IT981593B - LIQUID DETECTOR ELEMENT - Google Patents

LIQUID DETECTOR ELEMENT

Info

Publication number
IT981593B
IT981593B IT2201173A IT2201173A IT981593B IT 981593 B IT981593 B IT 981593B IT 2201173 A IT2201173 A IT 2201173A IT 2201173 A IT2201173 A IT 2201173A IT 981593 B IT981593 B IT 981593B
Authority
IT
Italy
Prior art keywords
detector element
liquid detector
liquid
detector
Prior art date
Application number
IT2201173A
Other languages
Italian (it)
Original Assignee
Asahi Chemical Ind
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
Priority claimed from JP47103410A external-priority patent/JPS4960990A/ja
Priority claimed from JP65673A external-priority patent/JPS4988585A/ja
Application filed by Asahi Chemical Ind filed Critical Asahi Chemical Ind
Application granted granted Critical
Publication of IT981593B publication Critical patent/IT981593B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
    • 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
    • G01F23/223—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 using a melting or dissolving material as a part of alarm-means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/42—Switches operated by change of humidity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Level Indicators Using A Float (AREA)
IT2201173A 1972-04-01 1973-03-22 LIQUID DETECTOR ELEMENT IT981593B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3891672 1972-04-01
JP47103410A JPS4960990A (en) 1972-10-14 1972-10-14
JP65673A JPS4988585A (en) 1972-12-25 1972-12-25

Publications (1)

Publication Number Publication Date
IT981593B true IT981593B (en) 1974-10-10

Family

ID=27274546

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2201173A IT981593B (en) 1972-04-01 1973-03-22 LIQUID DETECTOR ELEMENT

Country Status (2)

Country Link
FR (1) FR2178950B1 (en)
IT (1) IT981593B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455294A1 (en) * 1979-04-27 1980-11-21 Inst Francais Du Petrole ELEMENTS SENSITIVE TO CERTAIN POLLUTANT ORGANIC PRODUCTS, PARTICULARLY HYDROCARBONS
JPS5849612B2 (en) * 1979-11-09 1983-11-05 日本鋼管株式会社 Method and device for measuring the position and shape of the molten zone in a blast furnace

Also Published As

Publication number Publication date
DE2316284B2 (en) 1976-12-16
FR2178950A1 (en) 1973-11-16
DE2365434B2 (en) 1976-04-22
FR2178950B1 (en) 1974-05-17
DE2365434A1 (en) 1975-01-02
DE2316284A1 (en) 1973-10-18
DE2365435B2 (en) 1977-02-10
DE2365435A1 (en) 1975-01-02

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