JPS57149922A - Ultrasonic liquid level gage - Google Patents

Ultrasonic liquid level gage

Info

Publication number
JPS57149922A
JPS57149922A JP56034586A JP3458681A JPS57149922A JP S57149922 A JPS57149922 A JP S57149922A JP 56034586 A JP56034586 A JP 56034586A JP 3458681 A JP3458681 A JP 3458681A JP S57149922 A JPS57149922 A JP S57149922A
Authority
JP
Japan
Prior art keywords
liquid level
positions
receivers
transmitters
supporting body
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
Application number
JP56034586A
Other languages
Japanese (ja)
Inventor
Keiji Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56034586A priority Critical patent/JPS57149922A/en
Publication of JPS57149922A publication Critical patent/JPS57149922A/en
Pending 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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material

Landscapes

  • Physics & Mathematics (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 detect momentary liquid level positions accurately without receiving the influence of the fluctuations of ambient temp. and the characteristics of transmitters and receivers by detecting the liquid level positions directly with a pair of ultrasonic transmitters and receivers and reading the heights thereof directly from the relative positions of a supporting body. CONSTITUTION:Ultrasonic signals are emitted with a transmitter 7 by an electric power source 16 and are received with microphones 8, 9. The respective microphones transmit the output signals to a signal processing part 19 according to the positions above the liquid level 3 or in the liquid. The part 19 feeds an output signal 1 or 0 to a control circuit 20 according to the input signals. Thereby, a motor 13 is driven clockwise/counterclockwise. As a result, a supporting body 10 is moved upward or downward. The position in the vertical direction of the body 10 is detected with a position transducer 21, whereby the display of its position is made possible.
JP56034586A 1981-03-12 1981-03-12 Ultrasonic liquid level gage Pending JPS57149922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56034586A JPS57149922A (en) 1981-03-12 1981-03-12 Ultrasonic liquid level gage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56034586A JPS57149922A (en) 1981-03-12 1981-03-12 Ultrasonic liquid level gage

Publications (1)

Publication Number Publication Date
JPS57149922A true JPS57149922A (en) 1982-09-16

Family

ID=12418419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56034586A Pending JPS57149922A (en) 1981-03-12 1981-03-12 Ultrasonic liquid level gage

Country Status (1)

Country Link
JP (1) JPS57149922A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01155828A (en) * 1987-12-14 1989-06-19 Koorin Denshi Kk Pulse wave detector
KR100412798B1 (en) * 2000-12-07 2003-12-31 기아자동차주식회사 A fuel measuring device having a compensatory measure of varying fuel in tank
JP2015094638A (en) * 2013-11-11 2015-05-18 日本郵船株式会社 Measurement instrument, method, and system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01155828A (en) * 1987-12-14 1989-06-19 Koorin Denshi Kk Pulse wave detector
KR100412798B1 (en) * 2000-12-07 2003-12-31 기아자동차주식회사 A fuel measuring device having a compensatory measure of varying fuel in tank
JP2015094638A (en) * 2013-11-11 2015-05-18 日本郵船株式会社 Measurement instrument, method, and system

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