FR2275767A1 - Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco - Google Patents
Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobaccoInfo
- Publication number
- FR2275767A1 FR2275767A1 FR7421505A FR7421505A FR2275767A1 FR 2275767 A1 FR2275767 A1 FR 2275767A1 FR 7421505 A FR7421505 A FR 7421505A FR 7421505 A FR7421505 A FR 7421505A FR 2275767 A1 FR2275767 A1 FR 2275767A1
- Authority
- FR
- France
- Prior art keywords
- tobacco
- air
- weight loss
- humidity measurement
- auto transformer
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B9/00—Control of the moisture content of tobacco products, e.g. cigars, cigarettes, pipe tobacco
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
- G01N5/045—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content
Abstract
Humidity content of substances such as tobacco is measured by determining the loss of weight after hot air is passed through the substance. A particular air temperature is required and differences are accounted for by a calibration chart. Repetitive cycles are avoided by using an autotransformer to regulate heater power. The substance under test is placed in a drying container through which heated air at a particular temperature is passed. The air is obtained by blowing air through a tube containing a heating element (31). This heater is connected to the output terminals (34) of an autotransformer (32) through a control knob (33) with cursor (35) thus enabling the ideal temperature to be rapidly obtained. The transformer is connected to a power source through fuses (37).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7421505A FR2275767A1 (en) | 1974-06-20 | 1974-06-20 | Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7421505A FR2275767A1 (en) | 1974-06-20 | 1974-06-20 | Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2275767A1 true FR2275767A1 (en) | 1976-01-16 |
FR2275767B1 FR2275767B1 (en) | 1976-10-22 |
Family
ID=9140315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7421505A Granted FR2275767A1 (en) | 1974-06-20 | 1974-06-20 | Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2275767A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2587801A1 (en) * | 1985-09-20 | 1987-03-27 | Tabacs & Allumettes Ind | METHOD AND APPARATUS FOR CONTROLLED DESSICATION OF A MASS OF A TOBACCO SAMPLE |
CN106617245A (en) * | 2017-01-20 | 2017-05-10 | 福建中烟工业有限责任公司 | Method, device and system for controlling moisture content of expanded tobacco at in-site pneumatic separation outlet |
CN107095340A (en) * | 2017-05-26 | 2017-08-29 | 上海烟草集团有限责任公司 | A kind of method for improving cigarette Moisture stability |
-
1974
- 1974-06-20 FR FR7421505A patent/FR2275767A1/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2587801A1 (en) * | 1985-09-20 | 1987-03-27 | Tabacs & Allumettes Ind | METHOD AND APPARATUS FOR CONTROLLED DESSICATION OF A MASS OF A TOBACCO SAMPLE |
EP0220972A1 (en) * | 1985-09-20 | 1987-05-06 | Societe Nationale D'exploitation Industrielle Des Tabacs Et Allumettes | Method and apparatus for controlling the drying process of a tobacco sample having a certain weight |
CN106617245A (en) * | 2017-01-20 | 2017-05-10 | 福建中烟工业有限责任公司 | Method, device and system for controlling moisture content of expanded tobacco at in-site pneumatic separation outlet |
CN106617245B (en) * | 2017-01-20 | 2018-06-05 | 福建中烟工业有限责任公司 | Selection by winnowing exports method for controlling water content, device and system to expanded cut tobacco on the spot |
CN107095340A (en) * | 2017-05-26 | 2017-08-29 | 上海烟草集团有限责任公司 | A kind of method for improving cigarette Moisture stability |
Also Published As
Publication number | Publication date |
---|---|
FR2275767B1 (en) | 1976-10-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |