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303 results about "Measurement station" patented technology
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Stationing is the fundamental system of measurement used for road layout and construction. Stations are reference points that are placed along the horizontal measurement of a route centerline or a baseline at some regular interval. Generally, the distance between two adjoining stations along a route is 100 feet.
Continuous analyte sensors and methods of making same
InactiveUS20110027458A1Low production costMinimize changesHot-dipping/immersion processesVacuum evaporation coatingAnalyteSolvent
Owner:DEXCOM
Continuous analyte sensors and methods of making same
InactiveUS20110024043A1Low production costMinimize changesHot-dipping/immersion processesPretreated surfacesAnalyteSolvent
Described here are embodiments of processes and systems for the continuous manufacturing of implantable continuous analyte sensors. In some embodiments, a method is provided for sequentially advancing an elongated conductive body through a plurality of stations, each configured to treat the elongated conductive body. In some of these embodiments, one or more of the stations is configured to coat the elongated conductive body using a meniscus coating process, whereby a solution formed of a polymer and a solvent is prepared, the solution is continuously circulated to provide a meniscus on a top portion of a vessel holding the solution, and the elongated conductive body is advanced through the meniscus. The method may also comprise the step of removing excess coating material from the elongated conductive body by advancing the elongated conductive body through a die orifice. For example, a provided elongated conductive body 510 is advanced through a pre-coating treatment station 520, through a coating station 530, through a thickness control station 540, through a drying or curing station 550, through a thickness measurement station 560, and through a post-coating treatment station 570.
Owner:DEXCOM
Continuous analyte sensors and methods of making same
InactiveUS20110027453A1Low production costMinimize changesHot-dipping/immersion processesPharmaceutical containersAnalyteSolvent
Described here are embodiments of processes and systems for the continuous manufacturing of implantable continuous analyte sensors. In some embodiments, a method is provided for sequentially advancing an elongated conductive body through a plurality of stations, each configured to treat the elongated conductive body. In some of these embodiments, one or more of the stations is configured to coat the elongated conductive body using a meniscus coating process, whereby a solution formed of a polymer and a solvent is prepared, the solution is continuously circulated to provide a meniscus on a top portion of a vessel holding the solution, and the elongated conductive body is advanced through the meniscus. The method may also comprise the step of removing excess coating material from the elongated conductive body by advancing the elongated conductive body through a die orifice. For example, a provided elongated conductive body 510 is advanced through a pre-coating treatment station 520, through a coating station 530, through a thickness control station 540, through a drying or curing station 550, through a thickness measurement station 560, and through a post-coating treatment station 570.
Owner:DEXCOM
Sorting/storage device for wafers and method for handling thereof
InactiveUS7077614B1Easy and less-expensive to produceReducing throughout capacitySemiconductor/solid-state device manufacturingCharge manipulationMeasurement stationBiomedical engineering
Sorting / storage device for wafers. A sorting device is provided in which at least two cassettes containing wafers may be present and the wafers are moved from one cassette to the other cassette or vice versa. If appropriate, a measuring station may be present in the sorting device. In the immediate vicinity of the sorting device, the cassettes are stored in a magazine which is designed for this purpose and the cassettes are moved using a handling device for cassettes.
Owner:ASM INTERNATIONAL
Analysis system and method for the analysis of a body fluid sample for an analyte contained therein
ActiveUS8114351B2Improve user friendlinessSimple and compact structureMaterial analysis by optical meansBurettes/pipettesAnalyteVariable Characteristic
Analysis system and method for the analysis of a body fluid sample for an analyte contained therein are disclosed. The analysis system has a dosing station for dosing a liquid into a test element through a sample supply opening, which reacts with a reagent system present in a sample analysis channel of the test element. The analysis system also has a measurement station for measuring a measurement variable characteristic of the reaction at the measuring zone of a test element for the analytical result. The test element also includes a separate flushing liquid supply opening and a flushing liquid collection chamber which are in fluid communication to one another via a flushing liquid channel. The flushing liquid channel and the sample analysis channel differ from one another in such a manner that a liquid flowing through the flushing liquid channel does not reach the measuring zone.
