JPS6346366B2 - - Google Patents
Info
- Publication number
- JPS6346366B2 JPS6346366B2 JP50113544A JP11354475A JPS6346366B2 JP S6346366 B2 JPS6346366 B2 JP S6346366B2 JP 50113544 A JP50113544 A JP 50113544A JP 11354475 A JP11354475 A JP 11354475A JP S6346366 B2 JPS6346366 B2 JP S6346366B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- admittance
- circuit
- output
- capacitor
- 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
- 239000000523 sample Substances 0.000 claims description 59
- 239000003990 capacitor Substances 0.000 claims description 55
- 238000005259 measurement Methods 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 18
- 239000004020 conductor Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000012212 insulator Substances 0.000 description 6
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 229910052754 neon Inorganic materials 0.000 description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241001598984 Bromius obscurus Species 0.000 description 1
- 101100484930 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) VPS41 gene Proteins 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- 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
- G01N27/028—Circuits therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/507,540 US3993947A (en) | 1974-09-19 | 1974-09-19 | Admittance measuring system for monitoring the condition of materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5182651A JPS5182651A (US07534539-20090519-C00280.png) | 1976-07-20 |
| JPS6346366B2 true JPS6346366B2 (US07534539-20090519-C00280.png) | 1988-09-14 |
Family
ID=24019038
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50113544A Expired JPS6346366B2 (US07534539-20090519-C00280.png) | 1974-09-19 | 1975-09-18 | |
| JP63102808A Granted JPS63289423A (ja) | 1974-09-19 | 1988-04-27 | 導電性又は半導電性流動物質の表面レベル測定方法及び装置 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63102808A Granted JPS63289423A (ja) | 1974-09-19 | 1988-04-27 | 導電性又は半導電性流動物質の表面レベル測定方法及び装置 |
Country Status (5)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0332054U (US07534539-20090519-C00280.png) * | 1989-08-04 | 1991-03-28 |
Families Citing this family (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1102411A (en) * | 1976-11-22 | 1981-06-02 | Frederick L. Maltby | Admittance measuring system for monitoring the condition of materials |
| US4220915A (en) * | 1978-06-28 | 1980-09-02 | Rca Corporation | Resistivity measurement system |
| US4232300A (en) * | 1978-11-24 | 1980-11-04 | Drexelbrook Controls, Inc. | Level measuring system using admittance sensing |
| DE2901516C2 (de) * | 1979-01-16 | 1985-01-24 | VEGA Grieshaber GmbH & Co, 7620 Wolfach | Anordnung zur Erzeugung eines einer Kapazität proportionalen Signals |
| US4250490A (en) * | 1979-01-19 | 1981-02-10 | Rosemount Inc. | Two wire transmitter for converting a varying signal from a remote reactance sensor to a DC current signal |
| DE2943198A1 (de) * | 1979-10-25 | 1981-05-14 | Eur-Control Källe AB, Säffle | Vorrichtung zum messen der elektrischen impedanz von insbesondere teilchenfoermigen materialien |
| US4363030A (en) * | 1979-11-30 | 1982-12-07 | Drexelbrook Engineering Company | Fail-safe instrument system |
| US4347741A (en) * | 1980-07-17 | 1982-09-07 | Endress & Hauser, Inc. | Control system for a capacitive level sensor |
| DE3239072A1 (de) * | 1982-10-22 | 1984-04-26 | Werner Prof. Dr. 2308 Preetz Kroebel | Widerstandswandler mit einem stromlosen anschluss des primaerkreises eines transformators an das messobjekt |
| DE3248534C2 (de) * | 1982-12-29 | 1985-11-21 | Rinat Šagavaleevič Šagabeev | Elektromagnetisches Defektoskop |
| US4568874A (en) * | 1983-02-17 | 1986-02-04 | Drexelbrook Controls, Inc. | RF Admittance apparatus and method for monitoring the contents of a pipe |
| US4723122A (en) * | 1985-10-25 | 1988-02-02 | Drexelbrook Controls, Inc. | Remotely calibratable instrument system |
| US4849754A (en) * | 1985-10-25 | 1989-07-18 | Drexelbrook Controls | Remotely calibratable instrument system |
