公开(公告)号：DE112004000353T5

公开(公告)日：2006-01-26

申请号：DE112004000353

申请日：2004-02-11

Applicant: VTI TECHNOLOGIES OY VANTAA

Inventor： KUISMA HEIKKI ,  LAHDENPERAE JUHA ,  MUTIKAINEN RISTO

IPC: B81B3/00 ,  B81B7/00 ,  B81C1/00 ,  G01P15/08 ,  G01P15/125

Abstract: The invention relates to measuring devices used for the measuring of acceleration, and specifically to capacitive acceleration sensors. The capacitive acceleration sensor according to the present invention comprises a pair of electrodes composed of a movable electrode ( 4 ) and a stationary electrode ( 5 ), and, related to the pair of electrodes, an isolator protrusion having a special coating. The invention provides an improved, more durable sensor structure, which withstands wear caused by overload situations better than earlier structures.

公开(公告)号：DE10392273T5

公开(公告)日：2005-03-10

申请号：DE10392273

申请日：2003-02-10

Applicant: VTI TECHNOLOGIES OY VANTAA

Inventor： KUISMA HEIKKI ,  LAHDENPERAE JUHA ,  MUTIKAINEN RISTO

IPC: G01L9/00 ,  G01L19/04 ,  G01P15/08 ,  G01P15/125 ,  G01L9/12

Abstract: A method of manufacturing a sensor including forming an insulating layer on top of a conductive substrate, and forming a conducting electrode on top of the insulating layer. Further, the insulating layer is formed to include support areas formed at edges of the conducting electrode and a partial area formed under the conducting electrode, and a thickness (d 2 ) of the partial area of the insulating layer is less than a thickness (d 1 ) of the support areas of the insulating area.