CA965148A - Condition measuring system using components of admittance of an electrical circuit - Google Patents
Condition measuring system using components of admittance of an electrical circuitInfo
- Publication number
- CA965148A CA965148A CA147,995A CA147995A CA965148A CA 965148 A CA965148 A CA 965148A CA 147995 A CA147995 A CA 147995A CA 965148 A CA965148 A CA 965148A
- Authority
- CA
- Canada
- Prior art keywords
- admittance
- components
- electrical circuit
- measuring system
- condition measuring
- 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
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
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)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17353871A | 1971-08-20 | 1971-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA965148A true CA965148A (en) | 1975-03-25 |
Family
ID=22632483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA147,995A Expired CA965148A (en) | 1971-08-20 | 1972-07-26 | Condition measuring system using components of admittance of an electrical circuit |
Country Status (5)
Country | Link |
---|---|
US (1) | US3746975A (en) |
JP (2) | JPS5847662B2 (en) |
CA (1) | CA965148A (en) |
DE (1) | DE2240813C3 (en) |
GB (1) | GB1359778A (en) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3864974A (en) * | 1971-01-11 | 1975-02-11 | George P Rauchwerger | Capacitance probe and system for precision measurement of liquid level |
US3936738A (en) * | 1974-01-02 | 1976-02-03 | Drexelbrook Controls, Inc. | Method of and apparatus for measuring the amount of coating material applied to substrates |
US3993947A (en) * | 1974-09-19 | 1976-11-23 | Drexelbrook Controls, Inc. | Admittance measuring system for monitoring the condition of materials |
US4332167A (en) * | 1975-11-28 | 1982-06-01 | Drexelbrook Controls, Inc. | Method of making an RF admittance measuring probe and product thereof |
JPS52143018A (en) * | 1976-05-25 | 1977-11-29 | Teijin Ltd | Method of regenerating developer waste |
US4090408A (en) * | 1976-10-12 | 1978-05-23 | Hedrick Geoffrey S | Fluid quantity indicator |
US4370611A (en) * | 1977-11-01 | 1983-01-25 | Georgetown University | Identification of materials using their complex dielectric response |
US4174498A (en) * | 1978-03-30 | 1979-11-13 | Preikschat F K | Apparatus and method for providing separate conductivity, dielectric coefficient, and moisture measurements of particulate material |
US4181881A (en) * | 1978-05-15 | 1980-01-01 | Preikschat F K | Electrical impedance measuring apparatus for providing separate measurements of the conductivity and dielectric coefficient of various materials |
FR2430608A1 (en) * | 1978-07-06 | 1980-02-01 | Aerospatiale | Treated metal surface corrosion resistance measuring - by variable frequency digital techniques using in-phase and quadrature components of electrolyte metal interface admittance |
US4232300A (en) * | 1978-11-24 | 1980-11-04 | Drexelbrook Controls, Inc. | Level measuring system using admittance sensing |
US4301681A (en) * | 1979-09-06 | 1981-11-24 | Drexelbrook Controls, Inc. | Method of using capacitor probe with a semiconductive electrode |
DE2943198A1 (en) * | 1979-10-25 | 1981-05-14 | Eur-Control Källe AB, Säffle | DEVICE FOR MEASURING THE ELECTRICAL IMPEDANCE OF PARTICULAR PARTICULAR MATERIALS |
US4363030A (en) * | 1979-11-30 | 1982-12-07 | Drexelbrook Engineering Company | Fail-safe instrument system |
US4415859A (en) * | 1980-10-06 | 1983-11-15 | Texaco Inc. | Paraffin monitor |
US4391146A (en) * | 1981-06-01 | 1983-07-05 | Rosemount Inc. | Parallel T impedance measurement circuit for use with variable impedance sensor |
JPS58114731U (en) * | 1982-01-30 | 1983-08-05 | 山本電機インスツルメント株式会社 | Capacitive continuous level meter |
JPS58123325U (en) * | 1982-02-12 | 1983-08-22 | 山本電機インスツルメント株式会社 | Capacitive continuous level meter |
JPS5955439A (en) * | 1982-09-24 | 1984-03-30 | Konishiroku Photo Ind Co Ltd | Plate making method |
JPS5988738A (en) * | 1982-11-12 | 1984-05-22 | Mitsubishi Paper Mills Ltd | Rinsing acceleration liquid for photography |
