JPS574519A - Level measuring device - Google Patents

Level measuring device

Info

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
Application number
JP7768180A
Other languages
Japanese (ja)
Inventor
Shigeru Hirokubo
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.)
FERRO KOGYO
Fueroo Kogyo Kk
Original Assignee
FERRO KOGYO
Fueroo Kogyo Kk
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 FERRO KOGYO, Fueroo Kogyo Kk filed Critical FERRO KOGYO
Priority to JP7768180A priority Critical patent/JPS574519A/en
Publication of JPS574519A publication Critical patent/JPS574519A/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
    • G01F23/26—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.
JP7768180A 1980-06-11 1980-06-11 Level measuring device Pending JPS574519A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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