Abstract: A system for detecting aeration in a lubricant includes a sensor having a pair of spaced apart concentric rings forming a first capacitor through which the lubricant flows and a capacitor segment forming a second capacitor with the outer ring. The capacitors are connected in a balanced bridge circuit and the second capacitor is constructed to remove gas entrapped in the lubricant present in the second capacitor so that the bridge becomes unbalanced indicating gas entrapped in the lubricant flowing through the first capacitor.

Abstract: A system for detecting aeration in a lubricant includes a sensor having a pair of spaced apart concentric rings forming a first capacitor through which the lubricant flows and a capacitor segment forming a second capacitor with the outer ring. The capacitors are connected in a balanced bridge circuit and the second capacitor is constructed to remove gas entrapped in the lubricant present in the second capacitor so that the bridge becomes unbalanced indicating gas entrapped in the lubricant flowing through the first capacitor.

Abstract: An automotive vehicle antenna comprises an outer cover having a cross section elongated in the direction of travel of the vehicle. The cover, which includes an enlarged section covering a loading coil, strengthens the antenna against bending due to wind force and presents a low wind resistance profile. The antenna may be window mounted and is provided with a conductive base engaging a conductive pivot support. The antenna may be pivoted to a flattened position to avoid damage by objects such as may be encountered in an automatic carwash. The antenna may be adjusted to a precise upright position for optimum reception and is adapted to return to a previously adjusted position when it is returned to the upright position from a flattened position.