Owner:ROCHE DIAGNOSTICS OPERATIONS INC
Integrated SATPS total survey station
Apparatus for measuring surveying parameters, such as distances and angular displacements between an instrument survey station and a mobile survey station, with improved accuracy. The invention combines a differential satellite positioning system (DSATPS), available with positioning systems such as GPS and GLONASS, with electromagnetic measurements of distances and optically encoded angles by a conventional electro-optical survey instrument to provide survey measurements that can be accurate to within a few millimeters in favorable situations. The DSATPS relies upon pseudorange measurements or upon carrier phase measurements, after removal of certain phase integer ambiguities associated with carrier phase SATPS signals. The SATPS may be retrofitted within the housing of the conventional electro-optical instrument. In a first approach, a remote station provides DSATPS corrections for the mobile station and / or for the instrument station. In a second approach, the mobile station provides DSATPS corrections for itself and for the instrument station. In a third approach, the instrument station provides DSATPS corrections for itself and for the mobile station.
Owner:TRIMBLE NAVIGATION LTD
Mixed measurement analysis method for satellite antenna
The invention relates to a mixed measurement analysis method for a satellite antenna. The method effectively solves the problems that various measurement devices are used for co-measurement to reduce detection difficulty and improve detection efficiency during a measurement process of the satellite antenna. The method comprises the steps: cubic mirror collimating measurement is carried out by electronic theodolites during antenna installation and detection processes, scanning measurement of an antenna shaped surface is carried out by a laser radar, a space point position is measured by a laser tracker, and thus the measurement of the satellite antenna is jointly completed by the various measurement devices; union calibration algorithm of 'six freedom degree measurement station three-dimensional network' is employed, a conversion relationship between measurement station coordinates and measurement coordinates is utilized, various observed value error equations are directly listed, so as to overcome shortcomings of a traditional algorithm and improve adaptability of the algorithm. The method provided by the invention is simple, is easy to operate, enables an initial value to be fast acquired, has low requirements for precise degree of the initial value, has a few iteration times, is quick in convergence speed, theoretically is an optimal solution, and has strong algorithm adaptability, high measuring efficiency, fast speed and high precision.
Owner:BEIJING SATELLITE MFG FACTORY +1
System for performing environmental measurements and for transferring measurement results
InactiveUS7031663B2Easy transferIncrease coverageIndication of weather conditions using multiple variablesSubstation equipmentCellular radioMobile station
Automatic environmental measuring stations (10, 10a, 10b, 10c) are connected in a physical connection with base stations (11; 11a; 11b; 11c) of a cellular radio system which stations measure certain basic phenomena of the atmosphere and / or the concentrations of certain substances in the air. The information of the measurements is transferred using a base station over the cellular radio system to a central equipment (14) either as regular reports or as acute alarms if any alarm limit is exceeded. The information may also be transmitted over the base station of the cellular radio system to mobile stations (15) in the area of the base station in the form of individually tailored reports and alarms.
Owner:NOKIA MOBILE PHONES LTD +1
Airfoil qualification system and method
A method for qualifying airfoil blades includes securing an airfoil blade into a fixture, taking digital measurements of the airfoil blade, comparing the digital measurements of the airfoil blade with measurements of a target model, calculating deviations between the digital measurements of the airfoil blade and the measurements of the target model, determining a required treatment for the airfoil blade to conform with the measurements of the target model, directing a reworking system to provide the required treatment to the airfoil blade, and repeating the previous steps until it is determined that no further treatment is required. An airfoil qualification system for performing the method for qualifying airfoil blades includes a measurement station, a data processing system in communication with the measurement station and for determining a point deviation from a surface standard point for each of at least a portion of the plurality of surface points and for determining a required treatment of the airfoil, and a reworking station for directing treatments to the airfoil in response to input from the data processing system.
Owner:GENERAL ELECTRIC CO
Apparatus and methods for monitoring pipelines
A system for monitoring at least one parameter of interest relating to a flow conduit having a through passage and a fluid flow therein comprises at least one measurement station coupled to the flow conduit for taking a measurement relating to the parameter of interest. An interrogation device is adapted to move proximate the measurement station and to transmit a first signal to the measurement station, and to receive a second signal from the measurement station relating to the parameter of interest. The measurement station receives power from the first signal.
Owner:BAKER HUGHES INC
Exposure apparatus, exposure method, and device manufacturing method
ActiveUS20100157275A1Good precisionImprove accuracyPhotomechanical apparatusSemiconductor/solid-state device manufacturingEngineeringMeasurement station
When a wafer on a fine movement stage supported by a coarse movement stage is exposed via a projection optical system with an illumination light at an exposure station, a position of the fine movement stage within an XY plane is measured with good precision by a measurement system. Further, when an alignment to a wafer on a fine movement stage supported by a coarse movement stage is performed at a measurement station, a position of the fine movement stage within an XY plane is measured with good precision by a measurement system.
