A tool device, such as a lawnmower, or a steerable-wheel assembly therefor may include a frame, a walking element, a drive motor, and a steerable-wheel assembly (SWA). The walking element may be coupled to the frame. The drive motor may selectively power the walking element. The SWA may be attached to the frame apart from the walking element. The SWA may include a caster connector pivotably mounted to the frame to rotate about a pivot axis, a steerable wheel rotatably coupled to the caster connector, a detectable magnet fixed to the caster connector to pivot therewith about the pivot axis, and an encoder including a magnetic sensor fixed to the frame apart from the caster connector to detect a pivotable position of the detectable magnet.

A high-precision multi-pole magnetoelectric encoder includes a mounting seat, a rotating shaft, a single-pole magnet ring, a single-pole signal processing board, a shielding shell, an n-pole magnet ring, an n-pole signal processing board, a housing, a conductive rubber pad, an aviation plug, bearings, copper columns, Hall components, and assembly screws. The magnetoelectric encoder improves the environmental adaptability and replaceability of the high-precision multi-pole magnetoelectric encoder by redesigning the structure of the multi-pole encoder. It eliminates errors caused by changes in the position of magnets and Hall sensors during the replacement process, reduces interference caused by the multi-pole magnet encircling the single-pole magnet, enhances resistance to electromagnetic interference, thereby increasing the detection accuracy of the magnetoelectric encoder, and improves the performance and competitiveness of the product.

An inductive position sensor device for detecting a positional location of a position encoder element having a position reception device, wherein the position reception device includes a printed circuit board of multilayer design and having a coil assembly, wherein the coil assembly includes at least one excitation coil and at least a first and a second reception coil, wherein the first and the second reception coil each include a number of windings which are at least partly surrounded by the excitation coil, wherein the first reception coil includes a compensation winding which is arranged at least in certain areas above and/or below a subsection of the excitation coil.

Embodiments herein are directed to a pedal assembly that includes a pedal arm, a drive assembly, and a sensing assembly. The pedal arm having a pair of protrusions extending therefrom and at least one has a geared surface. The drive assembly has a gear configured to complement the geared surface of the one of the protrusions. The sensing assembly has a first sensor assembly configured to sense movement of the gear and a second sensor assembly configured to sense movement of the at least one of the pair of protrusions. When a force is applied onto the pedal arm, the at least one of the pair of protrusions having the geared surface moves to drive the gear, the first sensor assembly and the second sensor assembly independently sense the movement of the gear and the at least one of the pair of protrusions, respectively.

A method for determining the angular position of a shaft of a motor vehicle. The method includes calculating the mean angular resolution; calculating the time at which the cosine signal passes through zero; using the time at which the sine signal passes through zero and the mean angular resolution; determining the measured angle at the calculated time at which the cosine signal passes through zero; calculating the amplitude of the second harmonic of the measured angle signa;, calculating a second-harmonic error from the calculated amplitude of the second harmonic; and calculating a compensated angle representing the corrected angular position of the shaft from the real-time measured angle and from the calculated second-harmonic error.

Provided is a rotation detector capable of suppressing the occurrence of erroneous detection. Rotation detector includes magnet that rotates together with a rotary shaft, a plurality of power generation elements that generate power according to a change in a magnetic field due to rotation of magnet together with the rotary shaft, and a plurality of magnetic sensors provided to a corresponding one of the plurality of power generation elements. Rotation detector further includes information processor that determines a rotational position of the rotary shaft by using the plurality of magnetic sensors, and generated power supply unit that supplies the power generated by each of the plurality of power generation elements only to the corresponding one of the plurality of power generation elements.

A piston assembly includes a housing, a piston positioned within the valve housing, and an inductive proximity probe sensor positioned on the housing configured to detect a position of the piston with the housing. The piston is configured to at least one of rotate or translate axially relative to the housing. The piston includes a variable surface. A fuel control system includes the piston assembly, a servo valve in fluid communication with the piston assembly, and an engine controller. The engine controller is operatively connected to the inductive proximity probe sensor.

A swivel angle measuring device is configured to indirectly sense a swivel angle of a swashplate or cylinder drum of an axial piston machine. The swivel angle is adjustable using an adjustment piston guided in an adjustment cylinder. The swivel angle measuring device includes a movable encoder and a transducer affixed to a housing. The encoder is formed by two permanent magnets that are carried linearly and translationally by the adjustment piston along its direction of movement and that have a distance to one other.

Disclosed are systems, methods, and techniques for linearizing sensor device rotation angle measurements. In particular, described are systems, methods, and techniques for linearizing sensor device rotation angle measurements without knowledge of actual rotation angles of a target. That is, using systems, methods, and techniques disclosed herein, a sensor device may self-linearize rotation angle measurements of a target. In some embodiments, a linearization process may be applied continuously or periodically over time so as to address changes in the nonlinearities of a rotation angle measurement system.

Disclosed are example systems and methods for differentially sensing a magnetic field. In particular, described are example systems and methods that can be used to differentially sense magnetic fields generated by magnetic targets having a variety of characteristics. Using the systems and methods disclosed herein, a sensor device may be configured to differentially sense a magnetic field and provide stray field immunity in a variety of applications, where magnetic targets having a variety of different characteristics may be used.