A rotation angle sensing device is provided with a magnet that has a component with a magnetization vector in a direction orthogonal to a rotary shaft, a magnetic sensor part that outputs a sensor signal, and a rotation angle sensing part that detects a rotation angle of a rotating body based upon the sensor signal; the magnet has first and second surfaces substantially orthogonal to the rotary shaft, and a concave side surface that is continuous throughout all circumferences in the circumferential direction; the magnetic sensor part is placed within the space surrounded by the concave side surface, and at a position where an amplitude of a magnetic field intensity H.sub.r and an amplitude of a magnetic field intensity H.sub.θon the virtual plane are substantially identical to each other, and outputs either the magnetic field intensity H.sub.r or the magnetic field intensity H.sub.θ as the sensor signal.

An absolute position detecting device and method are provided. The absolute position detecting device utilizes the incremental magnetization on a magnetic encoding ruler with two different pole widths, such that elliptical Lissajous curves may be obtained by magnetoresistive sensors. The absolute position may be obtained by determining the region of the signals on the ellipses read by the magnetoresistive sensors.

A wearable device includes a dial plate, a watch body and an angle detection member. The dial plate is provided with an accommodating groove. The watch body is at least partially disposed in the accommodating groove and is rotatably connected to the dial plate, and the watch body is provided with a functional component. The angle detection member includes an annular resistor and a conductive connector electrically connected to the annular resistor. One of the annular resistor and the conductive connector is disposed at the dial plate, and the other is disposed at the watch body. The annular resistor is in sliding connection with the conductive connector.

A wearable device includes a dial plate, a watch body and an angle detection member. The dial plate is provided with an accommodating groove. The watch body is at least partially disposed in the accommodating groove and is rotatably connected to the dial plate, and the watch body is provided with a functional component. The angle detection member includes an annular resistor and a conductive connector electrically connected to the annular resistor. One of the annular resistor and the conductive connector is disposed at the dial plate, and the other is disposed at the watch body. The annular resistor is in sliding connection with the conductive connector.

In an FPGA, waveform data to be sent from the FPGA to a DAC is stored, and a logical circuit is configured from a detection circuit for extracting test force value and elongation value signal components from a signal input from an ADC, an offset subtractor, and a gain multiplier. The detection circuit extracts a resistance component proportional to the test force and displacement. In the detection circuit, an expression that includes a harmonic component of an odd multiple of the carrier frequency is used as a correlation function for extracting the resistance component. As a result, it is possible to obtain calculation results at a sampling frequency that is higher than the carrier frequency.

A scalable tractive power system for vehicles (car, truck, bus, semi-trailer), integrated with all-wheel steering system which leverage synergies between plurality of differently designed electric traction-motors and all-wheel electric steering-motors is configured with plurality of sensors to virtually eliminate wheel-dragging and EPS, as part of virtually 100% dynamic efficiency. A fully automated electronic clutch-system attached to selected electric traction motors is configured to carry out above 90% traction efficiency by coupling to wheels selected electric traction-motors in their high efficiency range of operation, and de-coupling and replacing electric traction-motors with another electric traction-motors while the vehicle is changing speed or when the vehicle requires higher or lower tractive-power, from forward-motion start to top-rated speed of the vehicle. A holistic controller is configured with multi-objective optimization design (MOOD) procedures computing complex variable values and parameters, finding the required trade-off among design objectives, and improving the pertinence of solutions, while complying with NHTSA's ‘fail operational systems’ for steer-by-wire.

A scalable tractive power system for vehicles (car, truck, bus, semi-trailer), integrated with all-wheel steering system which leverage synergies between plurality of differently designed electric traction-motors and all-wheel electric steering-motors is configured with plurality of sensors to virtually eliminate wheel-dragging and EPS, as part of virtually 100% dynamic efficiency. A fully automated electronic clutch-system attached to selected electric traction motors is configured to carry out above 90% traction efficiency by coupling to wheels selected electric traction-motors in their high efficiency range of operation, and de-coupling and replacing electric traction-motors with another electric traction-motors while the vehicle is changing speed or when the vehicle requires higher or lower tractive-power, from forward-motion start to top-rated speed of the vehicle. A holistic controller is configured with multi-objective optimization design (MOOD) procedures computing complex variable values and parameters, finding the required trade-off among design objectives, and improving the pertinence of solutions, while complying with NHTSA's ‘fail operational systems’ for steer-by-wire.

A sensor assembly comprising a first rotary sensor part having a plurality of individual electrically conducting code segments arranged in a circumferential pattern, and a plurality of electrically conducting reference segments between the code segments, and a second rotary sensor part arranged rotationally relative to the first part a plurality of contact structures, each contact structure being arranged to be in contact with either a code segment or a reference segment depending on the rotational position between the first and second rotary sensor part. The contact structures are configured to engage and connect to different sensor segments as the first and second rotary sensor part rotate relative to each, the created connections being indicative of a rotational position between the first and second rotary sensor part. For a given rotational position, at least one contact structure engages a code segment and at least one contact structure engages a reference segment.

In an implementation, a position transducer includes a printed circuit board (PCB) and a wiper in sliding contact with the PCB. The PCB includes a first and a second connector pad, and a conductive trace comprising two legs. One leg has an end electrically communicatively coupled to the first connector pad, and the other leg has an end electrically communicatively coupled to the second connector pad. The wiper includes a first blade electrically communicatively coupled to the first leg and a second blade electrically communicatively coupled to the second leg. In operation, an electrical path length of a conductive path between the first and the second connector pad depends, at least in part, on a relative position of the PCB and the wiper. One or more of the position transducers can be used to determine a relative position of actuatable components of a robotic digit.

In an implementation, a position transducer includes a printed circuit board (PCB) and a wiper in sliding contact with the PCB. The PCB includes a first and a second connector pad, and a conductive trace comprising two legs. One leg has an end electrically communicatively coupled to the first connector pad, and the other leg has an end electrically communicatively coupled to the second connector pad. The wiper includes a first blade electrically communicatively coupled to the first leg and a second blade electrically communicatively coupled to the second leg. In operation, an electrical path length of a conductive path between the first and the second connector pad depends, at least in part, on a relative position of the PCB and the wiper. One or more of the position transducers can be used to determine a relative position of actuatable components of a robotic digit.