Owner:NIKON CORP
Real-time ranging and angle measurements using radar and surface acoustic wave transponders
ActiveUS7924160B1Low costMinimize complexityPiezoelectric/electrostriction/magnetostriction machinesPosition fixationElectromagnetic responseTriangulation
A system for tracking the position of multiple objects in three dimensional space by transmitting radar interrogation signals having predetermined wave shapes to surface acoustic wave transducers attached to each object. Each transducer includes a unique electrically conductive pattern on one surface of a piezoelectric substrate for selectively responding to the predetermined wave shape of one of the interrogation signals for inducing a surface acoustic wave in the substrate and for thereafter transforming the surface acoustic wave into an electromagnetic response signal having detectable properties that uniquely identify said transducer. The location of each transducer is estimated by measuring the time-of-flight or angle-of-arrival of the radar signals at several measurement stations and producing a position estimate by triangulation.
Owner:MASSACHUSETTS INST OF TECH
Method and system for determining a location of a wireless transmitting device and guiding the search for the same
InactiveCN1576877AImplement search guidanceAccurate search guideBeacon systems using radio wavesOn boardDisplay device
Method and system of determining a location of a wireless transmitting device, such as a cellular phone, a wireless PDA or a radio tag, and guiding the searching personnel to physically reach the wireless transmitting device are disclosed that employ a 'Movable Detection Station' and a 'Guiding and Reference Device', and optionally a 'searching robot'. The movable detection station is carried on board of a moving platform, such as a police car, an ambulance or a fire truck, or carried by searching personnel. The guiding and reference device is a handheld device including a display device that displays position and guiding information to a user, and a reference wireless transmitter that works with a movable detection station. A searching robot is a robot with a reference transmitter installed on it.
Owner:樊天蔚
Movable body apparatus, exposure apparatus, exposure method, and device manufacturing method
ActiveUS20100159403A1Possible to measureImprove accuracySemiconductor/solid-state device manufacturingUsing optical meansEngineeringMeasurement station
In an exposure station, positional information of a stage holding a wafer is measured by a first fine movement stage position measurement system including a measurement arm, and in a measurement station, positional information of a stage holding a wafer is measured by a second fine movement stage position measurement system including another measurement arm. An exposure apparatus has a third fine movement stage position measurement system which can measure positional information of a stage when the stage is carried from the measurement station to the exposure station. The third fine movement stage measurement system includes an encoder system including a plurality of Y heads and a laser interferometer system including a laser interferometer.
Owner:NIKON CORP
Determining resistivity anistotropy and formation structure for vertical wellbore sections
ActiveUS20110309833A1Electric/magnetic detection for well-loggingAcoustic wave reradiationUltrasound attenuationPhase shifted
Formation properties in a vertical section of a wellbore are determined by considering the vertical section as consisting of one or more segments. Measurements are obtained with a directional resistivity tool at two or more measurement stations within each segment for which the complex 0th harmonic coefficients for the obtained measurements are non-trivially different from one another. For each such segment, the phase shift and attenuation are determined using the complex 0th harmonic coefficients obtained for that segment and an inversion is performed for the formation properties using the determined phase shift and attenuation for that segment. Formation properties for that segment may be output to a display or memory storage device. For certain segments, one or more gain factors may be obtained. The gain factors are used to correct the measured voltages for certain neighboring segments and the corrected voltages inverted to obtain anisotropy and formation structure.
Owner:SCHLUMBERGER TECH CORP
Flexible measurement and control tool system and flexible measurement and control method for large wall panels with complicated surfaces
ActiveCN103447792AQuick response to assembly requestsRealize the clamping effectProgramme controlComputer controlVisibilityControl system
The invention discloses a flexible measurement and control tool system for large wall panels with complicated surfaces. The flexible measurement and control tool system comprises a fixture frame assembly, a wall panel surface retaining positioning assembly, a surface measurement assembly and an assembly information integrated control system module; the fixture frame assembly is configured in such a manner that wall panel assembly mounting space is limited by the fixture frame assembly; the wall panel surface retaining positioning assembly is rotatably mounted on the fixture frame assembly and is used for mounting a wall panel assembly; the surface measurement assembly is horizontally movably mounted on the fixture frame assembly; the assembly information integrated control system module is electrically connected with the surface measurement assembly. The invention further provides a flexible measurement and control method for assembling the wall panels by the aid of the system. The flexible measurement and control tool system and the flexible measurement and control method have the advantages that positioning points can be flexibly adjusted, the flexible measurement and control tool system and the flexible measurement and control method are applicable to different types of fuselage wall panel assemblies within a certain size range, large special tools are omitted, the assembly period can be shortened, and the tool cost can be saved; assembly requirements of different types of fuselage wall panels can be quickly met, and the assembly efficiency can be obviously improved; requirements on the openness of assembly stations and visibility of measurement stations can be met by the flexible measurement and control tool system owing to the design of dynamic modules in tools.
