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6396results about "Converting sensor output" patented technology
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Fiber optic position and shape sensing device and method relating thereto
The present invention is directed toward a fiber optic position and shape sensing device and the method of use. The device comprises an optical fiber means. The optical fiber means comprises either at least two single core optical fibers or a multicore optical fiber having at least two fiber cores. In either case, the fiber cores are spaced apart such that mode coupling between the fiber cores is minimized. An array of fiber Bragg gratings are disposed within each fiber core. A broadband reference reflector is positioned in an operable relationship to each fiber Bragg grating wherein an optical path length is established for each reflector / grating relationship. A frequency domain reflectometer is positioned in an operable relationship to the optical fiber means. In use, the device is affixed to an object. Strain on the optical fiber is measured and the strain measurements correlated to local bend measurements. Local bend measurements are integrated to determine position or shape of the object.
Owner:LUNA INNOVATIONS
Magnetic rotary system for input devices
InactiveUS20110025311A1Easy to manufactureMagnetization is simpleDigital data processing detailsUsing electrical meansMagnetizationEngineering
Embodiments of the present invention include a roller for an input device, where the roller's absolute angular position is measured by a magnetic encoder. A magnet is attached to the roller, possibly inside the roller so as to make the embodiment more compact. In one embodiment, the magnetization is simple and low cost. Further, tight tolerances are not required, and such a system is easy to manufacture. In one embodiment, the sensor is covered by any non-ferromagnetic material, to protect it from foreign particles, and to reduce ESD. In one embodiment, the wheel consumes much less power than conventional wheels in input devices. In one embodiment, the tilting of the wheel is measured using the same sensor that is used for measuring the rotation of the wheel. In one embodiment, a ratcheting feel provided to the user when rotating the wheel is synchronized with the rotation signal.
Owner:LOGITECH EURO SA
Thin-type gear motor and muscle force assisting device using thin-type gear motor
InactiveUS20160069449A1Small sizeReduce weightToothed gearingsSignalling system detailsMuscle forceGear wheel
In a thin-type gear motor and a muscle force assisting device that uses the thin-type gear motor in which high torque output is achieved, thinness and size and weight reduction are achieved, and further size reduction is achieved by an absolute sensor that is capable of detecting a rotation angle of an output shaft after speed reduction and is situated in a space that is conventionally not used.
Owner:COPAL ELECTRON CO LTD
Photoluminescent fibers, compositions and fabrics made therefrom
Disclosed are photoluminescent fibers containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum. Also disclosed are the use of the inventive fibers, fabrics made therefrom, and objects containing the fiber.
Owner:PERFORMANCE INDICATOR LLC
Smart instrument tray RFID reader
ActiveUS7362228B2Accurate and rapid trackingReduce processing costsSurgical furnitureDispensing apparatusEngineeringWorkstation
A radio frequency identification (RFID) workstation reader for RFID-enabled surgical instruments and surgical instrument trays and a method of using a RFID workstation reader to read RFID-enabled surgical instruments and surgical instrument trays is disclosed. The method, apparatus, and system enable individual instruments or a surgical instrument tray containing several surgical instruments to be quickly and efficiently inventoried and tracked. An instrument or instrument tray is placed on the workstation reader. An RF field generated by a plurality of antennae, causes RFID tags embedded in or attached to the instrument or instrument tray to emit a signal containing item specific identification information stored in the tags. The information is received by a control circuit and passed to a computer for data analysis. A status LED is illuminated on the workstation reader based on the results of the data analysis. The method, apparatus, and system can track, inspect, and verify inbound and outbound surgical instrument kits, and help to assess the surgical instruments' and trays' duty life cycle usage.
