GB1132763A - Measuring moisture content and other properties of solids and liquids - Google Patents
Measuring moisture content and other properties of solids and liquidsInfo
- Publication number
- GB1132763A GB1132763A GB942566A GB942566A GB1132763A GB 1132763 A GB1132763 A GB 1132763A GB 942566 A GB942566 A GB 942566A GB 942566 A GB942566 A GB 942566A GB 1132763 A GB1132763 A GB 1132763A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solids
- liquids
- properties
- moisture content
- measuring moisture
- 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
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth 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
1,132,763. Measuring moisture electrically. ROWNTREE & CO. Ltd. March 3, 1967 [March 3, 1966], No.9425/66. Heading G1N. The moisture measuring system of Application 9426/66 is modified for use when there is more than one secondary variable, by the simultaneous application of at least two test frequencies. Output signals are derived from two sets of phase-sensitive detectors, (working at the two applied frequencies), and fed to a suitable "computing" network as before. Preferably the output of one of the detectors is fed to a servosystem to adjust the bridge network and "null-balance" the major phase component. The output to the subsequent computing system is then taken from the feedback potentiometer in the servosystem.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB942566A GB1132763A (en) | 1966-03-03 | 1966-03-03 | Measuring moisture content and other properties of solids and liquids |
DE19671598980 DE1598980A1 (en) | 1966-03-03 | 1967-03-03 | Measuring device for measuring the degree of moisture and other properties of liquid and solid substances |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB942566A GB1132763A (en) | 1966-03-03 | 1966-03-03 | Measuring moisture content and other properties of solids and liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1132763A true GB1132763A (en) | 1968-11-06 |
Family
ID=9871728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB942566A Expired GB1132763A (en) | 1966-03-03 | 1966-03-03 | Measuring moisture content and other properties of solids and liquids |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1598980A1 (en) |
GB (1) | GB1132763A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2288022A (en) * | 1994-03-23 | 1995-10-04 | Central Research Lab Ltd | Method of sensing the condition of a piece of food |
WO2006069721A2 (en) | 2004-12-22 | 2006-07-06 | Hauni Maschinenbau Ag | Measuring device and method for determining a dielectric property, particularly humidity and/or density, of a product |
US7659730B2 (en) | 2004-12-22 | 2010-02-09 | Hauni Maschinenbau Ag | Measuring apparatus and method for recognizing foreign bodies in a product, particularly tobacco, cotton or another fibrous product |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012106939A1 (en) * | 2012-07-30 | 2014-01-30 | Innovative Sensor Technology Ist Ag | Device for capacitive determination of moisture content of surrounding medium, has electronic unit which is provided to charge sensor element with excitation signal with frequency and to receive measuring signal |
-
1966
- 1966-03-03 GB GB942566A patent/GB1132763A/en not_active Expired
-
1967
- 1967-03-03 DE DE19671598980 patent/DE1598980A1/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2288022A (en) * | 1994-03-23 | 1995-10-04 | Central Research Lab Ltd | Method of sensing the condition of a piece of food |
WO2006069721A2 (en) | 2004-12-22 | 2006-07-06 | Hauni Maschinenbau Ag | Measuring device and method for determining a dielectric property, particularly humidity and/or density, of a product |
WO2006069721A3 (en) * | 2004-12-22 | 2006-10-19 | Hauni Maschinenbau Ag | Measuring device and method for determining a dielectric property, particularly humidity and/or density, of a product |
US7659730B2 (en) | 2004-12-22 | 2010-02-09 | Hauni Maschinenbau Ag | Measuring apparatus and method for recognizing foreign bodies in a product, particularly tobacco, cotton or another fibrous product |
US7679377B2 (en) | 2004-12-22 | 2010-03-16 | Hauni Maschinenbau Ag | Measuring apparatus and method for determining a dielectric property, in particular moisture and/or density, in a product |
Also Published As
Publication number | Publication date |
---|---|
DE1598980A1 (en) | 1971-04-01 |
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