CH508880A - Appareil pour détecter les vapeurs de liquides polaires, et procédé pour la fabrication de l'appareil - Google Patents

Appareil pour détecter les vapeurs de liquides polaires, et procédé pour la fabrication de l'appareil

Info

Publication number
CH508880A
CH508880A CH274569A CH274569A CH508880A CH 508880 A CH508880 A CH 508880A CH 274569 A CH274569 A CH 274569A CH 274569 A CH274569 A CH 274569A CH 508880 A CH508880 A CH 508880A
Authority
CH
Switzerland
Prior art keywords
manufacturing
polar liquids
detecting vapors
vapors
detecting
Prior art date
Application number
CH274569A
Other languages
English (en)
Inventor
Ferencz Pulvari Charles
Florenz Urban Stephen
Original Assignee
Nat Lead Co
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 Nat Lead Co filed Critical Nat Lead Co
Publication of CH508880A publication Critical patent/CH508880A/fr

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12Investigating 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
    • G01N27/121Investigating 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223Investigating 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
    • G01N27/225Investigating 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/025Electrets, i.e. having a permanently-polarised dielectric having an inorganic dielectric

Landscapes

  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
CH274569A 1968-03-01 1969-02-24 Appareil pour détecter les vapeurs de liquides polaires, et procédé pour la fabrication de l'appareil CH508880A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70964268A 1968-03-01 1968-03-01

Publications (1)

Publication Number Publication Date
CH508880A true CH508880A (fr) 1971-06-15

Family

ID=24850741

Family Applications (1)

Application Number Title Priority Date Filing Date
CH274569A CH508880A (fr) 1968-03-01 1969-02-24 Appareil pour détecter les vapeurs de liquides polaires, et procédé pour la fabrication de l'appareil

Country Status (7)

Country Link
BE (1) BE728659A (fr)
CH (1) CH508880A (fr)
DE (2) DE1910287A1 (fr)
FR (1) FR2003030A1 (fr)
GB (1) GB1243095A (fr)
LU (1) LU58107A1 (fr)
NL (1) NL6903203A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2408218C3 (de) * 1974-02-21 1983-11-03 Ehlen, Karl Josef, Dr., 5000 Köln Schaltungsanordnung zum Nachweis von Gasen
DE3024523A1 (de) * 1980-06-28 1982-01-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Als elektrischer kondensator ausgebildeter feuchtigkeitssensor
GB8326982D0 (en) * 1983-10-08 1983-11-09 Plessey Co Plc Atmospheric sensor
GB2181257B (en) * 1983-10-08 1988-06-29 Plessey Co Plc A probe
CN1059962C (zh) * 1998-05-26 2000-12-27 华南理工大学 一种可集成多功能湿光敏元件及其制造方法

Also Published As

Publication number Publication date
GB1243095A (en) 1971-08-18
BE728659A (fr) 1969-08-19
DE6908118U (de) 1969-12-11
FR2003030A1 (fr) 1969-11-07
DE1910287A1 (de) 1970-04-09
LU58107A1 (fr) 1969-06-03
NL6903203A (fr) 1969-09-03

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Legal Events

Date Code Title Description
PL Patent ceased