CH378074A - Kapazitive Prüfzelle - Google Patents
Kapazitive PrüfzelleInfo
- Publication number
- CH378074A CH378074A CH200562A CH200562A CH378074A CH 378074 A CH378074 A CH 378074A CH 200562 A CH200562 A CH 200562A CH 200562 A CH200562 A CH 200562A CH 378074 A CH378074 A CH 378074A
- Authority
- CH
- Switzerland
- Prior art keywords
- test cell
- capacitive test
- capacitive
- cell
- test
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/08—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means
-
- 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
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Electrochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US691269A US3012193A (en) | 1957-10-21 | 1957-10-21 | Apparatus and method for measuring capacitivity of a material |
Publications (1)
Publication Number | Publication Date |
---|---|
CH378074A true CH378074A (de) | 1964-05-31 |
Family
ID=24775840
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH5950958A CH365562A (de) | 1957-10-21 | 1958-05-14 | Gerät zur Bestimmung einer Eigenschaft eines Prüfgegenstandes durch Messung seiner Wirkung auf die Kapazität eines Kondensators |
CH200562A CH378074A (de) | 1957-10-21 | 1958-05-14 | Kapazitive Prüfzelle |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH5950958A CH365562A (de) | 1957-10-21 | 1958-05-14 | Gerät zur Bestimmung einer Eigenschaft eines Prüfgegenstandes durch Messung seiner Wirkung auf die Kapazität eines Kondensators |
Country Status (5)
Country | Link |
---|---|
US (1) | US3012193A (de) |
BE (1) | BE567800A (de) |
CH (2) | CH365562A (de) |
FR (1) | FR1206150A (de) |
GB (2) | GB882984A (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS412966B1 (de) * | 1938-03-01 | 1966-02-23 | ||
US3182255A (en) * | 1960-02-11 | 1965-05-04 | Hopkins Mfg Corp | Instrument for capacitively testing the condition of lubricating oil |
US3215900A (en) * | 1961-08-25 | 1965-11-02 | Fisher Governor Co | Fluid monitoring system |
US3286172A (en) * | 1962-12-31 | 1966-11-15 | James B Romans | Apparatus for determining the dielectric constant of liquids having a diskshaped electrode lying above the surface of its supporting member |
US3488758A (en) * | 1966-09-14 | 1970-01-06 | Kingsbury Technology Inc | Apparatus for measuring a property of a material while processing it between movable members containing electrodes coupled to an oscillatory circuit |
US3584579A (en) * | 1968-12-03 | 1971-06-15 | Harris Intertype Corp | Sensing probe and control for press inker embodying same |
US3739266A (en) * | 1970-11-18 | 1973-06-12 | Hardwicke Etter Co | System for sensing variations in the dielectric constant of a flow of material |
DE2158320B2 (de) * | 1971-11-24 | 1980-04-10 | Ferdy Dr. Grenoble Mayer (Frankreich) | Vorrichtung zur berührungsfreien relativen Abstandsmessung |
AT377361B (de) * | 1972-12-21 | 1985-03-11 | Oesterr Forsch Seibersdorf | Vorrichtung zur beruehrungslosen feststellung von fluessigen beschichtungen |
JPS5233558A (en) * | 1975-09-10 | 1977-03-14 | Hiromi Ogasawara | Detector for minute variations |
FR2386811A1 (fr) * | 1977-04-06 | 1978-11-03 | Elf Aquitaine | Detecteur de niveau de separation entre deux liquides |
US4287470A (en) * | 1979-02-12 | 1981-09-01 | Mem Muszaki Intezet | Digital humidimeter |
US4433286A (en) * | 1979-04-09 | 1984-02-21 | Georgetown University | Identification of materials using their complex dielectric response |
FI70753C (fi) * | 1984-05-31 | 1987-01-07 | Vaisala Oy | Foerfarande foer maetning av kapacitanser, speciellt smao kapacitanser. |
US5808198A (en) * | 1997-05-19 | 1998-09-15 | The Charles Stark Draper Laboratory, Inc. | RF balanced capacitive vibration sensor system |
US6144303A (en) * | 1999-02-01 | 2000-11-07 | Exi Wireless Systems, Inc. | Tag and system for patient safety monitoring |
US6496019B1 (en) * | 2000-08-18 | 2002-12-17 | Setra Systems, Inc. | Temperature compensated pressure sensor network |
US20040194541A1 (en) * | 2002-06-10 | 2004-10-07 | The Procter & Gamble Company | High-Q LC circuit moisture sensor |