| US5045797A (en) * | 1986-10-14 | 1991-09-03 | Drexelbrook Controls, Inc. | Continuous condition sensing system determining liquid level by admittance measurement |
| DE4001274A1 (de) * | 1989-01-18 | 1990-07-26 | Knick Elekt Messgeraete Gmbh | Verfahren und schaltungsanordnung zum dynamischen messen eines ohmschen widerstandes |
| WO1992004669A1 (en) * | 1990-09-06 | 1992-03-19 | Drexelbrook Controls Inc. | Improved imstrumentation system |
| US5135485A (en) * | 1991-02-25 | 1992-08-04 | Louis Cohen | Capacitance-type fluid level sensor for i.v. and catheter bags |
| FR2686698A1 (fr) * | 1992-01-28 | 1993-07-30 | Girardeau Francois | Dispositif electronique pour effectuer des analyses de materiaux gazeux, liquides ou solides. |
| DE4203725C2 (de) * | 1992-02-08 | 1994-01-13 | Vega Grieshaber Gmbh & Co | Anordnung zur potentialgetrennten Kapazitätsmessung, insbesondere zur kapazitiven Füllstandmessung |
| US5402072A (en) * | 1992-02-28 | 1995-03-28 | International Business Machines Corporation | System and method for testing and fault isolation of high density passive boards and substrates |
| DE4244739C2 (de) * | 1992-10-20 | 1995-06-29 | Grieshaber Vega Kg | Anordnung zur Auswertung der Admittanz einer variablen Meßkapazität, insbesondere für kapazitive Füllstandssonden |
| US5461321A (en) * | 1993-09-17 | 1995-10-24 | Penberthy, Inc. | Apparatus and method for measuring capacitance from the duration of a charge-discharge charge cycle |
| DE4401147A1 (de) * | 1994-01-17 | 1995-07-20 | Sigma Electronic Gmbh Erfurt I | Verfahren und Schaltungsanordnung zur Charakterisierung der Eigenschaften von Stoffen |
| DE19617297A1 (de) * | 1996-04-30 | 1997-11-13 | Brand Gerhart Rosemarie | Simultane Detektion von oxidierbaren und reduzierbaren Gasen mit Metalloxidsensoren unter Einsatz von Impedanzspektroskopie |
| US6215319B1 (en) | 1997-08-01 | 2001-04-10 | Kevin G. Hafer | High accuracy measuring system |
| US5973415A (en) * | 1997-08-28 | 1999-10-26 | Kay-Ray/Sensall, Inc. | Capacitance level sensor |
| US6014100A (en) * | 1998-02-27 | 2000-01-11 | Vega Grieshaber Kg | Two-wire RADAR sensor with intermittently operating circuitry components |
| US6323632B1 (en) * | 1999-08-13 | 2001-11-27 | Coulter International Corp. | Solid state RF oscillator-detector for flow cytometer |
| US6359449B1 (en) | 1999-06-29 | 2002-03-19 | Intellectual Property Llc | Single coil conductance measuring apparatus |
| US6479979B1 (en) * | 1999-07-09 | 2002-11-12 | Srico, Inc. | Opto-electric device for measuring the root-mean-square value of an alternating current voltage |
| US6396284B1 (en) * | 2000-06-09 | 2002-05-28 | Ramcom Systems, Inc. | Ground resistance monitor |
| US6471106B1 (en) | 2001-11-15 | 2002-10-29 | Intellectual Property Llc | Apparatus and method for restricting the discharge of fasteners from a tool |
| US6486679B1 (en) * | 2002-01-21 | 2002-11-26 | Kenneth David Holt | Wide-band ratiometric radio frequency bridge |
| US6683464B2 (en) | 2002-03-01 | 2004-01-27 | Kavlico Corporation | Stabilized conductivity sensing system |
| US7109728B2 (en) | 2003-02-25 | 2006-09-19 | Agilent Technologies, Inc. | Probe based information storage for probes used for opens detection in in-circuit testing |
| US6901336B2 (en) * | 2003-03-31 | 2005-05-31 | Agilent Technologies, Inc. | Method and apparatus for supplying power, and channeling analog measurement and communication signals over single pair of wires |
| US7452457B2 (en) * | 2003-06-20 | 2008-11-18 | Roche Diagnostics Operations, Inc. | System and method for analyte measurement using dose sufficiency electrodes |
| US7488601B2 (en) * | 2003-06-20 | 2009-02-10 | Roche Diagnostic Operations, Inc. | System and method for determining an abused sensor during analyte measurement |
| US6826952B1 (en) * | 2003-08-11 | 2004-12-07 | Ingersoll-Rand Company | Multiple tank level indication system and method |
| US20080054084A1 (en) * | 2006-08-29 | 2008-03-06 | American Standard International Inc. | Two-wire power and communication link for a thermostat |
