EP 1963778 A1 20080903 - POSITION AND MOTION CAPACITIVE SENSOR AND DEDICATED CIRCUIT FOR DETERMINING X, Y, Z COORDINATES OF THE TRAJECTORY OF A CHARACTERISTIC POINT
Title (en)
POSITION AND MOTION CAPACITIVE SENSOR AND DEDICATED CIRCUIT FOR DETERMINING X, Y, Z COORDINATES OF THE TRAJECTORY OF A CHARACTERISTIC POINT
Title (de)
POSITIONS- UND BEWEGUNGSKAPAZITIVER SENSOR UND EIGENE SCHALTUNG ZUR BESTIMMUNG VON X-, Y-, Z-KOORDINATEN DER TRAJEKTORIE EINES CHARAKTERISTISCHEN PUNKTS
Title (fr)
SENSEUR CAPACITIF DE POSITION ET DEPLACEMENT ET CIRCUIT SPECIALISE DANS LA DETERMINATION DES COORDONNEES X, Y, Z ET DE LA TRAJECTOIRE D'UN POINT CARACTERISTIQUE
Publication
Application
Priority
- RO 2006000024 W 20061218
- RO 200501051 A 20051216
Abstract (en)
[origin: WO2007069929A1] The invention concerns a three-dimensional intelligent position and motion capacitive sensor, for determining x, y, z coordinates and the trajectory of a characteristic point pertaining to an object located inside the sensor. The technical problem solved by the present invention consists in determining the coordinates and the trajectory of a characteristic point of an object following modification of certain differential capacitances over the three axes, caused by the presence of the object in a certain position inside the sensor. The inventive intelligent sensor consists of a differential capacitive sensor (A) consisting of several fixed armatures (2, 3, 4, 5 and 6) arranged on the surface of a prismatic body, so as to define a first rectangular differential capacitance C<SUB>x</SUB> formed by the armatures (2, 4 and 5) between the first armature (2) and the second armature (4) being a right angle, and between the second armature (4) and the third armature (5) being also a right angle, a second rectangular capacitance C<SUB>y</SUB>being defined by the armatures (3, 4 and 6) in the same way as the capacitance C<SUB>x</SUB>, a third simple rectangular capacitance C<SUB>z</SUB> being defined by two armatures (3 and 4) likewise arranged at an angle of about 90°. The differential capacitive sensor (A) is connected to a block (B) for converting the values of the capacitances into digital dimensions, the block (B) being in turn connected to a block (C) for computing data which computes the coordinates x, y, and z of the characteristic point P(x,y,z) pertaining to an object introduced in the inner space of the differential capacitive sensor (A) and transmits same to a terminal block (D).
IPC 8 full level
G01B 7/004 (2006.01); A61B 5/11 (2006.01); B25J 3/00 (2006.01); G06F 3/03 (2006.01)
CPC (source: EP US)
G01B 7/004 (2013.01 - EP US); G06F 3/0346 (2013.01 - EP); G06F 3/044 (2013.01 - EP US); A61B 5/1101 (2013.01 - EP)
Citation (search report)
See references of WO 2007069929A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
RO 2006000024 W 20061218; EP 06843940 A 20061218