GB887556A - Improvements in or relating to moisture content determination - Google Patents
Improvements in or relating to moisture content determinationInfo
- Publication number
- GB887556A GB887556A GB6426/58A GB642658A GB887556A GB 887556 A GB887556 A GB 887556A GB 6426/58 A GB6426/58 A GB 6426/58A GB 642658 A GB642658 A GB 642658A GB 887556 A GB887556 A GB 887556A
- Authority
- GB
- United Kingdom
- Prior art keywords
- web
- paper
- moisture content
- wire
- guide
- 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
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
- G01N22/04—Investigating moisture content
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
887,556. Determination of moisture content of paper &c. BELOIT IRON WORKS. Feb. 27, 1958 [March 6, 1957], No. 6426/58. Class 96. [Also in Groups XXXVI and XL (b)] The moisture-content of a paper web is determined by measuring the amount of microwave power absorbed by passage along a surface of the web, preferably at a wavelength strongly absorbed by water and only slightly by paper, e.g. 1.35 cm. Microwaves generated at 10 are directed at 13 along a guide comprising a wire or bar 15 embedded in a solid dielectric 16. Part of the latter is cut away to allow the web to lie adjacent to the wire at 18. Power detectors 20 and 21 are coupled to the guide, and the difference of their outputs gives a measure of the power absorbed by the body. A comparative test can be made on a completely dry web, or the apparatus may be initially calibrated in this way.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US887556XA | 1957-03-06 | 1957-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB887556A true GB887556A (en) | 1962-01-17 |
Family
ID=22213257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6426/58A Expired GB887556A (en) | 1957-03-06 | 1958-02-27 | Improvements in or relating to moisture content determination |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB887556A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498112A (en) * | 1968-04-30 | 1970-03-03 | Us Navy | Microwave system for determining water content in fuel oil |
| CN114839204A (en) * | 2022-04-29 | 2022-08-02 | 江南大学 | Microwave sensor array-based wood tomography system |
-
1958
- 1958-02-27 GB GB6426/58A patent/GB887556A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498112A (en) * | 1968-04-30 | 1970-03-03 | Us Navy | Microwave system for determining water content in fuel oil |
| CN114839204A (en) * | 2022-04-29 | 2022-08-02 | 江南大学 | Microwave sensor array-based wood tomography system |
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