JP2930340B2 - コーティング感応物質条件監視システム - Google Patents
コーティング感応物質条件監視システムInfo
- Publication number
- JP2930340B2 JP2930340B2 JP1510850A JP51085089A JP2930340B2 JP 2930340 B2 JP2930340 B2 JP 2930340B2 JP 1510850 A JP1510850 A JP 1510850A JP 51085089 A JP51085089 A JP 51085089A JP 2930340 B2 JP2930340 B2 JP 2930340B2
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- substance
- output
- bridge
- level
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/266—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23690488A | 1988-08-25 | 1988-08-25 | |
US236,904 | 1988-08-25 | ||
PCT/US1989/003694 WO1990002319A1 (en) | 1988-08-25 | 1989-08-25 | Coating-responsive material condition monitoring system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04501770A JPH04501770A (ja) | 1992-03-26 |
JP2930340B2 true JP2930340B2 (ja) | 1999-08-03 |
Family
ID=22891481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1510850A Expired - Lifetime JP2930340B2 (ja) | 1988-08-25 | 1989-08-25 | コーティング感応物質条件監視システム |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2930340B2 (he) |
CA (1) | CA1338881C (he) |
DE (1) | DE3990989T (he) |
GB (1) | GB2247529B (he) |
WO (1) | WO1990002319A1 (he) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2351901B (en) * | 1999-07-14 | 2001-06-27 | Earth Anchors Ltd | A bench |
KR100434930B1 (ko) * | 2001-03-07 | 2004-06-14 | 박경래 | 양궁용 안정기의 보강장치 |
DE102007049526A1 (de) * | 2007-10-15 | 2009-04-16 | Endress + Hauser Gmbh + Co. Kg | Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße |
SE541463C2 (sv) * | 2017-10-06 | 2019-10-08 | Sealwacs Ab | Plastsvetssensor |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4800755A (en) * | 1982-08-25 | 1989-01-31 | Berwind Corporation | Capacitance-type material level indicator |
US4686857A (en) * | 1983-03-04 | 1987-08-18 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Method and apparatus for evaluating the performance of dielectric substances |
US4624139A (en) * | 1984-09-21 | 1986-11-25 | Berwind Corporation | Capacitance-type material level indicator |
US4676100A (en) * | 1984-10-31 | 1987-06-30 | Berwind Corporation | Capacitance-type material level indicator |
US4638305A (en) * | 1985-03-22 | 1987-01-20 | General Motors Corporation | Apparatus for detecting water in fuel |
DE3537129C2 (de) * | 1985-10-18 | 1996-06-13 | Crostack Horst Artur Prof Dr I | Verfahren und Vorrichtung zur zerstörungsfreien Werkstoffprüfung, insbesondere zur Dickenbestimmung |
US4723122A (en) * | 1985-10-25 | 1988-02-02 | Drexelbrook Controls, Inc. | Remotely calibratable instrument system |
US4757252A (en) * | 1985-10-25 | 1988-07-12 | Drexelbrook Controls, Inc. | Probe system for measuring the condition of materials |
US4676101A (en) * | 1986-09-03 | 1987-06-30 | Walbro Corporation | Capacitance-type material level indicator |
US4749988A (en) * | 1986-11-20 | 1988-06-07 | Imtec Products, Inc. | Non-invasive liquid level sensor |
-
1989
- 1989-08-25 JP JP1510850A patent/JP2930340B2/ja not_active Expired - Lifetime
- 1989-08-25 WO PCT/US1989/003694 patent/WO1990002319A1/en active Application Filing
- 1989-08-25 CA CA 609418 patent/CA1338881C/en not_active Expired - Fee Related
- 1989-08-25 DE DE19893990989 patent/DE3990989T/de not_active Withdrawn
-
1991
- 1991-02-25 GB GB9103868A patent/GB2247529B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1990002319A1 (en) | 1990-03-08 |
GB2247529A (en) | 1992-03-04 |
GB9103868D0 (en) | 1991-05-15 |
CA1338881C (en) | 1997-01-28 |
JPH04501770A (ja) | 1992-03-26 |
DE3990989T (he) | 1992-01-30 |
GB2247529B (en) | 1993-04-14 |
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