Owner:WARSAW ORTHOPEDIC INC
Pulser with double-bearing position encoder for non-invasive physiological monitoring
ActiveUS9891079B2Insufficient stabilityImprove stabilityDiagnostic recording/measuringSensorsPhysiological monitoringEngineering
A double-bearing position encoder has an axle stabilized within a housing via two bearings disposed on opposite walls of the housing. The axle is in communications with a rotating cam. The cam actuates a pulser so as to generate an active pulse at a tissue site for analysis by an optical sensor. The axle rotates a slotted encoder wheel or a reflective encoder cylinder disposed within the housing so as to accurately determine the axle position and, hence, the active pulse frequency and phase.
Owner:MASIMO CORP
Shaft mounted energy harvesting for wireless sensor operation and data transmission
InactiveUS20050017602A1Provide informationEfficiently transferring energyBatteries circuit arrangementsPiezoelectric/electrostriction/magnetostriction machinesLine sensorRotational axis
A device for monitoring a rotating shaft is provided. The device measures strain in the shaft and provides angular velocity and torque in the shaft. The device includes a sensor, sensor conditioning circuitry, a microprocessor, and a transmitter, all located on a rotating shaft. The device obtains power by harvesting mechanical energy of the rotating shaft itself. Coils are provided rotating with the shaft and permanent magnets are mounted adjacent the rotating shaft so electrical energy is induced in the coils as they rotate through the magnetic field of the permanent magnets. A battery or capacitor is connected to the coils for storing energy. A microprocessor is connected to the sensors, the storage device, and the transmitter for managing power consumption and for monitoring the amount of electrical energy stored in the storage device and for switchably connecting the storage device to the transmitter when the stored energy exceeds a threshold.
Owner:LORD CORP
Fiber optic position and shape sensing device and method relating thereto
The present invention is directed toward a fiber optic position and shape sensing device and the method of use. The device comprises an optical fiber means. The optical fiber means comprises either at least two single core optical fibers or a multicore optical fiber having at least two fiber cores. In either case, the fiber cores are spaced apart such that mode coupling between the fiber cores is minimized. An array of fiber Bragg gratings are disposed within each fiber core and a frequency domain reflectometer is positioned in an operable relationship to the optical fiber means. In use, the device is affixed to an object. Strain on the optical fiber is measured and the strain measurements correlated to local bend measurements. Local bend measurements are integrated to determine position and / or shape of the object.
Owner:INTUITIVE SURGICAL OPERATIONS INC
Fiber Optic Position and Shape Sensing Device and Method Relating Thereto
ActiveUS20070065077A1Improve spatial resolutionImprove accuracyRadiation pyrometryEndoscopesFiberGrating
The present invention is directed toward a fiber optic position and shape sensing device and the method of use. The device comprises an optical fiber means. The optical fiber means comprises either at least two single core optical fibers or a multicore optical fiber having at least two fiber cores. In either case, the fiber cores are spaced apart such that mode coupling between the fiber cores is minimized. An array of fiber Bragg gratings are disposed within each fiber core and a frequency domain reflectometer is positioned in an operable relationship to the optical fiber means. In use, the device is affixed to an object. Strain on the optical fiber is measured and the strain measurements correlated to local bend measurements. Local bend measurements are integrated to determine position and / or shape of the object.
Owner:INTUITIVE SURGICAL OPERATIONS INC
Novel folded Mach-Zehnder interferometers and optical sensor arrays
The invention provides novel “folded” Mach-Zehnder interferometers (“folded” MZI's), methods for making folded MZI's, and systems and devices incorporating them. The novel folded MZI's are elaborated from conventional MZI structures by cutting across the interferometer arms of a conventional MZI structure and creating reflectors on the exposed ends of the interferometer arms to form two “folded” MZI's from a single conventional Mach-Zehnder interferometer structure. The novel folded MZI's show promise as sensors having a reduced size and enhanced sensitivity relative to sensors incorporating conventional Mach-Zehnder Interferometers.