Owner:SHANGHAI AIRCRAFT MFG +1
Flow restriction insert for differential pressure measurement
InactiveUS20110214498A1Reduce the cross-sectional areaHigh speedSurveyVolume/mass flow by differential pressureMeasurement deviceDifferential pressure
A flow rate device for measuring the flow rate of a fluid flowing through a wellbore is disclosed. The flow rate device includes a differential pressure conduit, a flow restrictor insert and a differential pressure measurement device. The differential pressure conduit is locatable in the wellbore, defines an internal bore, and is adapted to include a restriction having a cross-sectional area to increase the velocity of fluid flowing through the differential pressure conduit to create a differential pressure. The differential pressure conduit defining first and second pressure measuring stations axially spaced along the differential pressure conduit. The flow restrictor insert is located in the restriction to reduce the cross-sectional area of the restriction. The flow restrictor insert defines an internal bore having a cross-sectional area less than the cross-sectional area of the restriction. The flow restrictor insert also has a pressure measuring port aligned with the second pressure measuring station. The differential pressure measurement device has at least one pressure sensor for detecting the pressure at the first pressure station, and for detecting the pressure at the second pressure station to generate a signal indicative of the flow rate of the fluid.
Owner:SCHLUMBERGER TECH CORP
Method for improving resolving success rate of medium and long baseline GPS integral cycle fuzziness
ActiveCN105842721AImprove fixation efficiencyQuick solveSatellite radio beaconingKaiman filterDouble difference
The invention provides a method for improving resolving success rate of medium and long baseline GPS integral cycle fuzziness, and aims to provide a method with advantages of high fuzziness real solution precision and high success rate. The method is realized through a technical solution which is characterized in that the method comprises the steps of setting an elevation mask angle by means of monitoring and measuring software, acquiring rough coordinates of a main measurement station and an auxiliary measurement station, and extracting useful observation data; selecting a reference satellite, comparing observation data of the main measurement state with the observation data of the auxiliary measurement station, establishing a double-difference observation equation by means of the observation data of the main measurement station and the auxiliary measurement station, performing state updating and parameter estimation on an observed equation by means of a Kalman filter, and solving a fuzziness float solution; then, converting the fuzziness float solutions of GPS double-difference carrier L1 and L2, and forming a vector set which comprises a wide lane integral cycle fuzziness and a carrier L1 fuzziness; searching the wide lane integral cycle fuzziness by means of a LAMBDA algorithm, obtaining the integer solution of the wide lane integral cycle fuzziness after fixation, and finally determining the success rate of the resolved fuzziness through a preset threshold, and confirming a correctly resolved integral cycle fuzziness.
Owner:10TH RES INST OF CETC
Base station based air pressure relative measurement method for calculating precise elevation
InactiveCN102735213AImprove calculation conversion precisionIncrease distribution densityHeight/levelling measurementTwo temperatureEngineering
The invention discloses a base station based air pressure relative measurement method for calculating a precise elevation. The method uses a known elevation value and an air pressure measurement value of a wireless communication network base station and an air pressure measurement value of a point to be measured to calculate the elevation of the point to be measured. In particular, the base station of ground mobile communication network is installed with an air pressure measuring sensor as a relative measurement station. A base station transmission link is used to transfer the measured data to a user; the user terminal is provided with an air pressure sensor chip to measure air pressure value of the terminal, so as to facilitate calculation of a relative elevation of the terminal to an installation location of the base station air pressure sensor by utilizing the corresponding relationship between elevation and air pressure value. Similarly, if temperature values of the base station and the terminal are known, the two temperature measurement values can be used to correct the relationship between elevation and air pressure value to further improve conversion accuracy of elevation calculation. The elevation calculation value of the method of the invention can be substituted into various positioning measurement equations to further improve accuracy of three-dimensional positioning solution of the measurement equations.
