JPS57149922A - Ultrasonic liquid level gage - Google Patents
Ultrasonic liquid level gageInfo
- 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
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.
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)
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 |
-
1981
- 1981-03-12 JP JP56034586A patent/JPS57149922A/en active Pending
Cited By (3)
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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