A full-digital control rod position measurement device and a method thereof. The full-digital rod position measurement device transforms the core process of rod position measurement that is normally processed by an analog circuit or analog-to-digital mixed circuit into a digital processing. The full-digital rod position measurement device comprises an excitation power supply, an integrated interface board, and a universal signal processor. The universal signal processor processes output signals of detectors according to a preset numerical processing algorithm and outputs Gray code rod position signals. The full-digital rod position measurement device and method disclosed by the present disclosure may effectively reduce the complexity of the primary excitation circuit and the secondary measurement signal processing circuit of the detectors, and improve the operation reliability and measurement accuracy of the rod position processing equipment.

A system and method for implementing a technique for dynamically switching between or mixing position and orientation determinations in a hybrid tracking system using both electromagnetic and non-electromagnetic tracking, and having a transmitter coil array for generating a magnetic field, a receiver circuit for sensing the magnetic field, and at least one non-magnetic sensor.

A system and method for implementing a technique for dynamically switching between or mixing position and orientation determinations in a hybrid tracking system using both electromagnetic and non-electromagnetic tracking, and having a transmitter coil array for generating a magnetic field, a receiver circuit for sensing the magnetic field, and at least one non-magnetic sensor.

A linear variable differential transformer includes: a moving portion having a shape extending in a direction of an axial line; a bobbin including a through hole formed such that the moving portion is movable in the direction of the axial line, an outer circumferential surface of the bobbin having a shape inclined symmetrically with respect to a center line thereof based on the direction of the axial line; a primary coil wound around the outer circumferential surface of the bobbin; and a secondary coil wound around the wound primary coil, a wound outer surface of the secondary coil having a shape parallel to the axial line.

A rotation sensing apparatus includes a detected part, a sensor unit, and a rotation information calculation circuit. The sensor unit includes a first sensor disposed opposite to a first pattern portion, a second sensor disposed opposite to a second pattern portion, a third sensor disposed to be spaced apart from the first sensor in the rotation direction and opposite to the first pattern portion, and a fourth sensor disposed to be spaced apart from the second sensor in the rotation direction and opposite to the second pattern portion. The rotation information calculation circuit is configured to sense the rotation direction, in response to a differential signal, generated based on the first oscillation signal and the second oscillation signal, and an oscillation signal corresponding to maximum and minimum frequencies, from among the first oscillation signal, the second oscillation signal, the third oscillation signal, and the fourth oscillation signal.

A method for pressurizing and depressurizing a shock absorber of an aircraft. More specifically, it relates to a method in which an aircraft weight and ambient temperature are used to calculate a required pressurization level of a shock absorber. As such, the shock absorber may be pressurized to the correct level without applying an iterative approach, greatly reducing initialization time.

A magnetic core structure for a Linear Variable Differential Transducer (LVDT) comprising an elongate core of magnetic material mounted within a protective tube and means for positioning the core within the protective tube, the means for positioning comprising a ball provided within the protective tube at one end of the core, the ball being formed of an elastic material having a coefficient of thermal expansion selected to compensate the difference in elongation between magnetic core structure components caused by thermal expansion.

A variable inductive displacement sensor includes a primary excitation coil, a first secondary coil. and a second secondary coil. The primary excitation coil is configured to generate a variable magnetic field, and the first and second secondary coils are configured to each generate a signal induced by the variable magnetic field. The primary coil and the first and second secondary coils each have one end which is intended to be connected to a common ground.

An inductive sensor device has a coil arrangement and sensor electronics for determining a longitudinal position of an at least partially electrically conductive and/or magnetically polarizable object moveable at a distance from a device end face along a device sensitive axis. The arrangement has a substantially planar exciting coil for producing an alternating magnetic field for inducing eddy currents and/or magnetic polarization in the object and a first substantially planar receiving coil substantially parallel to and overlapping the exciting coil. The coils are substantially parallel to the end face. The sensor electronics determine at least one parameter of an exciting coil electrical signal, which is variable owing to an inductive backward effect of the object, at least one parameter of a voltage inducible in the at least first receiving coil based on this effect, and the longitudinal position from the determined signal parameter and the determined voltage parameter.

A position sensor, wherein the position sensor detects the movement of a target relative to a sine receiver coil and a cosine receiver coil and generates a corresponding sine signal and a corresponding cosine signal, and a method for error detection of a position sensor.