FR2316603A1 - Capacimetre utilisable en particulier comme humidimetre - Google Patents

Capacimetre utilisable en particulier comme humidimetre

Info

Publication number
FR2316603A1
FR2316603A1 FR7521196A FR7521196A FR2316603A1 FR 2316603 A1 FR2316603 A1 FR 2316603A1 FR 7521196 A FR7521196 A FR 7521196A FR 7521196 A FR7521196 A FR 7521196A FR 2316603 A1 FR2316603 A1 FR 2316603A1
Authority
FR
France
Prior art keywords
moisture content
meter
grain
effected
measurement
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
FR7521196A
Other languages
English (en)
Other versions
FR2316603B1 (fr
Inventor
Denis Bugnot
Patrick Cornille
Marc Haincaud
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.)
TRIPETTE ET RENAUD SA
Original Assignee
TRIPETTE ET RENAUD SA
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 TRIPETTE ET RENAUD SA filed Critical TRIPETTE ET RENAUD SA
Priority to FR7521196A priority Critical patent/FR2316603A1/fr
Priority to BE168171A priority patent/BE843239A/fr
Publication of FR2316603A1 publication Critical patent/FR2316603A1/fr
Application granted granted Critical
Publication of FR2316603B1 publication Critical patent/FR2316603B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/08—Measuring resistance by measuring both voltage and current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth 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)
FR7521196A 1975-07-02 1975-07-02 Capacimetre utilisable en particulier comme humidimetre Granted FR2316603A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7521196A FR2316603A1 (fr) 1975-07-02 1975-07-02 Capacimetre utilisable en particulier comme humidimetre
BE168171A BE843239A (fr) 1975-07-02 1976-06-22 Capacimetre utilisable en particulier comme humidimetre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7521196A FR2316603A1 (fr) 1975-07-02 1975-07-02 Capacimetre utilisable en particulier comme humidimetre

Publications (2)

Publication Number Publication Date
FR2316603A1 true FR2316603A1 (fr) 1977-01-28
FR2316603B1 FR2316603B1 (fr) 1977-12-16

Family

ID=9157573

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7521196A Granted FR2316603A1 (fr) 1975-07-02 1975-07-02 Capacimetre utilisable en particulier comme humidimetre

Country Status (2)

Country Link
BE (1) BE843239A (fr)
FR (1) FR2316603A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0392639A2 (fr) * 1989-04-13 1990-10-17 Rockwool/ Grodan B.V. Méthode et dispositif de mesure de la teneur en humidité d'un substrat de culture
EP0438103A2 (fr) * 1990-01-15 1991-07-24 Dieter Dr. Weiss Procédé et dispositif pour mesurer de grandeurs physiques

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0392639A2 (fr) * 1989-04-13 1990-10-17 Rockwool/ Grodan B.V. Méthode et dispositif de mesure de la teneur en humidité d'un substrat de culture
EP0392639A3 (fr) * 1989-04-13 1991-04-03 Rockwool/ Grodan B.V. Méthode et dispositif de mesure de la teneur en humidité d'un substrat de culture
EP0438103A2 (fr) * 1990-01-15 1991-07-24 Dieter Dr. Weiss Procédé et dispositif pour mesurer de grandeurs physiques
EP0438103A3 (en) * 1990-01-15 1992-05-06 Dieter Dr. Weiss Process and appliance for measuring physical sizes

Also Published As

Publication number Publication date
BE843239A (fr) 1976-10-18
FR2316603B1 (fr) 1977-12-16

Similar Documents

Publication Publication Date Title
US3085566A (en) Apparatus for measuring the electrical response of living tissue
US3766471A (en) Method and apparatus for determining moisture content of tobacco
US3284709A (en) Precision voltmeter using selectable series connected, digitally related resistors which are calibrated to read the value of input signal
US3034044A (en) Electrical bridge
FR2316603A1 (fr) Capacimetre utilisable en particulier comme humidimetre
GB1383062A (en) Corrosion ratemeter
GB622470A (en) Improvements in or relating to electric measuring instruments for measuring the moisture content of materials
US3054951A (en) Device for measuring the root mean square value of a slowly varying voltage
ES437252A1 (es) Procedimiento y dispositivo para determinar la humedad de materiales de diferente clase.
US3571706A (en) Voltage measuring apparatus employing feedback gain control to obtain a predetermined output and a feedback loop to readout the gain value
GB923892A (en) Improvements in or relating to ohmmeters
US3984773A (en) Pulse counting-rate meter
US2866948A (en) Test circuit for interconnected components
GB1073189A (en) Improvements in and relating to electrical measuring and like instruments
SU900217A1 (ru) Цифровой измеритель сопротивлени
SU459743A1 (ru) Измеритель комплексной диэлектрической проницаемости
JPS5769237A (en) Temperature and humidity sensing device
SU661439A1 (ru) Устройство дл контрол параметров линейных интегральных микросхем
JPS5531913A (en) Moisture measuring circuit
SU771487A1 (ru) Вакуумметр
SU752189A1 (ru) Устройство дл измерени сопротивлени
SU777604A1 (ru) Устройство дл контрол параметров линейных интегральных микросхем
SU112092A1 (ru) Способ измерени емкости конденсатора
GB887587A (en) Improvements relating to electrical resistance measuring instruments
SU636559A1 (ru) Цифоровой интегрирующий измеритель отношени сопротивлени

Legal Events

Date Code Title Description
ST Notification of lapse