FI900592A - Maetkoppling foer smao kapasitanser. - Google Patents

Maetkoppling foer smao kapasitanser.

Info

Publication number: FI900592A
Authority: FI; Finland
Prior art keywords: maetkoppling; kapasitanser; smao; foer; smao kapasitanser
Prior art date: 1990-02-07

Application number

FI900592A

Other languages

English (en)

Other versions

FI84666B (fi

FI900592A0 (fi

FI84666C (fi

Inventor

Jorma Ponkala

Original Assignee

Vaisala Oy

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.)

1990-02-07

Filing date

1990-02-07

Publication date

1991-08-08

1990-02-07 Application filed by Vaisala Oy filed Critical Vaisala Oy

1990-02-07 Publication of FI900592A0 publication Critical patent/FI900592A0/fi

1990-02-07 Priority to FI900592A priority Critical patent/FI84666C/fi

1991-01-21 Priority to AU69491/91A priority patent/AU6949191A/en

1991-01-23 Priority to ZA91506A priority patent/ZA91506B/xx

1991-01-29 Priority to GB9101869A priority patent/GB2242279A/en

1991-02-05 Priority to DE4103433A priority patent/DE4103433A1/de

1991-02-06 Priority to BR919100486A priority patent/BR9100486A/pt

1991-02-06 Priority to ITMI910300A priority patent/IT1245137B/it

1991-02-07 Priority to CA002035909A priority patent/CA2035909A1/en

1991-02-07 Priority to FR9101380A priority patent/FR2657963A1/fr

1991-08-08 Publication of FI900592A publication Critical patent/FI900592A/fi

1991-09-13 Publication of FI84666B publication Critical patent/FI84666B/fi

1991-12-27 Application granted granted Critical

1991-12-27 Publication of FI84666C publication Critical patent/FI84666C/fi

Classifications

- 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)
Measurement Of Resistance Or Impedance (AREA)

FI900592A 1990-02-07 1990-02-07 Maetkoppling foer smao kapasitanser. FI84666C (fi)

Priority Applications (9)

Application Number	Priority Date	Filing Date	Title
FI900592A FI84666C (fi)	1990-02-07	1990-02-07	Maetkoppling foer smao kapasitanser.
AU69491/91A AU6949191A (en)	1990-02-07	1991-01-21	Measurement coupling for low capacitances
ZA91506A ZA91506B (en)	1990-02-07	1991-01-23	Measurement coupling for low capacitances
GB9101869A GB2242279A (en)	1990-02-07	1991-01-29	Measuring low capacitances
DE4103433A DE4103433A1 (de)	1990-02-07	1991-02-05	Messschaltung fuer kleine kapazitaeten
BR919100486A BR9100486A (pt)	1990-02-07	1991-02-06	Acoplamento para medicao de capacitancias baixas
ITMI910300A IT1245137B (it)	1990-02-07	1991-02-06	Accoppiamento per la misura di basse capacita'
CA002035909A CA2035909A1 (en)	1990-02-07	1991-02-07	Measurement coupling for low capacitances
FR9101380A FR2657963A1 (fr)	1990-02-07	1991-02-07	Circuit de mesure pour de faibles capacites.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI900592		1990-02-07
FI900592A FI84666C (fi)	1990-02-07	1990-02-07	Maetkoppling foer smao kapasitanser.

Publications (4)

Publication Number	Publication Date
FI900592A0 FI900592A0 (fi)	1990-02-07
FI900592A true FI900592A (fi)	1991-08-08
FI84666B FI84666B (fi)	1991-09-13
FI84666C FI84666C (fi)	1991-12-27

Family

ID=8529843

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI900592A FI84666C (fi)	1990-02-07	1990-02-07	Maetkoppling foer smao kapasitanser.

Country Status (9)

