GB925656A - Improvements relating to electrical apparatus utilising capacity-influenced detecting elements - Google Patents
Improvements relating to electrical apparatus utilising capacity-influenced detecting elementsInfo
- Publication number
- GB925656A GB925656A GB2926258A GB2926258A GB925656A GB 925656 A GB925656 A GB 925656A GB 2926258 A GB2926258 A GB 2926258A GB 2926258 A GB2926258 A GB 2926258A GB 925656 A GB925656 A GB 925656A
- Authority
- GB
- United Kingdom
- Prior art keywords
- web
- detector
- insulating material
- conductor
- influenced
- 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
- 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
- G01F23/268—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 mounting arrangements of probes
-
- 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
- G01F23/265—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 for discrete levels
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/12—Arrangements for exhibiting specific transmission characteristics
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
925,656. Determining levels of fluent materials. THOMAS INDUSTRIAL AUTOMATION Ltd. Aug. 17, 1959 [Sept. 12, 1958], No. 29262/58. Class 37. A detecting element for a capacitive type measuring apparatus comprises two parallel conductors each of uniform circular section throughout its length and supported by mounting means, the two conductors being separated by the width of a thin web of insulating material which is also of uniform section throughout its length. Figs. 1, 2 show an element comprising a rigid conductor 1 supporting a smaller conductor 3 by means of a web 2 of insulating material. The detector may be mounted as shown for use as a level detector for powder or granular material, the conductor 1 being earthed so that accumulation of powder on its upper surface will not give erroneous indication. The detector may be inverted for use with viscous fluids. Fig. 3 shows a vertical detector comprising wires 5, 6 of the same diameter moulded into the edges of a web 7 of insulating material. The Specification refers to mounting means 8 and tensioning of the web 7 by means of a weight 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2926258A GB925656A (en) | 1958-09-12 | 1958-09-12 | Improvements relating to electrical apparatus utilising capacity-influenced detecting elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2926258A GB925656A (en) | 1958-09-12 | 1958-09-12 | Improvements relating to electrical apparatus utilising capacity-influenced detecting elements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB925656A true GB925656A (en) | 1963-05-08 |
Family
ID=10288739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2926258A Expired GB925656A (en) | 1958-09-12 | 1958-09-12 | Improvements relating to electrical apparatus utilising capacity-influenced detecting elements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB925656A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3710244A (en) * | 1971-01-11 | 1973-01-09 | G Rauchwerger | Capacitance probe for detecting moisture with very long cables |
US3824460A (en) * | 1973-04-02 | 1974-07-16 | R Gustafson | Leakage sensor |
US4122718A (en) * | 1975-07-16 | 1978-10-31 | Gustafson Reuben V | Liquid level sensor |
US4389900A (en) * | 1979-06-14 | 1983-06-28 | The United States Of America As Represented By The Secretary Of The Interior | Capacitance probe sensor device |
-
1958
- 1958-09-12 GB GB2926258A patent/GB925656A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3710244A (en) * | 1971-01-11 | 1973-01-09 | G Rauchwerger | Capacitance probe for detecting moisture with very long cables |
US3824460A (en) * | 1973-04-02 | 1974-07-16 | R Gustafson | Leakage sensor |
DE2415640A1 (en) * | 1973-04-02 | 1974-10-17 | Reuben V Gustafson | CAPACITIVE SENSOR FOR DETERMINING THE PRESENCE OF A LIQUID |
US4122718A (en) * | 1975-07-16 | 1978-10-31 | Gustafson Reuben V | Liquid level sensor |
US4389900A (en) * | 1979-06-14 | 1983-06-28 | The United States Of America As Represented By The Secretary Of The Interior | Capacitance probe sensor device |
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