Owner:GENERAL ELECTRIC CO
Double-bearing position encoder
ActiveUS20150045637A1Insufficient stabilityImprove stabilityDiagnostic recording/measuringSensorsEngineeringCam
A double-bearing position encoder has an axle stabilized within a housing via two bearings disposed on opposite walls of the housing. The axle is in communications with a rotating cam. The cam actuates a pulser so as to generate an active pulse at a tissue site for analysis by an optical sensor. The axle rotates a slotted encoder wheel or a reflective encoder cylinder disposed within the housing so as to accurately determine the axle position and, hence, the active pulse frequency and phase.
Owner:MASIMO CORP
Rotation-angle-detecting apparatus, rotating machine, and rotation-angle-detecting method
ActiveUS20090206827A1High resolutionAccurate measurementUsing electrical meansConverting sensor outputMagnetic polesSpin valve
A rotation-angle-detecting apparatus comprising a magnet rotor having 4 or more magnetic poles on the surface, and sensor device for detecting magnetic flux from the magnet rotor, and an electronic circuit for outputting a signal representing the rotation angle of the magnet rotor using pluralities of signals obtained from the sensor device, the sensor device having pluralities of spin-valve, giant-magnetoresistive devices for outputting two or more different phase signals from a rotating magnetic field near the rotating magnet, each spin-valve, giant-magnetoresistive device having a pinned layer and a free layer, the magnetization direction of the pinned layer being fixed, and the magnetization direction of the free layer rotating depending on a magnetic field direction, pluralities of the spin-valve, giant-magnetoresistive devices comprising a first spin-valve, giant-magnetoresistive device having a reference magnetic-field-sensing direction, and a second spin-valve, giant-magnetoresistive device having a magnetic-field-sensing direction different from that of the first spin-valve, giant-magnetoresistive device.
Owner:HITACHI METALS LTD
Fiber optic instrument sensing system
A medical instrument system comprises an elongate instrument body; an optical fiber coupled in a constrained manner to the elongate instrument body, the optical fiber including one or more Bragg gratings; a detector operably coupled to a proximal end of the optical fiber and configured to detect respective light signals reflected by the one or more Bragg gratings; and a controller operatively coupled to the detector, wherein the controller is configured to determine a geometric configuration of at least a portion of the elongate instrument body based on a spectral analysis of the detected reflected portions of the light signals.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Capacitive Position Sensor
ActiveUS20100045632A1Increase the number ofGood light transmissionTransmission systemsDigital data processing detailsCapacitanceCapacitive coupling
A capacitive position sensor has a two-layer electrode structure. Drive electrodes extending in a first direction on a first plane on one side of a substrate. Sense electrodes extend in a second direction on a second plane on the other side of the substrate so that the sense electrodes cross the drive electrodes at a plurality of intersections which collectively form a position sensing array. The sense electrodes are provided with branches extending in the first direction part of the way towards each adjacent sense electrode so that end portions of the branches of adjacent sense electrodes co-extend with each other in the first direction separated by a distance sufficiently small that capacitive coupling to the drive electrode adjacent to the co-extending portion is reduced. Providing sense electrode branches allow a sensor to be made which has a greater extent in the first direction for a given number of sense channels, since the co-extending portions provide an interpolating effect. The number of sense electrode branches per drive electrode can be increased which allows a sensor to be made which has ever greater extent in the first direction without having to increase the number of sense channels.
Owner:NEODRON LTD +1
Shaft mounted energy harvesting for wireless sensor operation and data transmission
InactiveUS7256505B2High impedanceEnergy efficiencyBatteries circuit arrangementsPiezoelectric/electrostriction/magnetostriction machinesStored energyAngular velocity
A device for monitoring a rotating shaft is provided. The device measures strain in the shaft and provides angular velocity and torque in the shaft. The device includes a sensor, sensor conditioning circuitry, a microprocessor, and a transmitter, all located on a rotating shaft. The device obtains power by harvesting mechanical energy of the rotating shaft itself. Coils are provided rotating with the shaft and permanent magnets are mounted adjacent the rotating shaft so electrical energy is induced in the coils as they rotate through the magnetic field of the permanent magnets. A battery or capacitor is connected to the coils for storing energy. A microprocessor is connected to the sensors, the storage device, and the transmitter for managing power consumption and for monitoring the amount of electrical energy stored in the storage device and for switchably connecting the storage device to the transmitter when the stored energy exceeds a threshold.
