Disclosed is a unique probe and amplifier circuit for use with a digital height gauge or other measuring device. Fundamentally, the invention utilizes a probe tip operatively connected to the primary and secondary windings of an LVDT; the core of the LVDT being fixedly positioned between the windings. Deflection of the probe in either direction along the axis of the core results in an output signal from the LVDT, the amplitude of the signal being indicative of the magnitude of the deflection. Th...

In a parking assistance apparatus disclosed herein, when a lateral parking mode switch is set at an initial stop position A, a controller calculates a backward movement start position B for parking based on a yaw angle and a steering angle of a vehicle, and issues guiding information to stop the vehicle upon having determined that the vehicle has reached the calculated backward movement start position B. After having sensed that a shift lever was shifted to a reverse position, the controller dis...

A displacement-electric signal converter comprises two annular magnetic bodies disposed concentrically, a magnetizing coil placed in an air gap formed between the two annular magnetic bodies, a short-circuiting ring freely rotatably provided on one of the two annular magnetic bodies, and at least one detecting coil provided on one of the two annular magnetic bodies for detecting magnetic fluxes flowing the interior of the annular magnetic body, an a.c. voltage being supplied to the magnetizing c...

A reliable digital shaft encoder capable of operating at high speeds is shown. A plurality of magnetic segments are embedded in the rotor of the encoder forming two staggered rows. The stator contains a plurality of E shaped magnetic strips through which excitation and pickup coils are wound. Magnetic coupling from the stator strips through the rotor segments induces a voltage in the pickup coils which is then demodulated to provide a position indication.

A variable reluctance transmitter is disclosed wherein a pair of axially positioned coils have annular magnetic pole members on their inner peripheries, and an armature member of magnetic material moves linearly within the pole members. Sensor means moves the armature within the pole members and electrical means are provided for adjusting selectively the voltage range transmitted by the movement of the armature within the coils.

A circuit for energizing a differential inductor transducer uses rectifier voltage dividers in a balanced bridge circuit.

An electromagnetic position indicator to continuously indicate the position of a linearly movable mobile, such as a nuclear reactor control rod, operatively connected to magnetic core means which vary the inductive coupling between primary and secondary windings. One of the windings, preferably the secondary winding comprises pairs of oppositely connected coils spaced apart in the direction of movement of the core means to improve the measurement precision. Analog or digital means may be provide...

A flow measuring and monitoring system is provided that both measures flow and provides an indication when the flow falls below a predetermined minimum flow rate.

An angle-to-current converter for generating an electrical current output in direct proportion to the degree of angular displacement of an input shaft. The converter includes a differential-inductance transducer constituted by a variable reluctance disc mounted on the input shaft, the profiled edge of the disc passing through diametrically-opposed air gaps defined by the cores of a pair of inductors. The profile of the disc edge is so contoured that as the disc rotates, the region of the edge ly...

An interface assembly, system and method for inputting information from a source to a data processor, for example, a computer, which includes a means for translating electrical information into a non-electrical signal and retranslating the non-electrical signal back to an electrical signal to eliminate noise. The interface system also has a capability of being readily checked to facilitate locating troubles in the system.