Matches 1 - 50 out of 139 1 2 3 >
Match Document Document Title
6243023 Encoder and parameter establishing device therefor  
An encoder comprises position detecting device for detecting a magnetic pole position and a rotational position of a motor. The encoder also includes a memory portion for storing parameter...
5815089 Device for transmitting signals from position detector and method of such signal transmission  
A transmitting device, for transmitting position detector signals, comprises a controller for processing signals on various kinds of data from an object of interest; a position detector that has a...
5521496 Detection circuits for position sensors  
A detection circuit for a position sensor has drive circuitry 3 connected to two impedance elements 1a, 1b having an impedance which varies in dependence on the position of a movable member, so as...
5497147 Differential variable reluctance transducer  
The novel differential variable reluctance transducer and telemetry system is comprised of a ultra miniaturized device encased in stainless steel. The system contains a free sliding, magnetically...
5382899 Position detecting and time measuring device providing measurement finer than a clock signal period  
First absolute position detecting section generates an A.C. output signal having a phase electrically shifted in accordance with a position of a moving object, and samples a counted value of a...
5280238 System for processing position signals that are reponsive to displacement of an object  
In a system for processing signals responsive to the position of an object, a pair of position sensors are mounted to produce sinusoidal wave signals corresponding to positioning scale markings on...
5223830 Sensor circuit  
A sensor circuit has a measuring circuit in which measuring signals occur at two different circuit points and signals at one point change oppositely to signals at the other point during changing of...
5218295 System for processing position signals to improve resolution of the position of an object  
System for processing fine position signals pulse-width modulates signals from two magnetic sensors for producing sinusoidal wave signals different from each other in phase by a quarter cycle in...
5204674 Servo mechanism with differential phase shift feedback  
A position sensor which can be incorporated into a positional feedback-type servo mechanism includes a mechanical sensor element, an oscillator and first and second phase shifters, which in the...
5175541 Evaluating circuit for inductive displacement pickup  
An evaluating circuit for an inductive pickup has a rectangular signal generator for outputing a rectangular signal, a driver stage for supplying a displaement pickup with an input signal produced...
5027853 Limit switch replacement system and universal bracket  
Apparatus which monitors the extent to which a mechanical valve (2) is opened which employs a rotary position transducer (5). The rotary position transducer (4) provides a signal representative of...
5010298 Variable inductance displacement measuring device with slidable metal sleeve and ferrite bead core  
A displacement measuring apparatus including a variable inductance coil formed of a pair of coils, on a core of predetermined length made of a material having high magnetic permeability. The pair...
4965547 Signal converter circuit  
A circuit which converts one parameter to another such as from temperature to electricity. The circuit comprises a three winding differential transformer with one winding connected to output...
4855734 Relative position indication system  
A relative position indication system comprises a cyclical position sensor which includes first and second plates having cyclical windings thereon. The position indication system is operative for...
4754220 Digital output rotational position detection device  
The present device comprises a stator having a plurality of poles on which primary coils and at least one secondary coil is wound, and a rotor opposing the respective poles of the stator with gaps...
4700189 Linear resolver  
A linear synchro/resolver comprised of an opposed pair of stator assemblies, each of which has a plurality of corresponding, opposed, toothed pole piece pairs, a toothed slider movably mounted...
4690168 Valve actuator position indicating system  
A valve actuator for controlling and sensing the rotational position of a valve member includes a positional indicator for sensing the angular position of an actuator shaft, the positional...
4649340 Magnetic differential position sensor  
To determine the relative position of two objects, for example pistons (16, 22) respectively responsive to the deflection of a brake pedal (10) and actual braking pressure of a wheel of a wheel...
4455555 Control transducer  
An inductive displacement transducer includes a primary and at least two secondary coils with a movable coupling member for varying the amount of mutual coupling therebetween as a function of the...
4358762 Inductive transducer responsive to displacement along a path  
The variable inductor and the comparison inductor of a semi-differential variable inductance both have a pair of coils magnetically coupled together. The output current of an amplitude-controlled...
4322727 Inductive transducer responsive to displacement along a path  
The variable inductor and the comparison inductor of a semi-differential variable inductance both have a pair of coils magnetically coupled together. The output current of an amplitude-controlled...
4223300 Electro mechanical position indicator using relatively moveable coils  
An electromechanical positioner indicator is provided which comprises first and second relatively movable parts, the first part including two oppositely facing surfaces which are everywhere...
4148013 Rotating shaft alignment monitor  
A system for monitoring misalignment between two in-line rotating shafts and for indicating the direction of shaft misalignment wherein alignment sensors are mounted directly to and rotate with the...
4132980 High-sensitivity inductive transducer for rectilinear or rotational displacement  
A core with at least three elongated legs, at least one leg being centrally located among all the elongated legs, is joined at at least one end by a yoke portion connecting all the legs. The...
4112366 Electromagnetic displacement scanner using an E-shaped core oblique to the scan direction  
An improved electromagnetic scanner has a substantially E-shaped core having an outer surface that is positioned, at a predetermined air-gap spacing, from a regularly grooved ferromagnetic surface...