Owner:LORD CORP
Capacitive Touch Screen with Noise Suppression
ActiveUS20100044122A1Reduce sensitivityImprove linearityTransmission systemsDigital data processing detailsDisplay deviceNoise suppression
A capacitive touch sensor wherein the touch sensitive panel has drive electrodes arranged on the lower side of a substrate and sense electrodes arranged on the upper side. The drive electrodes are shaped and dimensioned to substantially entirely cover the touch sensitive area with individual drive electrodes being separated from each other by small gaps, the gaps being so small as to be practically invisible. The near blanket coverage by the drive electrodes also serves to screen out interference from noise sources below the drive electrode layer, such as drive signals for an underlying display, thereby suppressing noise pick-up by the sense electrodes that are positioned above the drive electrodes.
Owner:NEODRON LTD +1
Operating method for a sensor and a control facility communicating with the sensor
InactiveUS8140299B2Minimize timeAvoid testingTesting/calibration apparatusDigital computer detailsComputer hardwareEngineering
Owner:SIEMENS AG
Methods and apparatus for magnetic article detection
ActiveUS7362094B2Reduce errorsUsing electrical meansDevices using electric/magnetic meansControl signalAutomatic gain control
Apparatus and methods for detecting passing magnetic articles using a first, True Power On State (TPOS) detector during a first time interval and transitioning to a second, running mode detector after the first time interval, when the output of the second detector is accurate. A phase comparator is responsive to the output signal of the first and second detectors and provides a control signal indicative of a change in the phase relationship between the two output signals. An output switch controlled by the phase comparator provides, as the detector output signal, the first detector output signal during the first time interval and the second detector output signal thereafter. A threshold signal associated with the TPOS detector is at a fixed level during a first portion of the first time interval and is adjusted during a second portion of the first time interval in response to an automatic gain control circuit in order to reduce the phase error associated with transitioning from the TPOS detector to the running mode detector. Also described are apparatus and methods for updating a running mode threshold signal that is a percentage of the peak-to-peak magnetic field sensor signal, so that unnecessary update events are reduced.
Owner:ALLEGRO MICROSYSTEMS INC
Multi-axis joystick and transducer means therefore
InactiveUS20050162389A1Reduce noiseLow costProgramme controlManual control with multiple controlled membersJoystickTransducer
The invention relates to improved multi-axis joysticks and associated multi-axis optical displacement measurement means. The displacement measuring means may include one or more light emitters and one or more light detectors, preferably mounted in a planar hexagonal array. The relative position of an adjacent movable reflector assembly can be measured in six degrees of freedom by variations in detected light amplitude. Various ergonomic configurations of six axis joystick embodiments which may be facilitated by the compact design of the transducer means are disclosed. Means for dynamically adjusting coordinate transformations for construction machinery control are also disclosed.
Owner:OBERMEYER HENRY K +1
Movable body system, pattern formation apparatus, exposure apparatus and exposure method, and device manufacturing method
InactiveUS20080094594A1Small sizeImprove accuracyPhotomechanical apparatusSemiconductor/solid-state device manufacturingGratingLight beam
A laser beam emitted by an encoder main body enters a wafer table via a PBS from the outside, and reaches a grating at a point that is located right under exposure area, and is diffracted by the grating. Then, by receiving interference light of a first polarized component that has returned from the grating and a second polarized component reflected by the PBS, positional information of the wafer table is measured. Accordingly, because the first polarized component, which has passed through PBS passes through the wafer table until it is synthesized with the second polarized component again, does not proceed through the atmosphere outside, position measurement of the wafer table can be performed with high precision without the measurement beam being affected by the fluctuation of the atmosphere around the wafer table.