IT1393473B1 (it) * | 2009-03-10 | 2012-04-20 | Microtec Srl | Metodo di taratura per apparecchiature per la determinazione del grado di umidità di prodotti sulla base di misure capacitive, e dispositivo per la simulazione delle proprietà dielettriche di prodotti, quali legname, da utilizzare in tale metodo. |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1686365A (en) * | 1921-03-21 | 1928-10-02 | Arman E Becker | Testing apparatus and method of using same |
US1855569A (en) * | 1926-07-09 | 1932-04-26 | Chireix Henri | High speed telegraph transmitter |
US2021760A (en) * | 1932-01-13 | 1935-11-19 | Gen Electric | Moisture indicator |
GB396098A (en) * | 1932-01-29 | 1933-07-31 | Charles Herbert William Long | Apparatus for determining the moisture content of flour, corn, beet pulp, tobacco and other moisture containing substances |
US2043241A (en) * | 1932-12-09 | 1936-06-09 | Benjamin F Eyer | Apparatus for determining the moisture content of a material |
US1999319A (en) * | 1933-02-03 | 1935-04-30 | Dowling John Joseph | Means for filling receptacles or the like with plastic, granular, or pulverulent materials |
US2222221A (en) * | 1937-10-14 | 1940-11-19 | Robert K Burford | Method and apparatus for testing steel strip thickness |
US2266114A (en) * | 1938-11-02 | 1941-12-16 | Rosenberg Bros & Co | Moisture determining apparatus |
US2307316A (en) * | 1941-02-13 | 1943-01-05 | Rca Corp | Frequency meter |
US2403557A (en) * | 1941-02-27 | 1946-07-09 | Rca Corp | Frequency determining device |
DE899618C (de) * | 1941-10-17 | 1953-12-14 | Hans Lange Dr Ing | Anordnung zur selbsttaetigen Regelung der Wasserzugabe entsprechend der Eigenfeuchtigkeit der Zuschlagstoffe bei der Betonaufbereitung |
US2324077A (en) * | 1941-12-27 | 1943-07-13 | Rca Corp | Measuring circuit |
US2403615A (en) * | 1942-11-30 | 1946-07-09 | Rca Corp | Frequency responsive circuit |
US2472784A (en) * | 1943-09-08 | 1949-06-14 | Walter C Barnes | Method and apparatus for detecting flaws |
US2511233A (en) * | 1945-12-08 | 1950-06-13 | Clarence A Anderson | Detection device |
US2516768A (en) * | 1946-04-29 | 1950-07-25 | Zellweger Uster Ag | Apparatus for gauging textiles, particularly yarns and sliver |
US2593766A (en) * | 1947-04-26 | 1952-04-22 | Patterson Co C | Apparatus for testing materials |
GB687472A (en) * | 1947-09-09 | 1953-02-18 | Lyons & Co Ltd J | Improvements in and relating to instruments for indicating or measuring the moisture content of materials |
US2571439A (en) * | 1950-03-10 | 1951-10-16 | Floyd M Glass | System for determining tube characteristics |
US2617855A (en) * | 1950-11-10 | 1952-11-11 | Bell Telephone Labor Inc | Automatic measurement of transmission characteristics |
US2774940A (en) * | 1951-04-17 | 1956-12-18 | Inst Textile Tech | Automatic evaluator |
US2604513A (en) * | 1951-07-25 | 1952-07-22 | Brush Dev Co | Capacitive measuring head |
US2750500A (en) * | 1951-09-06 | 1956-06-12 | Aiken William Ross | Linear pulse integrator |
US2752566A (en) * | 1952-01-05 | 1956-06-26 | Richard W Wells | Methods and means for indicating contamination of lubricating oil |
FR1063150A (fr) * | 1952-06-09 | 1954-04-29 | Conte | Dispositif conducteur à résistance électrique variable |
US2737469A (en) * | 1953-04-13 | 1956-03-06 | Exxon Research Engineering Co | Control of solvent extraction |
US2722657A (en) * | 1953-07-03 | 1955-11-01 | Perforating Guns Atlas Corp | Means for detecting changes in dielectric constant of thin strata of lithological formations traversed by a borehole |
US2768629A (en) * | 1953-09-24 | 1956-10-30 | American Mach & Foundry | Moisture measuring method and apparatus |
-
0
- BE BE567800D patent/BE567800A/xx unknown
-
1957
- 1957-10-21 US US691269A patent/US3012193A/en not_active Expired - Lifetime
-
1958
- 1958-04-14 GB GB11739/58A patent/GB882984A/en not_active Expired
- 1958-04-14 GB GB8376/60A patent/GB882985A/en not_active Expired
- 1958-05-12 FR FR1206150D patent/FR1206150A/fr not_active Expired
- 1958-05-14 CH CH5950958A patent/CH365562A/de unknown
- 1958-05-14 CH CH200562A patent/CH378074A/de unknown
Also Published As
Publication number | Publication date |
---|---|
CH365562A (de) | 1962-11-15 |
GB882985A (en) | 1961-11-22 |
FR1206150A (fr) | 1960-02-08 |
BE567800A (de) | |
US3012193A (en) | 1961-12-05 |
GB882984A (en) | 1961-11-22 |
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