GB2247529B - Coating-responsive material condition monitoring system - Google Patents
Coating-responsive material condition monitoring systemInfo
- Publication number
- GB2247529B GB2247529B GB9103868A GB9103868A GB2247529B GB 2247529 B GB2247529 B GB 2247529B GB 9103868 A GB9103868 A GB 9103868A GB 9103868 A GB9103868 A GB 9103868A GB 2247529 B GB2247529 B GB 2247529B
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- monitoring system
- condition monitoring
- responsive material
- material condition
- 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 - Fee Related
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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23690488A | 1988-08-25 | 1988-08-25 | |
PCT/US1989/003694 WO1990002319A1 (en) | 1988-08-25 | 1989-08-25 | Coating-responsive material condition monitoring system |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9103868D0 GB9103868D0 (en) | 1991-05-15 |
GB2247529A GB2247529A (en) | 1992-03-04 |
GB2247529B true GB2247529B (en) | 1993-04-14 |
Family
ID=22891481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9103868A Expired - Fee Related GB2247529B (en) | 1988-08-25 | 1991-02-25 | Coating-responsive material condition monitoring system |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2930340B2 (en) |
CA (1) | CA1338881C (en) |
DE (1) | DE3990989T (en) |
GB (1) | GB2247529B (en) |
WO (1) | WO1990002319A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2351902B (en) * | 1999-07-14 | 2001-06-27 | Earth Anchors Ltd | A bench |
KR100434930B1 (en) * | 2001-03-07 | 2004-06-14 | 박경래 | A reinforcing device for stabilizer of western-style bow |
DE102007049526A1 (en) * | 2007-10-15 | 2009-04-16 | Endress + Hauser Gmbh + Co. Kg | Medium's i.e. dielectric fluid, process factor determining and/or monitoring device, has probe electrode arranged in such manner that electrode opens out on end surface of sensor unit, where end surface is provided in split-free manner |
SE541463C2 (en) * | 2017-10-06 | 2019-10-08 | Sealwacs Ab | Plastic welding sensor |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4624139A (en) * | 1984-09-21 | 1986-11-25 | Berwind Corporation | Capacitance-type material level indicator |
US4638305A (en) * | 1985-03-22 | 1987-01-20 | General Motors Corporation | Apparatus for detecting water in fuel |
GB2184241A (en) * | 1985-10-25 | 1987-06-17 | Drexelbrook Controls | Remotely calibratable instrument system |
US4676101A (en) * | 1986-09-03 | 1987-06-30 | Walbro Corporation | Capacitance-type material level indicator |
US4676100A (en) * | 1984-10-31 | 1987-06-30 | 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 |
US4749988A (en) * | 1986-11-20 | 1988-06-07 | Imtec Products, Inc. | Non-invasive liquid level sensor |
US4757252A (en) * | 1985-10-25 | 1988-07-12 | Drexelbrook Controls, Inc. | Probe system for measuring the condition of materials |
US4800755A (en) * | 1982-08-25 | 1989-01-31 | Berwind Corporation | Capacitance-type material level indicator |
US4803428A (en) * | 1985-10-18 | 1989-02-07 | Crostack Horst Artur | Method and apparatus for non-destructive material testing, particularly for determination of thickness of coating layers on a base material by measuring electrical conductivity or magnetic permeability at the finished specimen |
-
1989
- 1989-08-25 WO PCT/US1989/003694 patent/WO1990002319A1/en active Application Filing
- 1989-08-25 DE DE19893990989 patent/DE3990989T/de not_active Withdrawn
- 1989-08-25 JP JP1510850A patent/JP2930340B2/en not_active Expired - Lifetime
- 1989-08-25 CA CA 609418 patent/CA1338881C/en not_active Expired - Fee Related
-
1991
- 1991-02-25 GB GB9103868A patent/GB2247529B/en not_active Expired - Fee Related
Patent Citations (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 |
US4803428A (en) * | 1985-10-18 | 1989-02-07 | Crostack Horst Artur | Method and apparatus for non-destructive material testing, particularly for determination of thickness of coating layers on a base material by measuring electrical conductivity or magnetic permeability at the finished specimen |
GB2184241A (en) * | 1985-10-25 | 1987-06-17 | Drexelbrook Controls | 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 |
Also Published As
Publication number | Publication date |
---|---|
WO1990002319A1 (en) | 1990-03-08 |
DE3990989T (en) | 1992-01-30 |
GB2247529A (en) | 1992-03-04 |
JPH04501770A (en) | 1992-03-26 |
GB9103868D0 (en) | 1991-05-15 |
JP2930340B2 (en) | 1999-08-03 |
CA1338881C (en) | 1997-01-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950825 |
|
728V | Application for restoration filed (sect. 28/1977) | ||
728Y | Application for restoration allowed (sect. 28/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20020825 |