序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
141 METHOD AND APPARATUS FOR MEASURING PHYSICAL DISPLACEMENT US15446800 2017-03-01 US20170254722A1 2017-09-07 Michael McNeilly; John J. Martin
A displacement sensor assembly comprising a cantilever beam, a reaction block, a strain sensor, and a temperature sensor, wherein the cantilever beam is physically oriented such that the longitudinal axis of the cantilever beam is perpendicular to the direction of displacement, a first end of the cantilever beam is fixably mounted to a fixed reference and a first end of the reaction block is fixably mounted to a moving reference, a second end of the cantilever beam is joined to a second end of the reaction block, the strain sensor is mounted and calibrated to detect displacement between the fixed and moving reference by measuring strain on the second end of the cantilever beam, and the temperature sensor is mounted and calibrated to counteract the effect of thermal strain on the sensor assembly and a method of use therefore.
142 Stress detection in rail US14356615 2012-10-30 US09689760B2 2017-06-27 Francesco Lanza di Scalea; Claudio Nucera; Robert Phillips; Stefano Coccia
Methods and apparatus, including computer program products, are provided for determining rail stress. The method may include generating at least one ultrasonic guided wave to enable the at least one ultrasonic guided wave to propagate through a rail; detecting at least one of a fundamental frequency component of the at least one ultrasonic guided wave, one or more harmonics of the at least one ultrasonic guided wave, and/or a mixing component of the at least one ultrasonic guided wave; and determining a stress of the rail based on at least a nonlinearity parameter determined from the detected at least one of the fundamental frequency component, the one or more harmonics, and the mixing component. Related apparatus, systems, methods, and articles are also described.
143 Structural health monitoring system for a material and production method US14481101 2014-09-09 US09678026B2 2017-06-13 Blanka Lenczowski
A structural health monitoring system includes a signal transmission element and a sensor unit. The sensor unit is designed to feed a first signal into the signal transmission element and to read out a second signal from the signal transmission element. The signal transmission element has carbon nanotubes.
144 PIPELINE MONITORING AND MANAGING SYSTEMS AND METHODS THEREOF US14874648 2015-10-05 US20170097272A1 2017-04-06 Mohammed Zulfiquar
Methods and systems for monitoring and managing pipelines are disclosed. A system may include a movable monitoring device for scanning a pipeline including a first end and a second end. The monitoring device is disposable onto an external surface of the pipeline. The monitoring device includes a scanning device for scanning the pipeline and sensing parameter associated with the pipeline. The system also includes a data processing device communicably coupled to the movable monitoring device. The data processing device may be configured to receive the parameters associated with the pipeline and generate related information of the pipeline based on the parameters.
145 Pipe Fitting With Sensor US15274169 2016-09-23 US20170089496A1 2017-03-30 William H. Lennon
A fluid fitting is provided that is mechanically attached to a pipe, including a coupling body having an inner surface defining a bore for receiving the pipe therein. A ring is positioned to fit over the at least one end of the coupling body for mechanically attaching the coupling body to the pipe, and a main seal formed on the inner surface of the coupling body to engage the pipe. When installed, the ring and coupling body apply a compressive force to the main seal sufficient to attach the pipe to the coupling body in a non-leaking manner. An electrically operated sensor device is fixed to a surface of one of the coupling body or ring that, when the ring is installed on the coupling body, produces an electrical parameter in response to physical movement of the coupling body or ring to which the sensor device is fixed.
146 Conduit monitoring US14000448 2012-03-01 US09594002B2 2017-03-14 Alastair Godfrey; Philip Newton Winder
The present invention relates to a method of monitoring a fluid carrying conduit, comprising interrogating an optic fiber positioned along the path of the conduit to provide distributed acoustic sensing, measuring by distributed acoustic sensing the acoustic signal at each of a plurality of discrete longitudinal sensing portions along the length of the optic fiber, to monitor the optic fiber for the presence of a first characteristic signal, the first characteristic signal being indicative of ground heave the vicinity of the optic fiber, and determining that a failure has occurred in the conduit when a first characteristic signal is measured in the distributed acoustic sensing.
147 Sense and hold circuit for hose assembly US14026091 2013-09-13 US09535024B2 2017-01-03 James Dean Betsinger; Nicholas Adam Burtyk
A monitoring circuit for detecting degradation of a hose assembly a hose assembly and a hose assembly incorporating such a monitoring circuit are disclosed. The monitoring circuit includes a voltage source connected to a first connection location of a hose assembly. A capacitor is electrically connected between the second connection location connected to the second conductive layer of a hose assembly and a ground. The capacitor is selected such that a change in resistance of the hose assembly changes a voltage carried by the capacitor. The monitoring circuit includes a voltage sampling circuit configured to periodically detect a voltage at the capacitor. Upon detecting a change in the voltage above a predetermined threshold, the voltage sampling circuit generates an alarm indicative of potential failure.
148 STRAIN MEASUREMENT DEVICE AND INSTALLATION OF SUCH A DEVICE IN AN ELEMENT US15223366 2016-07-29 US20160334206A1 2016-11-17 Marc SARTOR; Patricia MORGUE; Manuel PAREDES
A strain measurement method and device are provided. The strain measurement device includes at least one filiform strain sensor and a support of longilinear shape on which the filiform strain sensor is positioned. The strain measurement device also includes a stiffener.
149 REMOTE TOWER MONITORING US15077390 2016-03-22 US20160286286A1 2016-09-29 David G. Brinker; Mark S. Allen
Disclosed herein are systems, methods, and circuits configured to monitor the displacement of a tower, report the monitored displacement via a networked connection, and determine that said tower is in a non-optimal state. By providing the aspects disclosed herein, an operator of a tower may optimize the tower's function, and potentially prevent the tower from breaking at an earlier stage.