| US8085165B2 (en) * | 2007-02-09 | 2011-12-27 | Luna Innovations Incorporated | Wireless corrosion sensor |
| DE102007008358A1 (de) * | 2007-02-16 | 2008-08-21 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße |
| CN102035571B (zh) * | 2009-10-03 | 2014-01-08 | 瑞昱半导体股份有限公司 | 信号传收电路以及噪声抑制电路 |
| RU2488130C2 (ru) * | 2011-06-28 | 2013-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ижевский государственный технический университет имени М.Т.Калашникова" | Сканирующий измеритель параметров cg-двухполюсников |
| US8756992B2 (en) | 2011-09-14 | 2014-06-24 | Alstom Technology Ltd | Level detector for measuring foam and aerated slurry level in a wet flue gas desulfurization absorber tower |
| US9638763B2 (en) * | 2013-12-31 | 2017-05-02 | Texas Instruments Incorporated | Resonant impedance sensing with a negative impedance control loop implemented with synchronized class D and output comparators |
| TWI553300B (zh) | 2015-12-01 | 2016-10-11 | 財團法人工業技術研究院 | 液面感測裝置 |
| CN106404844A (zh) * | 2016-08-26 | 2017-02-15 | 国网山东省电力公司高唐县供电公司 | 变压器绕组材质鉴定方法 |
| DE102017128440A1 (de) * | 2017-11-30 | 2019-06-06 | Vega Grieshaber Kg | Impedanzgrenzstandsensor |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3571703A (en) * | 1968-10-11 | 1971-03-23 | Alfred Wallace Russell | Resonance-type inductance or capacitance meter |
| US3626285A (en) * | 1969-08-04 | 1971-12-07 | Kev Electronics Corp | Testing apparatus for voltage-variable capacitors employing phase-locked oscillators |
| US3646538A (en) * | 1969-10-27 | 1972-02-29 | Rosemount Eng Co Ltd | Transducer circuitry for converting a capacitance signal to a dc current signal |
| US3624541A (en) * | 1969-11-03 | 1971-11-30 | Moisture Register Co | Oscillator circuit |
| US3646434A (en) * | 1969-11-12 | 1972-02-29 | Industrial Nucleonics Corp | Standardization of dielectric materials gauges having capacitive probes with remotely controlled balancing circuits using varactors |
| US3706980A (en) * | 1970-04-27 | 1972-12-19 | Drexelbrook Controls | Rf system for measuring the level of materials |
| US3648165A (en) * | 1970-09-24 | 1972-03-07 | Sun Oil Co | Capacitance-measuring apparatus including means maintaining the voltage across the unknown capacitance constant |
| US3781672A (en) * | 1971-05-10 | 1973-12-25 | Drexelbrook Controls | Continuous condition measuring system |
| US3778705A (en) * | 1971-05-24 | 1973-12-11 | Drexelbrook Controls | Susceptance measuring system for indicating condition of a material |
| US3746975A (en) * | 1971-08-20 | 1973-07-17 | Drexelbrook Controls | Measuring characteristics of materials by using susceptive and conductive components of admittance |
| CA943187A (en) * | 1972-06-29 | 1974-03-05 | Her Majesty In Right Of Canada As Represented By The Minister Of The Env Ironment | Wood slope-of-grain indicator |
-
1974
- 1974-09-19 US US05/507,540 patent/US3993947A/en not_active Expired - Lifetime
-
1975
- 1975-09-10 CA CA235,144A patent/CA1050114A/en not_active Expired
- 1975-09-17 GB GB38248/75A patent/GB1528167A/en not_active Expired
- 1975-09-18 JP JP50113544A patent/JPS6346366B2/ja not_active Expired
- 1975-09-19 DE DE19752541908 patent/DE2541908A1/de active Granted
-
1976
- 1976-11-22 US US05/743,618 patent/US4146834A/en not_active Expired - Lifetime
-
1988
- 1988-04-27 JP JP63102808A patent/JPS63289423A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0332054U (US07534539-20090519-C00280.png) * | 1989-08-04 | 1991-03-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| US3993947B1 (US07534539-20090519-C00280.png) | 1992-07-14 |
| JPS63289423A (ja) | 1988-11-25 |
| JPH0248844B2 (US07534539-20090519-C00280.png) | 1990-10-26 |
| US4146834A (en) | 1979-03-27 |
| DE2541908C2 (US07534539-20090519-C00280.png) | 1987-08-20 |
| CA1050114A (en) | 1979-03-06 |
| DE2541908A1 (de) | 1976-04-08 |
| US4146834B1 (US07534539-20090519-C00280.png) | 1992-09-22 |
| GB1528167A (en) | 1978-10-11 |
| JPS5182651A (US07534539-20090519-C00280.png) | 1976-07-20 |
| US3993947A (en) | 1976-11-23 |
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