US4568874A (en) * | 1983-02-17 | 1986-02-04 | Drexelbrook Controls, Inc. | RF Admittance apparatus and method for monitoring the contents of a pipe |
US4692685A (en) * | 1984-03-14 | 1987-09-08 | Blaze Kevin L | Electrical measuring apparatus, and methods for determining the condition or identity of biological material |
JPS6136744A (en) * | 1984-07-30 | 1986-02-21 | Fuji Photo Film Co Ltd | Treatment of silver halide photosensitive material for x-ray |
GB2170911B (en) * | 1985-01-24 | 1989-02-01 | Commw Scient Ind Res Org | Apparatus and method for measuring the moisture content of a substance |
US4817021A (en) * | 1985-01-24 | 1989-03-28 | Commonwealth Scientific And Industrial Research Organisation | Moisture and density determination |
US4676101A (en) * | 1986-09-03 | 1987-06-30 | Walbro Corporation | Capacitance-type material level indicator |
US5045797A (en) * | 1986-10-14 | 1991-09-03 | Drexelbrook Controls, Inc. | Continuous condition sensing system determining liquid level by admittance measurement |
DE3838608A1 (en) * | 1988-11-15 | 1990-05-17 | Lve Verfahrenselektronik Gmbh | Process and arrangement for determining a process variable in the heat treatment of metal parts |
EP0840168B1 (en) | 1996-10-31 | 2003-06-18 | Fuji Photo Film Co., Ltd. | Aminopolycarboxylic acid chelating agent, heavy metal chelate compound thereof, photographic additive and processing method |
WO1999006812A2 (en) | 1997-08-01 | 1999-02-11 | Drexelbrook Controls, Inc. | High accuracy measuring system |
US7167773B2 (en) * | 2001-03-21 | 2007-01-23 | Signature Control Systems | Process and apparatus for improving and controlling the curing of natural and synthetic moldable compounds |
US6774643B2 (en) | 2001-03-21 | 2004-08-10 | Signature Control Systems | Non-bridged single electrode impedance measurement system for determining a condition of a dielectric according to impedance related changes over a range of frequencies |
US7245985B2 (en) * | 2001-03-21 | 2007-07-17 | Signature Control Systems | Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds |
US6855791B2 (en) * | 2002-07-09 | 2005-02-15 | Signature Control Systems | Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds |
US20040133301A1 (en) * | 2002-07-09 | 2004-07-08 | Signature Control Systems | Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds |
US7340951B2 (en) * | 2005-11-04 | 2008-03-11 | David S. Nyce | Distributed impedance sensor |
US7676953B2 (en) | 2006-12-29 | 2010-03-16 | Signature Control Systems, Inc. | Calibration and metering methods for wood kiln moisture measurement |
RU2488130C2 (en) * | 2011-06-28 | 2013-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ижевский государственный технический университет имени М.Т.Калашникова" | Scanning meter of cg-dipole parameters |
CN109870210A (en) * | 2018-12-25 | 2019-06-11 | 骆杨斌 | Determination method, equipment and the device of liquid level in liquidometer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB911975A (en) * | ||||
US2008046A (en) * | 1931-11-18 | 1935-07-16 | Trojan Powder Co | Method for the testing of detonating fuse |
US3566259A (en) * | 1968-03-29 | 1971-02-23 | Petrolite Corp | Instrument for measuring conductance or capacitance of an electrical load during operation |
-
1971
- 1971-08-20 US US00173538A patent/US3746975A/en not_active Expired - Lifetime
-
1972
- 1972-07-26 CA CA147,995A patent/CA965148A/en not_active Expired
- 1972-08-18 GB GB3859772A patent/GB1359778A/en not_active Expired
- 1972-08-18 DE DE2240813A patent/DE2240813C3/en not_active Expired
- 1972-08-21 JP JP47082893A patent/JPS5847662B2/en not_active Expired
-
1981
- 1981-04-07 JP JP56051310A patent/JPS5756719A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5847662B2 (en) | 1983-10-24 |
DE2240813B2 (en) | 1979-05-31 |
DE2240813A1 (en) | 1973-03-01 |
DE2240813C3 (en) | 1980-02-07 |
US3746975A (en) | 1973-07-17 |
JPS4830496A (en) | 1973-04-21 |
GB1359778A (en) | 1974-07-10 |
JPS619566B2 (en) | 1986-03-25 |
JPS5756719A (en) | 1982-04-05 |
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