Eldec Corporation

Jeffrey J Green

Bernard J Burreson

Mark Finefrock

Jon F Beutler

Gregory A Kromholtz

Jonathan Lumb

Walter A Van Schalkwijk

Bradley Smith

Delbert F Flagg, Jr

Cold check gas pressure readings for the landing gear tires of an aircraft are obtained automatically during normal operation of the aircraft. The automated system (S, e.g.) includes monitoring aircraft data to determine that the aircraft is at rest on the ground (), and electronically monitoring the tire pressure (). When predetermined cold check conditions have been met; the tire pressure values are automatically stored with a timestamp () for later access by a user.

Tire pressure cold check system

Disclosed is a method and system for unobtrusively measuring physical properties in electrochemical processes occurring in a predefined volume, such as the state of charge in an electrochemical battery. The invention provides for a coil (22) or (42) positioned relative to the predefined volume to minimize the reluctance path between the coil and the electrochemical process, with the winding axis of the coil generally transverse to a surface bounding the predefined volume. In this position, an alternating current is applied to the coil to generate an oscillatory magnetic field. Preferably, the coil includes a core (24) or a backing plate (46) for concentrating the magnetic field in a direction towards the process in the predefined volume. The physical properties are determined based upon a measurement of the electrical complex impedance of the coil, and data correlating the physical properties of the process with the electrical complex impedance of the coil.

Method and system for unobtrusively measuring physical properties in

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Lake Stevens, WA, United States of America

Jeffrey J Green