JPS5746125A - Electrostatic capacity type liquid meter - Google Patents
Electrostatic capacity type liquid meterInfo
- Publication number
- JPS5746125A JPS5746125A JP55122591A JP12259180A JPS5746125A JP S5746125 A JPS5746125 A JP S5746125A JP 55122591 A JP55122591 A JP 55122591A JP 12259180 A JP12259180 A JP 12259180A JP S5746125 A JPS5746125 A JP S5746125A
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- electrostatic capacity
- signal
- electrostatic
- detecting part
- 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.)
- Pending
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
PURPOSE:To enable to perform an accurate measurement of a liquid level even in case a distance between a detecting part and a consol is long, by a method wherein a signal converter, which converts an electrostatic capacity between each pair of electrodes into other electric signal than the electrostatic capacity, is mounted in the proximity of the electrode. CONSTITUTION:Electrodes 1-5 are concentrically securely held in a detecting part S, and the electrodes 1, 2, and 3 are situated in the proximity of the bottom of an oil storage tank T. An electrostatic capacity C1 between the electrodes is unchangeable if a type of oil is determined. The electrodes 3-5 extend vertically, and an electrostatic capacity C2 changes according to an oil surface level. An output of each electrode is inputted to a signal converter 10 consisting of IC, and the electrostatic capacities C1, C2 are converted into electric signals S1 and S2, corresponding to the electrostatic capacities, for example, frequency, voltage, etc. The signals are fed to a signal circuit through a multicore 7 for the operational processing to find a height of a liquid level. This prevents damping of a signal and enables to perform an accurate measurement even if a distance between a detecting part and a consol is long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55122591A JPS5746125A (en) | 1980-09-04 | 1980-09-04 | Electrostatic capacity type liquid meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55122591A JPS5746125A (en) | 1980-09-04 | 1980-09-04 | Electrostatic capacity type liquid meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5746125A true JPS5746125A (en) | 1982-03-16 |
Family
ID=14839709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55122591A Pending JPS5746125A (en) | 1980-09-04 | 1980-09-04 | Electrostatic capacity type liquid meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5746125A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8105241A (en) * | 1981-09-25 | 1983-04-18 | Tokyo Tatsuno Kk | MEASURING DEVICE FOR MEASURING A LIQUID QUANTITY. |
| JPS59182319A (en) * | 1983-03-31 | 1984-10-17 | Tokyo Tatsuno Co Ltd | Capacitance type liquid level detector |
-
1980
- 1980-09-04 JP JP55122591A patent/JPS5746125A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8105241A (en) * | 1981-09-25 | 1983-04-18 | Tokyo Tatsuno Kk | MEASURING DEVICE FOR MEASURING A LIQUID QUANTITY. |
| JPS59182319A (en) * | 1983-03-31 | 1984-10-17 | Tokyo Tatsuno Co Ltd | Capacitance type liquid level detector |
| JPH037245B2 (en) * | 1983-03-31 | 1991-02-01 | Tokyo Tatsuno Kk |
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