Abstract: A torque sensor is disclosed. The sensor has a support member for mounting to a rotatable shaft and a flexible electro-conductive member pre-tensioned and mounted to the support. An electrical coil is positioned in electrical communication with the support member and electro-conductive member. A magnetizing system is positioned adjacent the support member. The sensor is passive and operates on energy received from its rotation relative to the stationary magnetizing means. A receiver remotely detects electrical changes from the movement of the flexible member from torque experienced by the rotatable shaft.