Abstract: A sensor housing is provided that is configured to be mounted to a roof of a vehicle. The sensor housing includes a frame defining a plurality of cavities and a plurality of windows opening into respective cavities. The sensor housing also includes a plurality of sensors, at least some of which are disposed within the respective cavities defined by the frame. The sensors disposed within the respective cavities are oriented relative to the frame such that fields of view of the sensors that are disposed within the respective cavities defined by the frame are directed through the windows that open into the respective cavities. At least one of the plurality of sensors may include a camera mounted to the frame so as to be exterior to the vehicle and oriented such that a field of view of the camera is directed into a cabin of the vehicle.

Abstract: An electromagnetic coil with improved insulation properties at high temperatures. A bobbin is insulated by a thin ceramic composite layer that is produced by winding a glass or ceramic fiber over the support structure and impregnating it with a pre-ceramic polymer. The pre-ceramic polymer is then modified to form a ceramic SiO2 matrix around the fibrous layer. The ceramic matrix secures the glass or ceramic fibers in place and produces a dense layer. A ceramic coated magnet wire is then wound around the insulated support structure. The magnet wire is a conductor that is spiral-wrapped with a glass fiber impregnated with a pre-ceramic polymer.

Abstract: An electromagnetic coil with improved insulation properties at high temperatures. A bobbin is insulated by a thin ceramic composite layer that is produced by winding a glass or ceramic fiber over the support structure and impregnating it with a pre-ceramic polymer. The pre-ceramic polymer is then modified to form a ceramic SiO2 matrix around the fibrous layer. The ceramic matrix secures the glass or ceramic fibers in place and produces a dense layer. A ceramic coated magnet wire is then wound around the insulated support structure. The magnet wire is a conductor that is spiral-wrapped with a glass fiber impregnated with a pre-ceramic polymer.