Owner:NIKON CORP
Measurement system, lithographic apparatus and method for measuring a position dependent signal of a movable object
ActiveUS20080240501A1Improve accuracyLow accuracySemiconductor/solid-state device testing/measurementPhotomechanical apparatusPosition dependentCompensating movements
An encoder-type measurement system is configured to measure a position dependent signal of a movable object, the measurement system including at least one sensor mountable on the movable object a sensor target object mountable on a substantially stationary frame, and a mounting device configured to mount the sensor target object on the substantially stationary frame. The measurement system further includes a compensation device configured to compensate movements and / or deformations of the sensor target object with respect to the substantially stationary frame. The compensation device may include a passive or an active damping device and / or a feedback position control system. In an alternative embodiment, the compensation device includes a gripping device which fixes the position of the sensor target object during a high accuracy movement of the movable object.
Owner:ASML NETHERLANDS BV
Capacitive Position Sensor
InactiveUS20070291016A1Improve reliabilityReduce power consumptionConverting sensor outputInput/output processes for data processingMicrocontrollerCapacitance
A capacitive position sensor comprising a preferably annular sensing path, the sensing path having one or more virtual buttons designated along its length. The sensing path has a plurality of terminals connected to it to subdivide it into a plurality of sections, each terminal providing a sensing channel for a signal indicative of capacitance. The sensing channels provide the signals to a processor, preferably a microcontroller, that is operable to distinguish between a user making a touch to actuate one of the virtual buttons, and a touch to perform a scrolling function. To be determined as a scroll, it is required that there is a succession of detects which span over at least a threshold distance, for example an angular or linear distance. To be determined as a touch, it is required that there is a succession of detects that all lie within one of the pre-assigned virtual button positions.
Owner:ATMEL CORP
Flow meter
ActiveUS20150002667A1Reduce liquid volumeAmount being removedImage enhancementImage analysisOptical distortionField of view
An flow meter includes a coupler, a support member, an image sensor, and one or more processors. The coupler is adapted to couple to a drip chamber. The support member is operatively coupled to the coupler. The image sensor has a field of view and is operatively coupled to the support member. The image sensor is positioned to view the drip chamber within its field of view. The one or more processors are operatively coupled to the image sensor to receive data thereform. The one or more processors (1) receive image data from the image sensor, and (2) determine an existence of a free flow condition by identifying an optical distortion of an area behind the free flow condition within the drip chamber using the received image data.
Owner:DEKA PROD LLP
Flow Meter
ActiveUS20150002668A1Reduce liquid volumeImage enhancementImage analysisOptical distortionField of view
An flow meter includes a coupler, a support member, an image sensor, and one or more processors. The coupler is adapted to couple to a drip chamber. The support member is operatively coupled to the coupler. The image sensor has a field of view and is operatively coupled to the support member. The image sensor is positioned to view the drip chamber within its field of view. The one or more processors are operatively coupled to the image sensor to receive data thereform. The one or more processors (1) receive image data from the image sensor, and (2) determine an existence of a free flow condition by identifying an optical distortion of an area behind the free flow condition within the drip chamber using the received image data.
Owner:DEKA PROD LLP
Flow Meter
ActiveUS20150002677A1Reduce liquid volumeImage enhancementImage analysisOptical distortionField of view
An flow meter includes a coupler, a support member, an image sensor, and one or more processors. The coupler is adapted to couple to a drip chamber. The support member is operatively coupled to the coupler. The image sensor has a field of view and is operatively coupled to the support member. The image sensor is positioned to view the drip chamber within its field of view. The one or more processors are operatively coupled to the image sensor to receive data thereform. The one or more processors (1) receive image data from the image sensor, and (2) determine an existence of a free flow condition by identifying an optical distortion of an area behind the free flow condition within the drip chamber using the received image data.
