US 7,513,143 B2
System for electro-statically indicating movement of tread
Terje Kvisteroey, Horten (Germany); and Dirk Hammerschmidt, Villach (Germany)
Assigned to Infineon Technologies AG, Neubiberg (Germany)
Filed on Sep. 04, 2007, as Appl. No. 11/849,603.
Prior Publication US 2009/0056433 A1, Mar. 05, 2009
Int. Cl. G01M 17/02 (2006.01)
U.S. Cl. 73—146 24 Claims
OG exemplary drawing
 
1. A system, comprising:
a first electrode embedded in tread of a tire and configured for electro-statically indicating movement of the tread, wherein the first electrode includes an electret material having an electrostatic charge.