Country	Link
AU (1)	AU6949191A (fi)
BR (1)	BR9100486A (fi)
CA (1)	CA2035909A1 (fi)
DE (1)	DE4103433A1 (fi)
FI (1)	FI84666C (fi)
FR (1)	FR2657963A1 (fi)
GB (1)	GB2242279A (fi)
IT (1)	IT1245137B (fi)
ZA (1)	ZA91506B (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19513022C1 (de) *	1995-04-06	1996-08-14	Siemens Ag	Schaltungsanordnung und Verfahren zur Bestimmung von Kapazitätsdifferenzen
DE19625666C1 (de) *	1996-06-26	1998-01-15	Siemens Ag	Ausleseschaftung und kapazitiv messender Senser
DE102004006020A1 (de)	2004-02-06	2005-08-25	E + E Elektronik Ges.M.B.H.	Schaltungsanordnung zur kapazitiven Feuchtemessung und Verfahren zum Betrieb derselben
US8030949B2 (en) *	2008-10-31	2011-10-04	Testo Ag	Measurement method for determining moisture content
CN101738422B (zh) *	2009-12-23	2012-09-05	北京宝力马传感技术有限公司	一种湿度测量装置及方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3886447A (en) *	1972-05-17	1975-05-27	Iwatsu Electric Co Ltd	Capacitance-voltage converter
GB2058364B (en) *	1979-09-01	1983-03-23	Ferranti Ltd	Capacitance measuring apparatus
US4794320A (en) *	1987-08-10	1988-12-27	Moore Products Co.	Multi-frequency capacitance sensor

1990
- 1990-02-07 FI FI900592A patent/FI84666C/fi not_active IP Right Cessation
1991
- 1991-01-21 AU AU69491/91A patent/AU6949191A/en not_active Abandoned
- 1991-01-23 ZA ZA91506A patent/ZA91506B/xx unknown
- 1991-01-29 GB GB9101869A patent/GB2242279A/en not_active Withdrawn
- 1991-02-05 DE DE4103433A patent/DE4103433A1/de not_active Ceased
- 1991-02-06 BR BR919100486A patent/BR9100486A/pt not_active Application Discontinuation
- 1991-02-06 IT ITMI910300A patent/IT1245137B/it active IP Right Grant
- 1991-02-07 CA CA002035909A patent/CA2035909A1/en not_active Abandoned
- 1991-02-07 FR FR9101380A patent/FR2657963A1/fr active Pending

Also Published As

Publication number	Publication date
ITMI910300A1 (it)	1992-08-06
GB9101869D0 (en)	1991-03-13
FI84666B (fi)	1991-09-13
FI900592A0 (fi)	1990-02-07
GB2242279A (en)	1991-09-25
CA2035909A1 (en)	1991-08-08
IT1245137B (it)	1994-09-13
ITMI910300A0 (it)	1991-02-06
BR9100486A (pt)	1991-10-29
ZA91506B (en)	1991-10-30
DE4103433A1 (de)	1991-08-08
FR2657963A1 (fr)	1991-08-09
FI84666C (fi)	1991-12-27
AU6949191A (en)	1991-08-08

Publication	Publication Date	Title
FI902264A (fi)	1991-11-05	Stoedanordning foer helix-resonator.
FI910830A (fi)	1991-08-22	Dubbelviraformare.
FI901724A (fi)	1991-10-06	Roekdykares synanordning.
FI903074A0 (fi)	1990-06-19	Husbyggnadsfoerfarande.
FI912017A (fi)	1991-10-28	Katalytkompositioner.
FI903284A0 (fi)	1990-06-28	Vertikalborrstaong.
FI900592A0 (fi)	1990-02-07	Maetkoppling foer smao kapasitanser.
FI901742A (fi)	1991-10-07	Anordning foer ryggvaord.
FI913335A0 (fi)	1991-07-10	Underlag.
NO904126D0 (no)	1990-09-21	Sjoevanncelle.
NO912365D0 (no)	1991-06-18	Kantfoelgeorgan.
DE69104797D1 (de)	1994-12-01	2-Substituierte-1-Hydroxyindole.
FI901531A0 (fi)	1990-03-27	Vaermeaotervinningssystem.
FI900394A (fi)	1991-07-26	Foerfarande foer maetning av utomordentligt smao optiska foerluster.
FI903376A0 (fi)	1990-07-04	Massageapparat.
FI901690A0 (fi)	1990-04-04	Saenkroeresystem.
FI911977A0 (fi)	1991-04-24	Saoglinje foer smao virke.
FI912461A0 (fi)	1991-05-21	Stabiliserade vattenhaltiga formulationer av smao peptider.
FI903547A0 (fi)	1990-07-13	Beklaedd sandlaoda/lekplats.
FI901783A (fi)	1991-10-10	Kontrollsystem.
NO900490D0 (no)	1990-02-02	Soekeinnretning.
NO902120D0 (no)	1990-05-11	Avloepsledningssystem.
FI903527A0 (fi)	1990-07-12	Kombisaomaskin.
NO903481D0 (no)	1990-08-08	Soeppelforbrenningsovn.
NO904353D0 (no)	1990-10-08	Lotto-sjablong.

Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: VAISALA OY