A device having two mutually spaced sensor loops is provided. The device includes a magnetostrictive sensor structure coupled to a plurality of transmitters and a plurality of receivers, and along which a magnet that is secured to the rotating component moves. Each sensor loop has a shape corresponding to a rotating direction of the rotating component. Two saturation zones are in both sensor loops. Each transmitting element is provided for simultaneously coupling two current pulses in opposite direction into one respective sensor loop. Each receiving element is positioned to receive a reflected pulse by the magnet at the respective saturation zone. The receiving elements are connected to evaluation electronics configured to for determine an angular position of the rotating component based on transit times for the current pulse to travel along the respective sensor loop from the respective transmitting element to the respective saturation zone and for each reflected pulse to travel along the respective sensor loop from the respective saturation zone to the respective receiving element.

A system for dynamically adjusting an operation of a magnetostrictive position sensor is provided. The system includes a controller configured to receive an electrical signal from the magnetostrictive position sensor that includes a response pulse, identify factory calibration data that correlates initial recorded values of amplitudes of response pulses received from the magnetostrictive position sensor at different locations of a position magnet along a length of the magnetostrictive position sensor, identify an initial amplitude of the response pulse based on the factory calibration data, calculate a difference between the initial amplitude and an amplitude of the response pulse, determine if the difference is greater than a threshold value, and generate an alert in response to determining that the difference is greater than the threshold value.

A magnetostrictive position measuring method determines a time of flight of a magnetostrictive response transmitted through a waveguide. The magnetostrictive response is generated using a target magnet in response to a magnetostrictive excitation. In the method, an electrical response signal containing an indicator of the magnetostrictive response is digitally sampled at a sampling rate to obtain a plurality of samples. An amplitude of each of the plurality of samples within a target frequency range is determined through an analysis of the plurality of samples in a frequency domain. A peak sample from the plurality of samples in the frequency domain corresponding to the magnetostrictive response is identified. The time of flight and a position of the target magnet along the waveguide is determined based on the peak sample.

The present disclosure relates to displacement measurements using magnetic displacement measurement units. In various embodiments, the disclosed displacement measurement unit is configured to determine a displacement position of a vehicle along a guideway. In various embodiments, the displacement measurement unit includes a set of locator devices that are distributed at fixed displacement positions along the guideway, where a given locator device includes a magnetic element configured to produce a corresponding magnetic field. Further, in various embodiments, the displacement measurement unit includes a position sensor that is attached to the vehicle, where the position sensor is configured to detect a magnetic field produced one or more of the locator devices when the position sensor is brought within a detection range of one or more locator devices.

Since the functional unit (PS-F) of a position sensor is no longer to be repaired in the event of failure, but is to be replaced completely—which is nevertheless to be carried out according to the principle of bloodless removal, especially when arranged in a piston of a working cylinder unit—according to the invention, such functional units are manufactured in different dimensions and possibly also functioning according to different measuring principles in a very simple and cost-effective manner and according to the modular principle in that a functional rod (FS) of the functional unit (PS-F) on the one hand the electronics board (2) with the evaluation unit (12) on the other hand are each inserted opposite the pot-shaped head housing (1), from which the functional rod (FS) then protrudes from the open side (1a), and are pre-fixed to the latter, and the head housing (1) is then cast from the open side, which only brings about the firm connection between the evaluation electronics (12) on the one hand and the functional rod (FS) on the other after curing.

This results in a fully functional functional unit (PS-F), which can also be tested and programmed, but which is nevertheless housed by the customer—depending on the application—in a further protective housing (100), usually made of metal.

A method for installing a stroke sensor is provided such that the stroke sensor can be easily adjusted using a simple process. The method has the steps of; obtaining a relationship between the magnetic field and the indicator value while moving the magnet in the first direction relative to the magnetic field detecting element within a predetermined relative movable range, and writing the relationship in the processor; after the relationship is written in the processor, preventing the predetermined relative movable range from being shifted in the first direction by means of a jig for preventing positional shift, wherein the jig includes an element that fixes relative positions between the magnetic field detecting element and the magnet; attaching the magnet and the magnetic field detecting element, which have been prevented from being shifted, to different structures that are movable in the first direction relative to each other, and removing the jig.

An assembly having a bearing with an axis of rotation, and a fibre-based sensor for sensing strain or temperature of the bearing is disclosed. The sensor extends in a direction parallel to the axis of rotation. An aircraft system is disclosed including a wheel supported on an axle by a first bearing and a second bearing. The system further includes a first fibre optic sensor for sensing a strain or temperature of the first bearing, a second fibre optic sensor for sensing a strain or temperature of the second bearing, and an interrogator to analyse optical signals from the sensors to determine differences in the strains or temperatures of the first bearing and the second bearing.

Since the functional unit (PS-F) of a position sensor is no longer to be repaired in the event of failure, but is to be replaced completely—which is nevertheless to be canred out according to the principle of bloodless removal, especially when arranged in a piston of a working cylinder unit—according to the invention, such functional units are manufactured in different dimensions and possibly also functioning according to different measuring principles in a very simple and cost-effective manner and according to the modular principle in that a functional rod (FS) of the functional unit (PS-F) on the one hand the electronics board (2) with the evaluation unit (12) on the other hand are each inserted opposite the pot-shaped head housing (1), from which the functional rod (FS) then protrudes from the open side (1a), and are pre-fixed to the latter, and the head housing (1) is then cast from the open side, which only brings about the firm connection between the evaluation electronics (12) on the one hand and the functional rod (FS) on the other after curing. This results in a fully functional unit (PS-F), which can also be tested and programmed, but which is nevertheless housed by the customer-depending on the application in a further protective housing (100), usually made of metal.

Systems, assemblies, and methods can involve a retainer assembly adapted to interface with a sensor rod of an in-cylinder position sensor assembly of a fluid cylinder. The retainer assembly can comprise an annular body that defines a bore extending from a first end of the annular body to a second end of the annular body opposite the first end; a sleeve disposed in the bore at an inner wall of the annular body; and one or more magnets fixedly provided between the annular body and the sleeve in a radial direction of the annular body. Each of the one or more magnets may be fixedly molded in place between the annular body and the sleeve in the radial direction of the annular body.

Instead of tapping a mechano-elastic desnity wave (MEDW) from a wave conductor or a Villary band through a detector coil, a changing field strength H is captured by a XMR sensor which is positioned on a wave conductor or proximal to the wave conductor or on a Villary band or proximal to the Villary band.