JPS5614938A - Bubble and liquid level detecting system - Google Patents

Bubble and liquid level detecting system

Info

Publication number
JPS5614938A
JPS5614938A JP9094579A JP9094579A JPS5614938A JP S5614938 A JPS5614938 A JP S5614938A JP 9094579 A JP9094579 A JP 9094579A JP 9094579 A JP9094579 A JP 9094579A JP S5614938 A JPS5614938 A JP S5614938A
Authority
JP
Japan
Prior art keywords
electrodes
probe
bubble
resistance
electrostatic capacity
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.)
Granted
Application number
JP9094579A
Other languages
Japanese (ja)
Other versions
JPH0133777B2 (en
Inventor
Kunishiro Mori
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP9094579A priority Critical patent/JPS5614938A/en
Publication of JPS5614938A publication Critical patent/JPS5614938A/en
Publication of JPH0133777B2 publication Critical patent/JPH0133777B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE: To improve the bubble and liquid level sensing capacity of the detecting system therefor by applying rectangular waves to probe electrodes to extract simultaneously as detecting signals a signal representative of variation in resistance between the electrodes and signal representative of variation in an electrostatic capacity.
CONSTITUTION: A rectangular wave power source 9 is connected between electrodes 1, 3 of the bubble detecting probe 4, and an amplifier 10 is connected between the probe 4 and power source 9. In this arrangement, an equivalent circuit between the electrodes 1, 3 of the probe 4 consists of a parallel circuit of a volumic resistance R based on a specific resistance of the liquid around the electrodes 1, 3, and an electrostatic capacity C determined by a permittivity of an insulator 2 for insulating the electrodes 1, 3 against each other and a permittivity of the liquid around the electrodes 1, 3. When bubbles occur after rectangular waves have been applied between the electrodes 1, 3, the resistance R and electrostatic capacity C are varied, so that the wave-form inputted into the amplifier 10 is varied. Therefore, the generation of bubbles can be detected at a high accuracy.
COPYRIGHT: (C)1981,JPO&Japio
JP9094579A 1979-07-19 1979-07-19 Bubble and liquid level detecting system Granted JPS5614938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9094579A JPS5614938A (en) 1979-07-19 1979-07-19 Bubble and liquid level detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9094579A JPS5614938A (en) 1979-07-19 1979-07-19 Bubble and liquid level detecting system

Publications (2)

Publication Number Publication Date
JPS5614938A true JPS5614938A (en) 1981-02-13
JPH0133777B2 JPH0133777B2 (en) 1989-07-14

Family

ID=14012591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9094579A Granted JPS5614938A (en) 1979-07-19 1979-07-19 Bubble and liquid level detecting system

Country Status (1)

Country Link
JP (1) JPS5614938A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100467335B1 (en) * 2002-11-22 2005-01-24 지아이 주식회사 Foaming action detector using fuzzy multi-step contact method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5445196A (en) * 1977-09-16 1979-04-10 Doryokuro Kakunenryo Signal treating method of void meter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5445196A (en) * 1977-09-16 1979-04-10 Doryokuro Kakunenryo Signal treating method of void meter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100467335B1 (en) * 2002-11-22 2005-01-24 지아이 주식회사 Foaming action detector using fuzzy multi-step contact method

Also Published As

Publication number Publication date
JPH0133777B2 (en) 1989-07-14

Similar Documents

Publication Publication Date Title
DE3381019D1 (en) MEASURING AN ELECTRICAL SIGNAL WITH PICOSECOND RESOLUTION.
IE832228L (en) Detector of ion concentration in a liquid
ES445837A1 (en) Moisture indicating apparatus
JPS52135797A (en) Apparatus for detecting phase change of liquid
JPS51143386A (en) Magnetic flaw detector with water spray
GB2022266A (en) Method and apparatus for determining the level of an electrically conducting liquid
JPS5614938A (en) Bubble and liquid level detecting system
JPS5336268A (en) Level detecting circuit of liquid
JPS5216178A (en) Airtightness testing device
JPS5437582A (en) Measuring method for capacity of three-terminal semiconductor element
JPS5368290A (en) Insulation resistance measuring apparatus of ground system
JPS5436984A (en) Pressure measuring apparatus
JPS5649962A (en) Measuring method for dielectric loss tangent
JPS5269393A (en) Bacteria inspecting device
JPS51140681A (en) Leakage detection device
JPS5663270A (en) Insulation resistance measuring method
JPS5222998A (en) Liquid metal leakage detecting device
JPS5441783A (en) Method and apparatus for detection of ultrasonic wave receiving signals
JPS5397462A (en) Thrust amount measuring device of rolling horizontal rolls
JPS53138365A (en) Gap measuring device
JPS5425775A (en) Easy measuring method of dielectric characteristics
JPS55149848A (en) Measuring instrument of induction system for surface electric potential
JPS53132244A (en) Test and control unit for extendable microprogram
JPS5363083A (en) Detecting circuit for minute changing quantity
JPS5412840A (en) Measuring method for surface potential of electrophotographic photoreceptor by time series