JPS6310771B2 - - Google Patents

Info

Publication number
JPS6310771B2
JPS6310771B2 JP56039186A JP3918681A JPS6310771B2 JP S6310771 B2 JPS6310771 B2 JP S6310771B2 JP 56039186 A JP56039186 A JP 56039186A JP 3918681 A JP3918681 A JP 3918681A JP S6310771 B2 JPS6310771 B2 JP S6310771B2
Authority
JP
Japan
Prior art keywords
circuit
pulse
oscillation circuit
period
output
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
Application number
JP56039186A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57153222A (en
Inventor
Kyoshi Yamaki
Hidetaka Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP56039186A priority Critical patent/JPS57153222A/ja
Priority to US06/357,585 priority patent/US4444051A/en
Priority to EP82102185A priority patent/EP0061148B1/en
Priority to DE8282102185T priority patent/DE3272970D1/de
Publication of JPS57153222A publication Critical patent/JPS57153222A/ja
Publication of JPS6310771B2 publication Critical patent/JPS6310771B2/ja
Granted legal-status Critical Current

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

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)
  • Transmission And Conversion Of Sensor Element Output (AREA)
JP56039186A 1981-03-18 1981-03-18 Liquid quantity measuring circuit Granted JPS57153222A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56039186A JPS57153222A (en) 1981-03-18 1981-03-18 Liquid quantity measuring circuit
US06/357,585 US4444051A (en) 1981-03-18 1982-03-12 Electronic liquid level gauge
EP82102185A EP0061148B1 (en) 1981-03-18 1982-03-17 Electronic liquid level gauge
DE8282102185T DE3272970D1 (en) 1981-03-18 1982-03-17 Electronic liquid level gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56039186A JPS57153222A (en) 1981-03-18 1981-03-18 Liquid quantity measuring circuit

Publications (2)

Publication Number Publication Date
JPS57153222A JPS57153222A (en) 1982-09-21
JPS6310771B2 true JPS6310771B2 (enrdf_load_stackoverflow) 1988-03-09

Family

ID=12546072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56039186A Granted JPS57153222A (en) 1981-03-18 1981-03-18 Liquid quantity measuring circuit

Country Status (1)

Country Link
JP (1) JPS57153222A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006343338A (ja) * 2006-06-21 2006-12-21 Seiko Epson Corp 液体消費状態検出器
JP2006343337A (ja) * 2006-06-21 2006-12-21 Seiko Epson Corp 液体消費状態検出器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006343338A (ja) * 2006-06-21 2006-12-21 Seiko Epson Corp 液体消費状態検出器
JP2006343337A (ja) * 2006-06-21 2006-12-21 Seiko Epson Corp 液体消費状態検出器

Also Published As

Publication number Publication date
JPS57153222A (en) 1982-09-21

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