Igen International, Inc.

Other

Automotive Systems Laboratory, Inc.

David B Talley

Jonathan K Leland

Leonard Steven Cech

Edward J Gillis

Michael R Sewell

Gary F Blackburn

Stephanie A Hayes

A side impact crash is sensed from the motion of an edge wall of a vehicle door at a location distal to the door hinge in a direction of swing of the door. The rotation of the door about the hinge responsive to a side impact of the door magnifies the measured motion for a point of impact between the hinge and the sensing location. The motion may comprise acceleration, velocity or a relative motion such as relative velocity. The activation of safety restraint system is responsive to the sensed motion. In another embodiment, a side impact crash is sensed with a magnetic circuit comprising at least one coil and at least one permanent magnet, wherein an axis between the north and south poles of the magnet is substantially perpendicular to an axis about which at least one coil is wound. The relative motion is in a direction substantially perpendicular to the axis about which at least one coil is wound.

System and method for sensing vehicle door edge movement

A method and apparatus for measuring electrochemiluminescence from a sample composition are described wherein magnetically responsive electrochemiluminescent active species are captured on the electrode with the aid of a capture magnet having a configuration such that the magnetic flux lines (or the magnetic field gradient) of at least one magnetic field source therein are compressed and/or dispersed. This capture magnet improves the distribution of the magnetically responsive electrochemiluminescent active species on the electrode surface and reduces interference with the photomultiplier tube, thereby enhancing the ECL signal and improving sensitivity. The improved capture and distribution also allows for shorter assay times.

Magnetic particle based electrochemiluminescent detection apparatus and

An electrode can be derivitized by contacting it with a derivitizing solution to make it more sensitive to a desired analyte signal as opposed to interfering signals in an assay. Particularly, in an electrochemiluminescence (ECL) immunoassay the working electrode can be derivitized to be more sensitive to desired analyte signals, as opposed to interfering non-bound conjugate or serum matrix signals.

Method for derivitizing electrodes and assay methods using such

In accordance with a preferred embodiment, a vehicle crash discrimination system (10) comprises a plurality of coil sensors (18) permanently mounted to a vehicle pillar, and a magnet 20 either mounted to a door (14) edge surface juxtaposed to the coils, or to the pillar if a suitable ferromagnetic flux collector is mounted on the door edge. The shape, size and spacing of the coils is predetermined to provide output signals in the coils responsive to the change in the magnetic field caused by movement of the door surface. The change in magnetic field is analyzed to indicate a vehicle crash.

The invention is a method for conducting an electrochemiluminescent assay that includes contacting a sample containing an analyte of interest with a first electrical waveform, followed by contacting the sample with a second electrical waveform that has been modulated in an amount derived from a pre-determined gain extension factor.

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Olney, MD, United States of America

David B Talley