Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
  • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
  • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
  • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
  • G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
  • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
  • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
  • G01N27/225—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity by using hygroscopic materials
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
  • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
  • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
  • H01G7/025—Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric

Landscapes

• Chemical & Material Sciences (AREA)
• Power Engineering (AREA)
• Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• Analytical Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• Physics & Mathematics (AREA)
• Pathology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Biochemistry (AREA)
• General Health & Medical Sciences (AREA)
• General Physics & Mathematics (AREA)
• Immunology (AREA)
• Inorganic Chemistry (AREA)
• Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
• Inorganic Compounds Of Heavy Metals (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=24850741

Family Applications (1)

Country Status (7)

Families Citing this family (5)

• 1969
  • 1969-02-19 BE BE728659D patent/BE728659A/xx unknown
  • 1969-02-24 CH CH274569A patent/CH508880A/fr not_active IP Right Cessation
  • 1969-02-27 GB GB1051769A patent/GB1243095A/en not_active Expired
  • 1969-02-27 LU LU58107D patent/LU58107A1/xx unknown
  • 1969-02-28 NL NL6903203A patent/NL6903203A/xx unknown
  • 1969-02-28 FR FR6905339A patent/FR2003030A1/fr not_active Withdrawn
  • 1969-02-28 DE DE19696908118 patent/DE6908118U/de not_active Expired
  • 1969-02-28 DE DE19691910287 patent/DE1910287A1/de active Pending

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