Class 250/231.11 - Actuated by gauge element deflection

Subclass of Class 250 - Radiant energy
Definition: Subject matter wherein displacement of a gauge component,
No. of patents: 37
Last issue date: 11/17/2009

Number	Title	Issue Date
7619207	Lithographic apparatus and device manufacturing method The present invention relates to a method for calibrating a grating of an encoder measurement system between two adjacent calibrated locations, the method includes moving one of a sensor object including an encoder-type sensor and a grating along the other one of th...	11/17/2009
7538312	Method for determining the position of a first moving component relatively to a second component and device for applying said method A method for determining the position of one of two components in relative motion with respect to each other, using optical means, comprises: directing at least one light beam emitted by a light source attached to one component tow...	05/26/2009
7263870	Gauge calibration method The instrument panel gauge assembly includes an applique having gauge graphics printed thereon and a needle pointer for a gauge assembly positioned adjacent thereto. A transparent chaplet is formed within the applique to allow light to pass through. The needle passe...	09/04/2007
7232989	Transverse optical accelerator and generalized optical vortices A method and system for generating modulated optical vortices. Optical vortices can be used for a variety of applications, such as applying controlled torque or controlled force patterns to objects from a few nanometers to hundreds of micrometers in size. Numerous o...	06/19/2007
7109473	Transverse optical accelerator and generalized optical vortices A method and system for generating modulated optical vortices. Optical vortices can be used for a variety of applications, such as applying controlled torque or controlled force patterns to objects from a few nanometers to hundreds of micrometers in size. Numerous o...	09/19/2006
6867411	Optically rebalanced accelerometer An optical accelerometer for detecting an acceleration of a proof mass includes a source of optical radiation for generating a pair of beams of output radiation. The pair of beams of optical radiation exerts radiation pressure on the proof mass, so as to maintain th...	03/15/2005
6741184	Pointer position detection using light emitting diodes An apparatus and method sensing the absolute position of a gauge. A pointer having a predefined rotation with a circular travel pattern. At least one light emitting diode that generates an optical signal. An optical sensor placed in a fixed position along the circul...	05/25/2004
6495820	Sensor apparatus and method for sensing angular rotation of an object using light reflected off a rotor and bifurcation compensation An apparatus (100) for sensing angular rotation includes a rotor (102) that is rotatable about an axis (104). The rotor (102) has an outer periphery (e.g., cylindrical outer sidewall 106) with a plurality of reflective facets (e.g., 108A-108J). Each junct...	12/17/2002
6157311	Portable electro-magnetic radiation sensor warning device A portable, compact, freestanding sensor housing is configured to be stably and removably affixed relative to a metering device having a movable indicator element. The housing includes a transmitter for emitting electro-magnetic radiation and a receiver f...	12/05/2000
6087959	Optically coupled gas meter A gas meter using optical communication. The meter includes a shaft that is rotated by a flow of gas, a first sensor for sensing a first rotational angle of the shaft, a second sensor for sensing a second rotational angle of the shaft, a first light sourc...	07/11/2000
5698847	Optical-modulation-type sensor and process instrumentation apparatus employing the same An optical-modulation-type sensor comprises an input condenser lens for collecting light from a light source, a polarizer for linearly polarizing the light from the input condenser lens, a light-transmissive piezo-oscillator which is provided with an osci...	12/16/1997
5532479	Temperature, pressure, vibration or humidity sensor based on reflected light from a bimetallic, plastic or dehumidifying material A multi-function sensor using a semiconductor laser capable of sensing a value of a measurement object such as temperature, humidity, pressure or vibration on the basis of a variation in the distance between a measurement object medium adapted to respond ...	07/02/1996
5528936	Optoelectronic spatial acceleration sensor An acceleration sensor device capable of a variant response to acceleration(s) as they may occur in all directions in any axis. The sensor may further discriminate, filter, or target a specific envelope of accelerations. Detection is accomplished through ...	06/25/1996
5428446	Measurement instrument with interferometer and method A ball bar gage for obtaining the accuracy of numerical control machines and the like including telescoping means integrated with an interferometer and the method of measuring the distances between two locations including an initialization process that as...	06/27/1995
5426297	Multiplexed Bragg grating sensors A measurement system for fiber sensors includes a broadband light source 11 providing continuous light which is launched into a fiber 20 having a plurality (or string) of Bragg grating sensors 24, 28, 34. Each sensor has a predetermined central reflection...	06/20/1995
5311014	Optical transducer for measuring pressure Differential displacement is optically detected by independent movement of either a collimated light source or a dual element photosensitive detector. Relative movement between the detector or light source generates a signal proportional to the amount of ...	05/10/1994
5303921	Jammed shuffle detector The present invention provides a floating jammed shuffle detector for use in a card shuffling machine. The detector has a body with a card contacting portion and a sensor interactive portion. A detector housing and a photosensor are provided. The sensor i...	04/19/1994
4927226	Multiplexer for high power CW lasers Apparatus for multiplexing a coherent high power CW laser beam has a mirror mounted on a galvanometer to interrupt the laser beam and another mirror mounted on another galvanometer to deflect the laser beam to a selected pair of optical fibers. The other ...	05/22/1990
4777360	Umbra/penumbra detector A device which monitors the characteristics of an image cast upon a radiation sensitive substrate. This includes a shadow casting object or mask and at least one source of radiation disposed above the object or mask so that the image cast on the substrate...	10/11/1988
4697077	Vane encoder assembly for adjusting an optical encoder in a data storage device Accurate gap adjustments in an optical encoder used in a magnetic disk drive are achieved within a vane encoder assembly which incorporates a four-bar linkage. The optical encoder includes a fixed reticle and movable vane disposed between a light source a...	09/29/1987
4636637	Method and apparatus for detecting motion through a transparent enclosure, with spurious information detecting and compensating means An electro-optical encoder is disclosed of the type used for reading utility meters. The encoder includes at least one light source for directing light onto the edge of the rotating disk of the utility meter. At least one sensor receives information refle...	01/13/1987
4634859	Optical encoder with two photosensors An optical encoder for indicating revolutions of a shaft includes two phototransistors positioned to be energized concurrently by light from a light source, a barrier rotated by the shaft to shade the photosensors from the light source during a portion of...	01/06/1987
4631539	Digital pointer position detector A mechanical dial indicating gauge or meter that, without mechanical loading, optoelectronically detects and encodes the pointer position as a digital signal by use of a technique of distributed point position latching. Counter means drives a circuit whic...	12/23/1986
4626682	Angle measuring device An improved angle measuring device in which rotational irregularity in the form of two cycles or more per rotational cycle of the motor driving device is compensated for completely. A period of time T1 required for a cutout formed in the periph...	12/02/1986
4609817	Optical shaft position sensor An optical sensor for determining the position of a rotating shaft, comprised of a first and second light deflecting means, a light sensing means, and a means for providing a source of light. The second means for deflecting light is mounted on the shaft a...	09/02/1986
4571995	Digital readout indicator of oxygen usage, pressure and flow A digital readout and display adapted for use with a tank of oxygen under pressure provides pressure regulation, discerning of the pressure in the tank and consumption of the oxygen. A small battery within a case member powers this display. The readout de...	02/25/1986
4550316	Stylus mouse A mouse comprises a housing for sliding movement on a nonspecific work surface, and a stylus depending from the housing and contacting the work surface. The stylus bends and vibrates during movement, and the direction and distance of movement are derived ...	10/29/1985
4417238	Alarm modification for meteorological instrument An alarm modification kit for adding an electrical alarm signal feature to a mechanical recording type meterorological instrument. The kit includes a counterbalanced shutter arm adapted to be secured to the output shaft of the instrument which carries the...	11/22/1983
4331867	Photoconductive instrument The invention is directed to an instrument control apparatus capable of regulating the flow of electric current by detecting relative movement between an indicator and a control zone. A light source is positioned close to the control zone so that illumina...	05/25/1982
4300548	System for detecting position of gauge pointer A system is disclosed for detecting the position of the pointer of a gauge. The system includes a stationary light source which is positioned adjacent the pointer. A lens receives the light from the light source and redirects the light in at least one elo...	11/17/1981
4286151	Device for guiding the displacement of a vehicle and in particular an agricultural machine The device comprises in a preferred embodiment, on one hand, an orienting system comprising a compass provided with two reflecting faces angularly offset 180°, an orientable optical system for detecting the angular deviation of the reflecting faces relat...	08/25/1981
4275393	Method and apparatus for sensing pressure A pressure sensing device has a light source, and an optical sensor for externally sensing a predetermined change in the pressure within a sealed system which has a conventional gauge. Illumination from the light source is reflected off of the gauge dial ...	06/23/1981
4255655	Temperature sensing switch with an optical sensor A temperature sensing switch is disclosed which has a needle moving in response to the temperature within a translucent case. On the outside of this case are mounted one or a plurality of movable needle position detectors, in each of which a light emitter...	03/10/1981
4214155	System for detecting position of gauge pointer A system is disclosed for detecting the position of the pointer of a gauge. The system includes a stationary light source which is positioned adjacent the pointer. A lens receives the light from the light source and redirects the light in at least one elo...	07/22/1980
4107661	Electrooptic meter pointer position detector A device is provided for a meter having an indicator, e.g. a pointer, and which detects the presence or absence of the meter pointer at one or more set points or between two set points. The device does not alter the operation of the meter and may be coupl...	08/15/1978
4087684	Fiber optics proportional control system A fiber optic feedback control system for controlling a motor having an output for driving a condition controlling device, is disclosed which comprises a fiber optic having a first flared end, a light source for supplying light to the first flared end, a ...	05/02/1978
3938890	Torque transducer utilizing differential optical sensing Torque stress on a stationary or rotating shaft is measured in a contactless fashion utilizing differential optical sensing means. A pair of light-controlling discs are attached to opposite ends of a torsioning section of the shaft. The combination of lig...	02/17/1976

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Class 250/231.11 - Actuated by gauge element deflection