Owner:NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI +2
System and method for measuring irregular objects with a single camera
ActiveUS20100225757A1Accurate chargesAllocation is accurateColor television detailsClosed circuit television systemsFresnel lensSize measurement
An optical system for measuring an irregularly shaped object includes a dimensioning station having a base, a first wall extending from the base, and a second wall extending from the base. A collimated light is passed from each of first and second collimated light sources arranged generally parallel to the base, illuminating the first and second walls and defining first and second shadows, respectively. A camera is arranged to obtain image data representing each of the first and second shadows. The system is configured to collect the image data for determining at least one dimension of an object from each of the first and second shadows. Each of the first and second collimated light sources may be a light with a collimating lens arranged between the light and the respective wall. The light source may be an LED and the collimating lens may be a collimating Fresnel lens.
Owner:HAND HELD PRODS
Exposure apparatus and exposure method, and device manufacturing method
ActiveUS20140132940A1Reduce throughputWithout reducing throughputPhotomechanical exposure apparatusMicrolithography exposure apparatusGratingMeasurement device
An exposure apparatus is equipped with a first and second stage that are movable independently from each other within a predetermined plane and each have a table with a grating positioned under a surface where a wafer is mounted, and a third stage that is movable independently from the first and second stages within a predetermined plane and includes a light-receiving plane that receives an energy beam via an optical system. An optical member is provided that is at least a part of a measurement device, which performs a measurement related to exposure based on a light-receiving result of the energy beam received via the light-receiving plane. In an exposure station and measurement station, a first and second measurement system are respectively provided that measure the position of the tables by irradiating the grating of the first or second stage from below with a measurement beam.
Owner:NIKON CORP
Method and system for the localization of a mobile WLAN client
ActiveUS20070081496A1High positioning accuracyReduce in quantityNetwork topologiesPosition fixationDatabase serverClient-side
A method and a system for the localization of a mobile WLAN client, located within a WLAN network of multiple WLAN stations. Static reference points are ascertained by measuring field strengths of the WLAN stations at spatial coordinates, aided by WLAN client(s), and assignment of the measured field strengths to the spatial coordinates in terms of data records. Self-learning ascertainment of further dynamic reference points is obtained by measuring field strengths of the WLAN stations, aided by WLAN client(s) moving through the region of the network, and assignment of the measured field strengths in terms of data records to the respective spatial coordinates calculated for this purpose, in the database server. This may be done to localize a WLAN client by selecting a plurality of nearest matched data records of static and dynamic reference points whose subsequently calculated center of gravity corresponds to the estimated position of the WLAN client.
Owner:DEUTSCHE TELEKOM AG
Distributed Distance Measurement System for Locating a Geostationary Satellite
ActiveUS20110267229A1Improve accuracyEasy to measureCosmonautic vehicle trackingSatellite radio beaconingTelecommunications linkMeasurement station
A distance measurement system for locating a geostationary satellite equipped with a transponder includes: a central station emitting a distance measurement signal; and at least one measurement station receiving the emitted signal, including means for measuring the time of arrival of the emitted signal, and transmitted via the transponder of the satellite. The central and measurement stations, of known positions, include synchronization means with a common time base. The transponder is that of a satellite telecommunications system, and has a bandwidth B. The central station includes means for emitting a specific distance measurement signal, distinct from the telecommunications signals transmitted via the transponder, with periodic events and with spread spectrum, the bandwidth of which is included in B.
Owner:THALES SA
Methods and apparatus for characterization of petroleum fluid employing analysis of high molecular weight components
ActiveUS20120232799A1Accurate representationGood accuracy confidenceElectric/magnetic detection for well-loggingConstructionsMeasurement stationPetroleum
A methodology that performs downhole fluid analysis of fluid properties of a reservoir and characterizes the reservoir based upon such downhole fluid analysis. The methodology acquires at least one fluid sample at a respective measurement station and performs downhole fluid analysis to measure properties of the fluid sample, including concentration of a plurality of high molecular weight components. For each of a plurality of type classes corresponding to different subsets of a predetermined set of high molecular weight components, a model is used to predict the concentration of the components of the given type class for the plurality of measurement stations. The predicted concentrations of the high molecular weight components for the plurality of type classes are then compared with corresponding concentrations measured by downhole fluid analysis for the plurality of measurement stations to identify the best matching type class. The results of the comparison are used for reservoir analysis,
Owner:SCHLUMBERGER TECH CORP
Measuring method for inversing reservoir feeding flow procedures
The invention discloses a measuring method for inversing reservoir feeding flow procedure, comprising the steps: step I, performing observation and sampling to obtain the information of reservoir water level and discharging flow via a water level in front of the reservoir dam; step II, building a data assimilative state model and an observation model according to the information obtained in the step I; and step III, ascertaining the reservoir feeding flow procedures by a data assimilation algorithm according to the state model and the observation model obtained in the step II. The method disclosed by the invention can be used for ascertaining the reservoir feeding flow; compared with the prior art, the method disclosed by the invention can ensure smooth reservoir feeding flow, and avoid exceptional data like negative values and the like of the flow; the method also can supply the reservoir feeding flow procedure of minute time step, so as to reflect the flood peak information more truthfully; in addition, the method disclosed by the invention has low precision requirement to the water level gauge on the reservoir dam, so that the building and management costs of water level measurement stations are saved.
