F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
F02P 17/00 (2006.01) F02P 3/02 (2006.01) F02P 17/12 (2006.01) G01M 15/00 (2006.01)
Patent
CA 2321510
An apparatus for measuring ignition charge signals produced by coils of coil- on-plug devices of an internal combustion engine. A signal detector comprises an insulating substrate having a first conductive planar layer on a first side and a second conductive planar layer on a second side. The first layer is coupled to a signal wire and the second layer is coupled to a ground wire. When the signal detector is held in close proximity to the coil of the coil-on-plug, ignition signals generated by the coil and passing to the plug are detected. The detected signals may be coupled to a signal analyzer for display and analysis. The amplitude of the signal that is output by the signal detector may be adjusted to different coils having different output signal strengths by modifying the ratio of the surface areas of the first layer and the second layer.
Bryant Robert R.
Fong Chee K.
Mcqueeney Kenneth A.
Normile James M.
Spencer Timothy J.
Robic
Snap-On Technologies Inc.
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