Abstract: A coil arrangement has a first cylindrical coil having a first winding direction and a second cylindrical coil having a second winding direction. The first and second cylindrical coils are arranged in longitudinal succession aligned on a common axis. Mutually adjacent ends of the first and second cylindrical coils are electrically connected to each other, and the second winding direction is opposed to the first winding direction.

Abstract: A torque sensor includes a disk comprising a magnetostrictive, magnetically biased, or magnetizable material, and a magnetic field sensor assembly. A torque acting about an axis of rotation of the disk can be applied to the disk and the magnetostrictive material is configured to generate a magnetic field outside the disk that changes dependent on the effective torque. The magnetic field sensor assembly is configured to output a signal based on the magnetic field generated by the magnetostrictive material, and the torque sensor is configured to determine a value of the acting torque based on the signal that is output.

Abstract: An under vehicle spray device includes a body having two support wheels adapted to facilitate movement of the body along a ground surface. A spray wand is supported by the body. The spray wand has a spray nozzle end and a hand grip end. An upwardly angled spray nozzle section is positioned at the spray nozzle end. A substantially horizontally oriented mounting section is provided which has a longitudinal axis. The mounting section is mounted to the body for limited rotational movement about the longitudinal axis. This permits continuous adjustment of a lateral angle of inclination of the spray nozzle section.