JPS574519A - Level measuring device - Google Patents
Level measuring deviceInfo
- Publication number
- JPS574519A JPS574519A JP7768180A JP7768180A JPS574519A JP S574519 A JPS574519 A JP S574519A JP 7768180 A JP7768180 A JP 7768180A JP 7768180 A JP7768180 A JP 7768180A JP S574519 A JPS574519 A JP S574519A
- Authority
- JP
- Japan
- Prior art keywords
- adjusts
- adjuster
- level
- measured
- 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.)
- 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
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 facilitate adjustment, by a method wherein a device provides with an adjuster, which adjusts an input voltage of a comparison amplifier to a 0 volt, an adjuster which adjusts the output of the comparison amplifier to a level to be measured, and a sensitivity adjuster which adjusts so that a level changing an object to be measured and the output are proportioned to each other. CONSTITUTION:A level measuring device incorporates a pulse generator PG, a detecting circuit DC, a double-shielded lead cable RC1, amplifiers A1, A2, A3, and the like. Additionally, the measuring device provides with an adjuster VR1 which adjusts the input voltage of the amplifier A3 to a 0 volt, a sensitivity adjuster VR2 which adjusts so that a change in a level of an object to be measured and the output are proportioned to each other, and an adjuster VR3 which adjusts the output of the sensitivity of the comparison amplifier A3 to the level of the object to be measured when the input of the comparison amplifier A3 is adjusted to a 0 volt, and the like. This constitution permits the facilitation of the adjustment of a 0 point by means of a 0 point adjusting circuit and of the level adjustment of the current amount of the object to be measured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7768180A JPS574519A (en) | 1980-06-11 | 1980-06-11 | Level measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7768180A JPS574519A (en) | 1980-06-11 | 1980-06-11 | Level measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS574519A true JPS574519A (en) | 1982-01-11 |
Family
ID=13640626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7768180A Pending JPS574519A (en) | 1980-06-11 | 1980-06-11 | Level measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS574519A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017534893A (en) * | 2014-11-18 | 2017-11-24 | バーサム マテリアルズ ユーエス,リミティド ライアビリティ カンパニー | Ultrasonic liquid level sensing system |
-
1980
- 1980-06-11 JP JP7768180A patent/JPS574519A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017534893A (en) * | 2014-11-18 | 2017-11-24 | バーサム マテリアルズ ユーエス,リミティド ライアビリティ カンパニー | Ultrasonic liquid level sensing system |
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