Matches 151 - 200 out of 388 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
4779075 Device for absolute displacement determination  
To make possible a technically uncomplicated and reliable absolute displacement determination--in particular for the position determination of robot drives--a cyclic position transmitter (L) and a...
4764767 Absolute rotational position detection device  
On a circumferential side surface of a single cylindrical member constituting a main body of a rotor section are disposed, in parallel, a first pattern which repeats change in the circumferential...
4758836 Inductive coupling system for the bi-directional transmission of digital data  
A bi-directional, digital data transmission system is disclosed for transmitting an interrogation signal in a first direction from an interrogation unit to a data gathering transponder unit, and a...
4749993 Arrangement for the wireless transmission of measuring signals  
An arrangement provides for the wireless transmission of a measuring signal from a sensor to an evaluating unit by a pair of first electrical coils that are temporarily inductively coupled with one...
4748447 Timing signal generating apparatus for rotating devices  
In a timing signal generating apparatus for generating a timing signal showing that a rotating member has reached a target rotational angle position, the apparatus comprises a first generator for...
4728950 Magnetic sensor apparatus for remotely monitoring a utility meter or the like  
The present invention relates to a magnetic sensor apparatus (21) for use in a remote meter monitoring system (20) for remotely monitoring the dials (54a-e) of a utility meter (56) by use of Hall...
4725839 Remote, inductively coupled, transducer interface  
An exciter and detector circuit (A1, A2) is inductively coupled (18, 20) with a current conductor (B). The current conductor extends to a remote location at which it is inductively coupled (26, 30)...
4707695 Magnetic position sensor  
In a magnetic detector for receiving a reference position signal in movement from an encoder track and a reference track arranged on a member included in a magnetic position sensor, magnetic...
4703326 Method and apparatus for measuring pressures in a rotor of a turbomachine  
A method and apparatus for measuring pressures in a gas turbine engine comprising a stator, a hollow rotatable shaft carrying a rotor and a first sensor having a plurality of inputs for pressure...
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...
4697183 Means for non-contacting signal and energy transmission  
A noncontacting signal and energy transmission device includes a stationary microstation and a moveable microunit, wherein data is transmitted between the microstation and the microunit...
4695795 Rotation sensor with co-planar velocity and position responsive elements  
A rotation sensor inlcudes circuitry for sensing both small units of rotation of a rotating body relative to a stationary body and a predetermined angular orientation of the former to the latter,...
4686530 Cable transmission of signals  
A light conductor has two sealed embedding elements molded to its ends, respectively containing a light emitter and a light receiver. The light emitter is connected to a likewise embedded Wiegand...
4675603 Apparatus for determining the position of an object  
An apparatus for determining the position of an object has an outer fixed field winding extending along an axis, a source for energizing the field winding with alternating current and thereby...
4673875 Apparatus including contact free transfer of signals for measuring the gap between relatively rotating refiner discs  
Apparatus for measuring the gap between pairs of relatively rotating refiner discs is disclosed, including a transmitter incorporated into the face of a rotating refiner disc for producing a...
4672316 Method for calibrating a muzzle velocity measuring device  
In order to be able to carry out accurate measurements with a V 0 -measurement device, it is important that the desired distance between the two measurement coils of the measurement device be...
4663601 Magnetic switch housing assembly  
A housing assembly for a magnetically controlled element used to detect the angular position of a rotatable shaft includes at least one cavity for holding a corresponding number of insertable...
4654589 Apparatus and method for identifying a reference location for a work piece  
A referencing member capable of generating an oscillating magnetic field is placed at the inside surface of a layup mandrel. A locating member, comprising a plurality of spaced electrical coils is...
4652821 Device including selectively actuatable sensors and a multiplexer-demultiplexer for contact-free positional measurement of electronic position indicators  
Given a device for contact-free position measurement, a movable or resting part that represents a load in an alternating field or that is designed as an element emitting field lines is spatially...
4646012 Digital, electromagnetic rod position indicator with precisely controlled transitions between digital states  
A digital rod position indicator having discrete coils spaced along the travel path of an elongated magnetically permeable member stores in digital form compensation signals for automatically...
4646010 Fluidically mounted apparatus for measuring the torque in a shaft  
A transmitter arrangement for a rotatable shaft (1) includes a rotor (2) in the form of a cog-wheel arrangement (7,8) which is to be mounted on the shaft (1). A stator (6a-6d) is rigid relative to...
4646088 Magnetic encoder system  
A magnetic encoder system comprising a rotary disk formed thereon with a succession of discrete magnetic encoding units each of which consists of a pair of opposed magnetic poles (N, S) and extends...
4646087 Inductively coupled position detection system  
An inductively coupled position sensing system wherein voltages induced in plural stationary sensor coils are combined and synchronously detected. Variation in the induced voltages results from...
4631478 Method and apparatus for using spring-type resistive elements in a measurement bridge circuit  
A method for converting a movement into an analog or digital variable, in particular into an electrical voltage, and an apparatus for performing the method are proposed. The apparatus includes at...