Owner:WUHAN UNIV
Bridge displacement monitoring system and bridge displacement monitoring method
InactiveCN103398682AImprove monitoring efficiencyImprove maintenance efficiencyUsing wave/particle radiation meansEngineeringManual testing
The invention discloses a bridge displacement monitoring system and a bridge displacement monitoring method. The system comprises a bridge displacement monitoring device, a communication device, a data management center and a user terminal, wherein the bridge displacement monitoring device transmits monitored bridge signals to the communication device through a wireless communication module; the communication device transmits the signals to the data management center through the wireless communication module; the data management center calculates the signals and then transmits the calculated signals to the user terminal. The bridge displacement monitoring system and the bridge displacement monitoring method have the benefits that real-time and long-term monitoring of lateral displacement, longitudinal displacement and vertical displacement of a bridge can be realized through measurement stations and a reference station which are provided with built-in GNSS receivers, safe and sound monitoring and prewarning of the bridge structure are realized; the measurement stations and the reference station can be synchronously measured without intervisibility between the measurement stations and the reference station; the signals are transmitted in a wireless manner, and high-precision three-dimensional coordinates can be provided in real time, so that manual testing time is shorted, the bridge management can realize automation and intelligentizing, and bridge safety monitoring and maintenance efficiency is greatly improved.
Owner:NINGBO HAICHUANG TIANXIA INFORMATION TECH
Method and device for unbalance correction on a vehicle wheel
Disclosed is a method for correcting an unbalance on a vehicle wheel including a rim and a tire, which includes measuring the unbalance of the vehicle wheel in an unbalance measuring station, rotating the vehicle wheel in the unbalance measuring station into a defined angular position and transmitting the defined angular position and the correction data to a control device for controlling an applicator head of a balancing station, transferring the vehicle wheel from the unbalance measuring station to the balancing station by means of a gripper arranged on a handling device and centrally locating and holding it in the balancing station, loading a corrective element which has one side coated with an adhesive and exhibits the weight amount determined in the unbalance measuring station into the applicator head of the balancing station, and rotating the vehicle wheel and / or the applicator head in dependence upon the control device in such a way that the corrective element in the cavity of the wheel rim reaches the correction plane and the attachment location on the attachment surface, and fastening the corrective element by pressing its adhesive-coated side against the attachment surface of the rim.
Owner:SCHENCK ROTEC GMBH
Method for extracting elevation control point through assistance of satellite laser altimetry data
Owner:CHINESE ACAD OF SURVEYING & MAPPING
Track slab fine adjustment method and track laying method based on this method
InactiveCN102277802AGuaranteed smoothnessAccurate removalRailway track constructionMeasuring apparatusTheodolitePrism
The invention provides a track slab fine adjustment method for China railway track system (CTRS) I-type ballastless track laying. A CTRS I-type ballastless track comprises a base (5), cement emulsion asphalt mortar (4), a track slab (3) and a steel rail which are stacked with one another from top to down, and fasteners (2) which are fixed in bolt holes in the track slab and used for fastening the steel rail and convex flanges (6) positioned between longitudinal ends of the track slab. The method comprises the following steps of: establishing a control point (CP) III point control network according to a provided CP I and a provided CP II; arranging a track slab reference point (GRP) positioned in the center of each convex flange (6) according to the CP III; placing a measurement standard frame with a prism on the track slab to be measured; arranging a universal theodolite measurement station at the GRP of the track slab; and measuring the prism through a universal theodolite and finely adjusting the track slab according to the measured data. The invention also relates to a CTRS I-type ballastless track laying method.
Owner:SHANGHAI NANJING INTERCITY RAILWAY CO LTD
Packaging case closing and tape sealing machine and processes
Owner:R A PEARSON
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