EP 1520160 A1 20050406 - FORCE SENSOR
Title (en)
FORCE SENSOR
Title (de)
KRAFTSENSOR
Title (fr)
CAPTEUR DE FORCE
Publication
Application
Priority
- DE 0301013 W 20030327
- DE 10229020 A 20020628
Abstract (en)
[origin: WO2004003501A1] The invention relates to a force sensor, especially for the detection of forces exerted on a vehicle seat, comprising a force measuring cell (1) which is provided with a Hall element. The force measuring cell (1) contains at least one flexion bar (2,3), which based on the effect of the force which is to be detected, influences the magnetic field in the region of a sensor element (6), which is sensitive to magnetic fields, of the measuring cell (1). Detection occurs with the aid of the Hall element (6) which is maintained on the at least one flexion bar (2,3). Said Hall element can be deflected by the force exerted on the flexion bars (2,3) in the field of a permanent magnet (4) which is arranged in a relatively fixed manner. A magnetic diagnostic field can be produced in the area of the Hall element (6), wherein the field lines thereof are arranged on the plane of the sensor element without influencing the measuring field.
IPC 1-7
IPC 8 full level
G01L 1/04 (2006.01); B60N 2/00 (2006.01); G01G 19/414 (2006.01); G01L 1/14 (2006.01); G01L 25/00 (2006.01); B60R 21/01 (2006.01); B60R 21/015 (2006.01)
CPC (source: EP US)
B60N 2/002 (2013.01 - US); B60N 2/0031 (2023.08 - EP); B60R 21/01516 (2014.10 - EP US); G01G 19/4142 (2013.01 - EP US); G01L 1/14 (2013.01 - EP US); B60N 2210/40 (2023.08 - EP)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
WO 2004003501 A1 20040108; DE 10229020 A1 20040122; EP 1520160 A1 20050406; JP 2005531758 A 20051020; US 2004255687 A1 20041223; US 7073391 B2 20060711
DOCDB simple family (application)
DE 0301013 W 20030327; DE 10229020 A 20020628; EP 03718638 A 20030327; JP 2004516434 A 20030327; US 49397504 A 20040426