A recorder for documenting that a shaft in a rotating machine has been rotated while the rotating machine is stored or otherwise out of service. The recorder includes an elongated strip that is wound on a reel disposed adjacent the shaft. The reel is rotatable about an axle that is spaced away from the shaft. A free end of the strip is secured to an outer surface of the shaft and spools onto the shaft as the shaft is rotated, and which unwinds the strip from the reel. Markings are on the strip representing distance from the free end, which visually indicate occurrence and amount of shaft rotation. Types of markings include different colors or patterns, and which change at distances corresponding to shaft circumference. Alternatively, the markings are metered increments illustrating linear distance.

A landing gear system includes a landing gear collar and a strut assembly supported by the landing gear collar. The strut assembly includes a piston that is adjustable between a fully extended position and a fully compress position. The landing gear system further includes a rotary encoder and a controller. The rotary encoder rotates in response adjusting the piston and to outputs a data value in response to its rotation. The controller is in signal communication with the rotary encoder and determines a stroke of the piston based on the data value output from the rotary encoder.

A fly-by-wire steering system uses one or more magnets and one or more magnetic sensors to determine the position the rack of the steering system. The magnetic sensors provide a high-level signal when proximate to magnet. The signals from magnetic sensors provide an indication of the position of the rack. The sequence of changing values of the signals magnetic sensors provides an indication of the direction of travel of the rack. The signals may be used to calibrate a steering sensor and/or an actuator.

A position sensor for a linear actuator, a production method for a position sensor, a linear actuator with a position sensor, and a method for determining a position of a linear actuator. The position sensor has a capacitor arrangement and a data processing device. The capacitor arrangement has a first capacitor element and a second capacitor element arranged to be movable relative to the first capacitor element and designed to generate a capacitive signal. A data processing device is configured to determine the position of the second capacitor element relative to the first capacitor element based on the capacitive signal. The second capacitor element is made of an electrically conductive polymer.

A position sensor is provided that can detect a position along a long stroke and that can limit an increase in size. A magnetic sensor has a first magnetic field detecting element that is positioned in a first track; a first processor 4A that outputs voltage VM1 when intensity of a first magnetic field that is applied to the first magnetic field detecting element is equal to or larger than a threshold and that outputs predetermined high voltage VH when the intensity of the first magnetic field is less than the threshold, wherein the voltage VM1 is voltage between predetermined low voltage VL and the high voltage VH and indicates positions of the magnets relative to the first magnetic field detecting element; a second magnetic field detecting element that is positioned in a second track; and a second processor 4B that outputs the low voltage VL when intensity of a second magnetic field that is applied to the second magnetic field detecting element is less than the threshold and that outputs voltage VM2 when the intensity of the second magnetic field is equal to or larger than the threshold, wherein the voltage VM2 is voltage between the low voltage VL and the high voltage VH and indicates positions of the magnets relative to the second magnetic field detecting element.

An apparatus configured to measure the output of a rotary actuator unit includes a rotary actuator unit. The unit includes a stationary portion, a rotating portion, and a main rotational axis (L) that runs in an axial direction from a first end of the rotary actuator unit to a second end of the rotary actuator unit. The first end is opposite the second end. The apparatus also includes a linear position sensor comprising a follower, a sensor, and a sensor arm, wherein the follower is attached to the sensor by sensor arm; and wherein the sensor is attached to the stationary portion. The apparatus also includes a follower track attached or formed in, or on, to the rotating portion. The follower track is aligned in the circumferential direction that is perpendicular to axial direction of the main rotational axis (L). The follower is configured to follow the follower track.

A position sensor is provided that can detect a position along a long stroke and that can limit an increase in size.

A magnetic sensor has a first magnetic field detecting element that is positioned in a first track; a first processor 4A that outputs voltage VM1 when intensity of a first magnetic field that is applied to the first magnetic field detecting element is equal to or larger than a threshold and that outputs predetermined high voltage VH when the intensity of the first magnetic field is less than the threshold, wherein the voltage VM1 is voltage between predetermined low voltage VL and the high voltage VH and indicates positions of the magnets relative to the first magnetic field detecting element; a second magnetic field detecting element that is positioned in a second track; and a second processor 4B that outputs the low voltage VL when intensity of a second magnetic field that is applied to the second magnetic field detecting element is less than the threshold and that outputs voltage VM2 when the intensity of the second magnetic field is equal to or larger than the threshold, wherein the voltage VM2 is voltage between the low voltage VL and the high voltage VH and indicates positions of the magnets relative to the second magnetic field detecting element.

An electric power steering system includes: a steering bar, an electric motor, a linear position sensor, and a sensing means. The steering bar is mechanically connected at each opposing end to a respective wheel carrier. The linear position sensor having one elongate feature that extends diagonally along a length of the steering bar such that it is inclined relative to the axis of the steering bar. The sensing means faces the steering bar and at any given time observes only a slice of the elongate feature that extends across the full width of the feature and along only a part of the length of the feature. The sensing means generates a signal that varies depending on the pattern formed by the feature and adjacent portions of the steering bar that is observed by the sensing means.

A device (1), in particular an electronic throttle system, in particular for motorcycles, having a handle (2) and a measuring arrangement assigned to this handle (3), wherein a rotary movement of the handle (2) is transmitted to and acts on the measuring arrangement, wherein means are provided which convert a rotary movement of the handle (2) into a limit movement of at least a part of the measuring arrangement.

The system of the present disclosure replaces the reduction gearbox of a conventional system with a screw shaft and nut system wherein the position of the nut feeds into a linear sensor that determines the stabilizer position based on the nut position. The screw shaft and nut system in the position sensor train is reflective of the screw shaft and nut system and the stabilizer movement end of the assembly whereby rotation of the shaft causes axial movement of the nut along the shaft.