JPS5664619A - Fuel guage - Google Patents
Fuel guageInfo
- Publication number
- JPS5664619A JPS5664619A JP14084179A JP14084179A JPS5664619A JP S5664619 A JPS5664619 A JP S5664619A JP 14084179 A JP14084179 A JP 14084179A JP 14084179 A JP14084179 A JP 14084179A JP S5664619 A JPS5664619 A JP S5664619A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- electrostatic capacitance
- value
- storage amount
- dielectric constant
- 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
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
PURPOSE: To detect the storage amount in a tank accurately with electrostatic capacitance value by taking out the electrostatic capacitance value of a sensor which senses the liquid level in the gap of double structured tubes as an AC voltage value with a specified relationship and utilizing the intrinsic dielectric constant of the fuel.
CONSTITUTION: The liquid level in the double structured tubes is sensed as the variation in electrostatic capacitance by using the intrinsic dielectric constant of the fuel. The sensor 1 is connected to a capacitance bridge 18 to which the AC voltage is applied from an oscillator 19. The output therefrom is amplified by amplifiers 19a and 20, rectified 21, and converted into a pulse signal by a V/F converter 22. The pulses are averaged by a time base 23, and indicated 24. By adjusting a variable capacitor Cv which is incorporated in said capacitance bridge 18, is obtained the AC voltage value eo=PK as the output of the amplifier 19a (where P is a proportional constant; and K is a factor which is proportional to the storage amount of the fuel, with 1 for full and 0 for empty). Thus, the storage amount in the tank can be accurately sensed by the value of the electrostatic capacitance by utilizing the intrinsic dielectric constant of the fuel.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14084179A JPS5664619A (en) | 1979-10-31 | 1979-10-31 | Fuel guage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14084179A JPS5664619A (en) | 1979-10-31 | 1979-10-31 | Fuel guage |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5664619A true JPS5664619A (en) | 1981-06-01 |
Family
ID=15277953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14084179A Pending JPS5664619A (en) | 1979-10-31 | 1979-10-31 | Fuel guage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5664619A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60135624U (en) * | 1984-02-21 | 1985-09-09 | カルソニックカンセイ株式会社 | Capacitive liquid level gauge |
KR101202924B1 (en) | 2010-10-02 | 2012-11-19 | 다임폴라특장주식회사 | Method and apparatus for gauging of Tank Level |
CN103234597A (en) * | 2013-04-18 | 2013-08-07 | 苏州赛智达智能科技有限公司 | Side-structured primary and secondary capacitance-type sensor |
-
1979
- 1979-10-31 JP JP14084179A patent/JPS5664619A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60135624U (en) * | 1984-02-21 | 1985-09-09 | カルソニックカンセイ株式会社 | Capacitive liquid level gauge |
KR101202924B1 (en) | 2010-10-02 | 2012-11-19 | 다임폴라특장주식회사 | Method and apparatus for gauging of Tank Level |
CN103234597A (en) * | 2013-04-18 | 2013-08-07 | 苏州赛智达智能科技有限公司 | Side-structured primary and secondary capacitance-type sensor |
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