EP 1399714 A2 20040324 - CAPACITIVE MEASURING SYSTEM
Title (en)
CAPACITIVE MEASURING SYSTEM
Title (de)
KAPAZITIVES MESSSYTEM
Title (fr)
SYSTEME DE MESURE CAPACITIF
Publication
Application
Priority
- FR 0202234 W 20020627
- FR 0108529 A 20010628
Abstract (en)
[origin: FR2826723A1] The invention relates to a measuring device comprising at least one measuring probe (10), means for sequentially applying a controlled supply voltage between the measuring probe (10) and a reference element, and means for integrating accumulated electric charges on the measuring probe (10), characterized in that said device also comprises at least one auxiliary measuring probe (100) which is also sequentially linked to controlled electric supply means and to charge integrating means, said auxiliary measuring probe (100) having a capacity, in relation to a potential detection zone, which is different from the main measuring probe (10), whereby comparative utilization of signals respectively emitted by the two measuring probes (10,100) enables the influence of the main measuring probe to be determined.
IPC 1-7
IPC 8 full level
G01B 7/00 (2006.01); B60R 21/16 (2006.01); G01D 5/24 (2006.01)
CPC (source: EP US)
G01D 5/24 (2013.01 - EP US)
Citation (search report)
See references of WO 03002949A2
Citation (examination)
US 4451780 A 19840529 - OGASAWARA HIROOMI [JP]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
FR 2826723 A1 20030103; FR 2826723 B1 20040130; CA 2451961 A1 20030109; EP 1399714 A2 20040324; JP 2004530907 A 20041007; JP 4307248 B2 20090805; US 2005068043 A1 20050331; US 7098673 B2 20060829; WO 03002949 A2 20030109; WO 03002949 A3 20030320
DOCDB simple family (application)
FR 0108529 A 20010628; CA 2451961 A 20020627; EP 02764932 A 20020627; FR 0202234 W 20020627; JP 2003508887 A 20020627; US 48261104 A 20040712