Provided is an inter-shaft distance measuring device for measuring a distance between two shafts or an amount of a change in the distance that includes: measuring elements that are respectively in contact with peripheral surfaces of the two shafts at a time of measurement and that are used as measurement references; a moving mechanism that includes an elastic member and that holds the measuring elements to move the measuring elements relatively and adds a force in opposite directions separating the measuring elements by an elastic force of the elastic member; and a measurer that measures the change in the distance between the measuring elements. In a state at the time of the measurement, the measuring elements between the two shafts add a pressing force by the moving mechanism respectively to the two shafts in directions widening the distance, and the state at the time of the measurement is maintainable.

System and methods for accuracy improvement of an LVDT are provided. Aspects include determining a first voltage from the first PGA and a second voltage from the second PGA, wherein the first voltage is determined from a PGA coupled to a first secondary winding, and wherein the second voltage is determined from a second PGA coupled to a second secondary winding, iteratively performing: analyzing the first voltage to determine a gain correction is needed for a first gain for the first PGA, the gain correction comprising change to the first gain, and analyzing the second voltage to determine a gain correction is needed for a second gain for the second PGA, the gain correction comprising change to the second gain, based on determining a gain correction is not needed for the first gain and the second gain, calculating a position based on the first voltage and the second voltage.

Systems, methods, and computer program products for sinusoidal nulling are provided. Aspects include transmitting, by a controller, an excitation signal to a first sensor, determining, by the controller, a target harmonic based at least on one or more characteristics of the excitation signal, receiving a return signal from the first sensor, sampling the return signal at a first sample rate based on the target harmonic, and adjusting a phase of the sampled return signal to null the target harmonic amplitude to form an adjusted return signal.

System and methods for partial RMS calculation of overcurrent in VDT driver circuits are provided. Aspects include sampling, by an FPGA, a set of current values from a sense resistor, wherein the sense resistor is coupled between a driver circuit and a VDT, determining, by the FPGA, an overcurrent event in the driver circuit based on the set of current values, wherein determining the overcurrent event in the driver circuit based on the set of current values includes trimming each current value to create a trimmed current value for each current value, calculating a square value for each trimmed current value and storing the square value in a buffer, calculating a mean for the square values, and determining the overcurrent event based on the mean being outside a predefined range of means, and disabling the driver circuit based on the determination of the overcurrent event.

A monitoring system for an agricultural implement includes a sensor configured to output a sensor signal indicative of a position of at least one scraper of the agricultural implement relative to a surface of at least one respective disc. The at least one scraper is configured to engage the surface of the at least one respective disc to remove accumulated soil from the surface of the at least one respective disc. The monitoring system also includes a controller communicatively coupled to the sensor. The controller is configured to determine an amount of wear on the at least one scraper based on the position of the at least one scraper relative to the surface of the at least one respective disc, and the controller is configured to output a wear signal indicative of the amount of wear on the at least one scraper.

A control system is provided for a turbine valve. The turbine valve has a first coil and a second coil to control or sense movement of a mechanical valve positioner. Two valve positioners are provided with each valve positioner having two drive circuits to drive the first and second coils. Switches are provided such that only one drive circuit is connected to each coil at a time. The control system may also include a hydraulic pilot valve section and a main hydraulic valve section. Feedbacks are used to determine a pilot valve error and a main valve error which are combined to determine a turbine valve error. The turbine valve error is repeatedly determined to minimize the error.

An electronic sensor includes a signal generator configured to output excitation signals and a variable differential transformer connected to the signal generator to receive excitation signals. Embodiments of the variable differential transformer may include a primary coil, a first secondary coil connected to the signal generator, a second secondary coil connected to the signal generator, and a core disposed at least partially in a magnetic field generated via the first secondary coil and the second secondary coil and the first excitation signal and the second excitation signal. A phase of an output signal of the primary coil may correspond to a position of the core.

A steering and suspension assembly for the rear wheels of an off-road vehicle includes: a) a first suspension component; b) a first steering component; c) a CV axle; d) a portal box assembly; e) a hydraulic steering assembly for moving the first steering component a distance effective to turn the vehicle at least 2° in either direction when the assembly is mounted to a wheel hub; f) a first suspension connection bracket for connecting the first suspension component to the rear wall of the portal box assembly; and g) a first steering connection bracket for connecting the first steering component to the rear wall of the portal box assembly. The portal box assembly includes: i) a housing having a rear wall, a front wall, and a side wall, wherein the rear wall includes a vehicle axle opening effective to receive the end of said CV axle, and wherein the front wall includes an output shaft opening effective to allow an output shaft to extend outward from the housing; ii) a linking mechanism housed in the housing and effective for linking a CV axle received in the vehicle axle opening to an output shaft; and iii) an output shaft operably connectable via the linking mechanism to the CV axle, and effective to rotate upon rotation of the stock axle.

An apparatus for sensing a rotating body includes a detection target arranged on a surface perpendicular to an extension direction of a rotating shaft of the rotating body, a sensor module facing the detection target, and comprising two sensors disposed in a rotation direction of the rotating body, and a rotation information calculator configured to calculate rotation information of the rotating body based on sensed values from the two sensors, wherein the rotation information calculator is further configured to calculate a rotation angle of the rotating body in accordance with a difference value generated from the sensed values.

The invention relates to a novel type of electric inductance arrangement for a series of applications in the field of distance measurement, sensor-based detection of objects, and construction of induction machines. The novelty consists in the type of inductance arrangement of the receiver or transmitter coil, said arrangement being designed in the form of a ladder rung arrangement, wherein the ladder spars short-circuit the rungs. The sum of all the short-circuit currents is an indicator of what is occurring in the surroundings of the arrangement. This could be changing magnetic fields caused by transmitter objects or additional ladder-rung systems acting as transmitters. Multiple such sensors and transmitters can be designed in the ladder-rung form, said sensors and transmitters being connected in parallel or in series according to the application under certain circumstances and if necessary assuming the excitation function by moving a conductor through which a direct current is flowing or by applying alternating currents. The aforementioned inductance arrangement results positively in that the coils can all have a completely crossover-free design and are therefore substantially simpler to technically implement for very different applications in electrical engineering. The applicability ranges from short-range distance measuring devices and long-range object location to light detection and efficient induction machines with large or also very small constructions.