Dr | Electrode vessel for determining the electrical conductivity of solutions, especially milk | |
| DE513491C (en) * | 1928-08-03 | 1930-11-28 | Alexander Slawinski | Method and device for determining the concentration of suspensions by measuring electrical conductivity |
| DE586762C (en) * | 1932-06-01 | 1933-10-26 | Walter Strauss Dr | Method for measuring the fat content of milk |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1046373B (en) * | 1952-04-01 | 1958-12-11 | Dr Georg Roeder | Method for determining the fat content of milk u. like |
| FR2320537A1 (en) * | 1975-08-04 | 1977-03-04 | Grubb Parsons Cy Ltd Sir Howar | IMPROVEMENTS TO THE ANALYSIS OF EMULSIONS AND SUSPENSIONS |
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