Owner:DEKA PROD LLP
Devices and arrangements for performing coherence range imaging using a common path interferometer
ActiveUS7995210B2InterferometersMaterial analysis by optical meansElectricityElectromagnetic radiation
Owner:THE GENERAL HOSPITAL CORP
Magnet position locator
InactiveUS20090128139A1Well formedUsing electrical meansConverting sensor outputTriangulationSubject matter
In one illustrative embodiment, the present subject matter is directed to a device adapted to determine the position of a target magnet, wherein the device includes a pair of orthogonal magnetic field sensors laterally disposed along an axis that is substantially transverse to an axis defined by one that is nominally parallel to the direction of the target magnet. In another illustrative embodiment, the subject matter is adapted for use on an automated guided vehicle (AGV), whereby detection of the target magnet's location facilitates correction of the vehicle's heading and position while traversing an AGV system. The present subject matter is also directed to a method whereby the position of a target magnet may be determined by triangulation, utilizing trigonometric calculations based upon the strength and direction of the magnet field to determine the magnet's position relative to the magnetic field sensors.
Owner:JOHN BEAN TECH CORP
Technique for increasing the sensitivity of capacitive sensor arrays
ActiveUS20080024455A1Converting sensor outputInput/output processes for data processingSensor arrayEngineering
A technique for operating a capacitive sensor array. The technique includes logically grouping capacitance sensors of an array of capacitance sensors into sensor groups. The sensor groups each include at least two capacitance sensors of the array of capacitance sensors. Values indicative of a capacitance for each of the sensor groups are measured. The measured values are then analyzed to determine a location of a user interaction with the array of capacitance sensors.
Owner:CYPRESS SEMICON CORP
Disposable and trimmable wireless pressure sensor
InactiveUS7146861B1Easy to understandFluid pressure measurement using piezo-electric devicesFluid pressure measurement using inductance variationEngineeringInductor
A disposable pressure sensor includes a substrate and a pressure diaphragm formed upon the substrate. A sensor coil can be provided, comprising a capacitor and an inductor formed on the substrate and surrounded by the pressure diaphragm. The ferrite core is located proximate to the sensor coil, such that when the pressure diaphragm is exposed to a pressure, the diaphragm moves close to the inductor or the capacitor, thereby resulting in a change in the capacitor or the inductor and an indication of pressure. The capacitor can be implanted as an adjustable, trimmable or variable capacitor. The inductor may also be provided as an adjustable or variable inductor and can include the use of a variable capacitor and a PVDF based piezoelectric transducer. When the PVDF layer is under pressure, it can generate an electric field across the interdigital transducer and transmit a signal thereof through an antenna.
Owner:HONEYWELL INT INC
Devices and arrangements for performing coherence range imaging using a common path interferometer
ActiveUS20060109478A1Path length mismatchDispersion mismatchInterferometersMaterial analysis by optical meansElectromagnetic radiationLength wave
Devices, arrangements and apparatus adapted to propagate at least one electro-magnetic radiation are provided. In particular, a probe housing, a sample arm section and a reference arm section can be included. For example, the sample arm section can be at least partially situated within the probe housing, and configured to propagate a first portion of the electro-magnetic radiation that is intended to be forwarded to a sample. The reference arm section can be at least partially situated within the probe housing, and configured to propagate a second portion of the electro-magnetic radiation that is intended to be forwarded to a reference. In addition or as an alternative, an interferometer may be situated within the probe housing. The first and second portions may travel along substantially the same paths, and the electro-magnetic radiation can be generated by a narrowband light source that has a tunable center wavelength. Further, the first and second portions may be at least partially transmitted via at least one optical fiber. A splitting arrangement may be provided which splits the electro-magnetic radiation into the first and second portions, and positioned closer to the sample than to the source of the electro-magnetic radiation, and the first and second portions may be adapted to propagate in different directions. An apparatus may be provided that is configured to control an optical path length of the second portion.
Owner:THE GENERAL HOSPITAL CORP
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