Abstract: A disk probe velocimeter is formed by multiple orthogonal disks fitted with pressure transducers positioned to measure dynamic pressure differences between the center of one disk face and the center of the other face of each disk. The velocimeter can measure reasonably accurately three components of velocity where the approximate direction of the flow is not known. Where the dominant velocity component is known, the velocimeter may be combined with a Pitot probe to form a compact anemometer.

Abstract: A torque sensing system is provided in a coupling connecting a drive and driven shaft by tension members that transmit torque from one shaft to the other through tension in the tension members at least one of which is provided with a sensor to sense the tensile stress in one of the members and to provide a signal indicating the tension (torque) applied through the tension members. If desired, an axially extending column element may be positioned between the two shafts to absorb axial thrust of between the shafts and a second sensor sensing the stress in the column may be used to determine thrust substantially independent of torque. The system may be used to detect off-axis loads.