Abstract: A radar system for vehicle tire testing and analysis may be mounted within the casing of a vehicle tire to measure the location of the inner casing of the tire (tire deformation) as well as the location of the tire/soil interface (tire footprint). The radar system of the present invention may also be used to determine soil characteristics by analyzing the reflected signals. The present invention may have particular use in testing tires for use with on- or off-road surfaces. However, the present invention may also be used to monitor tire deformation, traction, footprint, and soil characteristics.

Abstract: An informational/positional guide, which is disposable in an aircraft instrumentation interface, used with at least one mechanical guide key configured to guide interface engagement, and the guide key having an orientation specific to a particular type of aircraft equipment configuration, the guide is provided with a key engagement member. The key engagement member is formed to engage the guide key and is disposable in a variety of angular orientations to facilitate engagement with the guide key. The key engagement member is further provided with an aircraft equipment configuration sensor for identifying the aircraft equipment configuration type in response to sensed orientation of the key engagement member and for generating an electronic signal in response to the identification of the orientation of the key engagement member.