4100480 Position and velocity sensors  
A sensor of the linear voltage differential transformer (LVDT) type is described, with a moveable core, which has both high permeability and magnetic retentivity, to thereby provide both position...
4083237 Differential reluctance motion detector  
A displacement detector yielding an electrical output signal that is linearly proportional to the extent of input motion. The input motion to be monitored is applied to the shiftable armature of a...
4080592 Transducer for vehicular service compensated for accelerator movements of the vehicle  
An inductive transducer is provided with a core with legs extending in opposite directions from a yoke on which a coil is wound. On the leg portions extending on one side of the coil a...
4013911 Displacement - electricity transducer  
A displacement - electricity transducer contains a movable magnetic core and a fixed magnetic core oppositely arranged so as to have predetermined gaps or clearances in at least two places. Two...
4000448 Control system for sensing the air gap between a cutting tool and a work piece  
A system for sensing the air gap between a cutting tool and a work piece mounted on a machine for the purpose of controlling the traverse feed rate of the machine as contiguity approaches. A drive...
3961243 Inductive displacement transducer using a bridge circuit having a stable voltage phase in the diagonal of the bridge  
An inductive displacement transducer comprising a current measuring bridge circuit including a pair of adjustable electrical resistors coupled in series relationship in one half thereof, and a pair...
3931737 Pulsating liquid flow transmitter  
A flow transmitter for monitoring pulsating liquid flow rates, such as intermittent or cyclic impulsion produced by reciprocating pumps, employs a short stroke, variable area flowmeter having an...
3919703 Fault detection system for transducers  
A fault detection system including first and second transducers adapted to receive alternating current, a common conductor coupled to the transducers, and a failure detector. The alternating...
3890607 Electromagnetic position indicator  
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...
3890516 Pulse producing devices  
Pulse producing devices, particularly for use in ignition systems in road vehicles, include a pair of E-shaped cores with windings, and tracks on a movable part which influence flux flow between...
3846804 FORCE BALANCE INSTRUMENT WITH OVERLOAD RELEASE MECHANISM  
A force balance instrument having an overload release mechanism through which the force to be balanced is applied to means for producing the balancing force. The mechanism is a first lever...
3827291 TRANSDUCER SYSTEMS FOR DETECTION OF RELATIVE DISPLACEMENT  
A transducer system wherein relative displacement of two members is detected by the change in inductive coupling between a single coil on one member and a pair of opposed coils on the other member,...
3820094 DISPLACEMENT-ELECTRIC SIGNAL CONVERTER  
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...
3810136 DIGITAL POSITION SENSOR  
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...
3803566 VIBRATION-COMPENSATED INDUCTIVE PICKOFF  
1. An inductive pickoff of the character described comprising a stator having a plurality of pairs of spaced similar radially extending opposed pole pieces, spacing means by which the pole pieces...
3756081 DISPLACEMENT TRANSDUCERS  
A transducer for converting mechanical displacement into an electrical signal comprises a length of resistive wire movable in an inductance coil to change its inductance. Preferably the inductance...
3742342 MEASURING TRANSDUCER WITH COMBINED POWER INPUT AND SIGNAL OUTPUT LINES  
A measuring transducer for converting a quantity to be measured into an electrical signal, the transducer having but two lead-in wires for providing voltage and current to the transducer as power...
3742340 INDUCTIVE ANGLE POSITION TRANSDUCER  
An angular position transducer wherein the stator comprises a generally cup-shaped housing of high permeability material the bottom thereof supporting diametrically opposed primary and secondary...
3701136 SYSTEM FOR DETECTING THE POSITION OF A MOVABLE ELEMENT  
The system includes a position transducer connectible to an ac power supply for providing an electrical signal which is a function of the position of a movable member. The position transducer...
3696513 THREE-PHASE GAUGING SYSTEM  
A gauging system for determining the relative relationship of given locations on an item being gauged with respect to each other or a reference location utilizing multiple-phase alternating...
3689905 HIGH-FREQUENCY INDUCTANCE TYPE APPARATUS FOR DETECTING SLIGHT MOVEMENT  
A movement detecting device with a power transformer coupled to a high-frequency signal source. Supplemental windings are connected to the secondary of the power transformer and to respective...
3684961 DISPLACEMENT TRANSDUCER WITH INDUCTIVE SENSING HEAD AND MEANS PROVIDING SEPARATE DISPLACEMENT AND DIRECTION SIGNALS  
A displacement transducer suitable for use in an automatic transfer machine includes an inductive sensing head the output of which is used to generate an indicating signal of a polarity and...
3683344 DISPLACEMENT-ELECTRIC SIGNAL CONVERTER  
A displacement-electric signal converter having a pair of displacement deting elements the impedances of which vary in accordance with a displacement, a rectifier including a bridge circuit, first...
3670318 LOAD CELL OUTPUT CIRCUIT  
A load weighing system including an oscillator for supplying a signal to a load cell and at the same time supplying a like signal to a phase detector circuit. The output of the load cell is coupled...
3668701 MONITORING APPARATUS  
A monitoring circuit monitors separate transducers energized by an alternating current carrier for determining if a failure to track occurs and for detecting failure of components of the monitoring...
Matches 1 - 50 out of 139 1 2 3 >