4629983 Digital rod position detector system  
Coils placed at spaced locations along the path of an axially movable magnetically permeable and/or electrically conductive rod, which changes the impedance of each coil as it passes through, are...
4626621 Circuit for generating a position in digital form  
A circuit for generating a position signal has a detector having a detecting coil whose inductance varies in accordance with the position of an object which generates a first pulse response signal...
4608550 Electric signal transmission system on a road vehicle  
Communication of electric signals between a control board mounted on a steering wheel but held in stationary state irrespective of a rotation of the steering wheel and an electric controller...
4591788 Magnetic field sensing device  
A magnetic field sensing device for sensing low levels of magnetic intensity is composed of a ribbon-shaped strip of amorphous magnetic material having at least one twist along the length thereof...
4587485 Evaluation arrangement for a digital incremental transmitter  
An evaluation arrangement for a digital incremental transmitter of the type wherein two phase-shifted sinusoidal voltages of the same period are produced generates a periodic triangular voltage...
4584529 Method and apparatus for discriminating between genuine and suspect paper money  
There is disclosed a paper money discriminating method comprising the steps of scanning and detecting magnetism contained in a print portion in a predetermined area of paper money, and checking...
4574286 Controller of magnetically saturated type having programmed output characteristic  
A position sensor for producing a variable electrical output signal in response to manipulation of a quadrant lever or the like. A pair of tubes of equal length made of magnetically saturable...
4558320 Apparatus for the contactless transmission of data or the like between two relatively rotating parts  
A first stationary part or component possesses a first conductor arrangement which is coupled in a contactless manner with a second conductor arrangement located upon a second part or component....
4556885 System for detecting position or speed  
A system for detecting mechanical movement of a body under detection formed of: a synchro generator having a primary and a secondary windings, one of which is capable of being coupled to the body;...
4551715 Tachometer and rotor identification apparatus for centrifuges  
An apparatus for determining the actual speed and maximum safe speed of a centrifuge rotor. A single circular array of equally spaced coding elements of two clearly distinguishable types is...
4543953 Analog telemetry system for biomedical implant  
An analog data transmission circuit for a biomedical implant employs a linear amplifier to modulate the impedance of a resonant circuit tuned to an externally generated constant carrier frequency....
4538465 Electronic transmitter for transmitting pressure values of industrial process fluids  
An electronic transmitter for transmitting pressure values of industrial process fluids includes an inductive sensor employing a measuring diaphragm which is movable as a function of the pressure...
4532932 Implant communication system with frequency shift means  
An implant communication system is disclosed for use with an enclosure having a tuned coil mounted therein that is implanted in a patient. A low impedance shunt circuit is connected across the...
4532510 Measuring apparatus having a sensor located remotely from its electricity power supply  
The measuring apparatus comprises a sensor (11) having a first electrical characteristic (balance of inductance) which is directly modifiable by the magnitude of a quantity or characteristic to be...
4507601 Lever stroke control  
A manual controller for producing an output signal for control of hydraulic valves and the like. The controller has a quadrant lever consisting of an inner tube connected to a shaft and an outer...
4471355 Method and apparatus for sensing current in high voltage conductors  
Alternating current carried in a high voltage conductor is sensed by a toroidal coil to produce a first low level signal representative of the alternating current signal. Transmitter means...
4466002 Variable reluctance position transducer  
A transducer includes a winding in a magnetic circuit including a magnet, a pole-piece and a disc which has pairs of protuberances in its periphery, each pair being connected by a web of lesser...
4463333 Transformer-type position transducer  
A position-measuring transformer having a pair of confronting relatively movable supports (12, 14) upon the confronting faces (16, 18) of which lie patterns of conductors is disclosed (26, 50). The...
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...
4450431 Condition monitoring system (tire pressure)  
A monitoring system for monitoring the condition in a vehicle wheel mounted tire. The system includes first and second LC circuits disposed within the tire and interconnected by a diode multiplier...
4443795 Remote indicator for displaying transmitted data by angular displacement  
A remote indicator displays data contained in a transmitted signal by angular displacement of a rotor. In essence, the indicator comprises a rotatably mounted magnetic rotor, a plurality of...
4429308 Electrode or pole piece array for creating prescribed electric or magnetic fields  
A circular array of equally spaced, interleaved, reference elecrodes or pole pieces are arranged about the center of the array for producing an electric or magnetic field in which the resultant...
4409586 Tire condition monitor converter  
A tire condition monitor converter including a plurality of wires extending about a tire rim and defining a first coil electrically connected to a first capacitor to define a first LC circuit and a...
4406999 Inductive sensor  
A sensor which conveys a displacement of an object into a change of inductance with which associated circuitry can be used for monitoring the displacement of the object. The sensor includes a coil...
4404559 Rotative power and signal coupling  
A rotative coupling allows the inductive transmission of power and the transmission of informational signals between a stationary part and a hollow, rotating part. The informational signals are...
4403218 Portable instrumentation telemetry device  
A shaft mountable, portable, low frequency FM transmission device for comicating rotating shaft mounted sensor information to a stationary platform. It includes a generally cylindrical, dynamically...
Matches 151 - 200 out of 388 < 1 2 3 4 5 6 7 8 >