150 Method to determine inertia in a shaft system US14871013 2015-09-30 US09435683B2 2016-09-06 Marko Bacic
A method to determine inertia of components of a rotating shaft system. The shaft system includes a shaft coupling a turbine to drive the rotation and a load to be driven by the rotation. The method includes steps to: apply a feedback to a forcing input to the shaft system; measure resonant frequency of the shaft; iterate steps 1.a) and 1.b) for different feedbacks; plot resonant frequency squared against gain; and determine inverse of gradient from the plot to give inertia of the turbine. Also a method to determine shaft stiffness using the inertia of the turbine.
151 Method for detecting torsion in a cable, electric cable with torsion sensor and method for manufacturing said cable US14382919 2012-03-05 US09400221B2 2016-07-26 Davide Sarchi; Luca Palmieri
A method for monitoring a torsional state of a cable having a central longitudinal axis, includes providing a cable including a torsion sensor longitudinally extending along the cable, the torsion sensor including a single-mode optical fiber arranged substantially along the central longitudinal axis of the cable, and at least three longitudinal structural elements, at least one of the longitudinal structural elements being an electrically conductive core, wherein the torsion sensor is mechanically coupled with at least one of the longitudinal structural elements; measuring a torsional state of the single-mode optical fiber by polarization-sensitive optical reflectometry; and associating the torsional state of the cable along the longitudinal axis with the measured torsional state of the single-mode optical fiber.
152 METHOD AND APPARATUS OF MULTI-AXIS RESONANCE FATIGUE TEST US14885731 2015-10-16 US20160109324A1 2016-04-21 Hakgu LEE; Byungsun HWANG; Wookyoung LEE; Mungyu JEONG
A multi-axis resonance fatigue test method and apparatus are provided by considering both stiffness coupling and inertia coupling in a resonance fatigue test that causes a complicated behavior and nonsymmetrical bending of a test article such as a wind turbine blade due to a coupling effect. In the method, a processor of the apparatus calculates a load value by considering a coupling between at least two axes of the test article. Also, the processor determines respective single-axis equivalent loads from the calculated load value by considering the coupling. This coupling may include at least one of a stiffness coupling and an inertia coupling.
153 METHOD FOR ANALYZING MEASURED SIGNAL IN RESONANCE FATIGUE TEST AND APPARATUS USING THE SAME US14885694 2015-10-16 US20160109323A1 2016-04-21 Hakgu LEE; Jinbum MOON; Jinbong KIM; Jihoon KIM; Wookyoung LEE; Hongkyu JANG
A method and apparatus for analyzing a measured signal are provided in a resonance fatigue test that causes a complicated behavior and nonsymmetrical bending of a test article such as a wind turbine blade due to a coupling effect. In the method, a processor of the apparatus receives the measured signal from each of at least two measurement sensors attached to the test article and then extracts a moment load from the received measured signal by considering all of a first measured value in a first direction due to a first direction load, a second measured value in a second direction due to the first direction load, a third measured value in the first direction due to a second direction load, and a fourth measured value in the second direction due to the second direction load.
154 METHOD AND APPARATUS OF MOMENT CALIBRATION FOR RESONANCE FATIGUE TEST US14885644 2015-10-16 US20160109319A1 2016-04-21 Hakgu LEE; Byungsun HWANG; Jinbum MOON; Wookyoung LEE
A moment calibration method and apparatus are provided for a resonance fatigue test of a test article. In the moment calibration method, when a load applying unit of the apparatus applies a static load to the test article in a first direction so as to cause bending of the test article, a processor of the apparatus obtains a first measured value from a physical quantity measured by at least one measurement sensor attached to the test article. Also, when the load applying unit applies a static load to the test article in a second direction different from the first direction so as to cause bending of the test article, the processor obtains a second measured value from a physical quantity measured by the measurement sensor. Then the processor calculates a correlation between the first measured value, the second measured value, and moment values respectively calculated from the static loads applied in the first and second directions. By considering a dual-axis load state, the moment calibration method can obtain reliable calibration results exactly matching with a real fatigue test.
155 Force measurement system US14668368 2015-03-25 US09316488B1 2016-04-19 Robert H. Sternowski
A system includes an emitter of electromagnetic radiation combined to the object and aligned with a detector for detecting the electromagnetic radiation from the emitter. A processor in communication with the detector is calibrated to recognize a change in alignment between the electromagnetic radiation from the emitter and the detector. The processor translates the change in alignment to the amount of force applied to the object.
156 Methods and systems for optical wear sensing US13470734 2012-05-14 US09297708B1 2016-03-29 Charles E. Morris; Thomas Lyman Weaver
Methods and systems for use in monitoring a physical interface between a structural opening and a medium. A system is provided comprising a medium operable to pass through a plurality of structural openings and a sensing system associated with the medium. The sensing system includes at least one physical interface positioned at locations where the medium passes through one of the plurality of structural openings. The at least one physical interface includes at least one waveguide for monitoring changes to the at least one physical interface.
157 FATIGUE TESTING OF A TEST SPECIMEN US14782083 2014-04-01 US20160061688A1 2016-03-03 Jeroen Stijn Juliaan Van Wittenberghe; Philippe Octave Thibaux
The invention pertains to a combination of a test rig and test specimen for performing a fatigue test, wherein the test specimen is non-axisymmetric and comprises:—a central element,—a first branch element, which has a longitudinal axis that extends at an angle to the longitudinal axis of the central element,—a joint connecting the first branch element to the central element, which has an in plane bending resonance frequency with an associated in plane bending mode shape, and an out of plane bending resonance frequency with an associated out of plane bending mode shape, wherein the in plane bending resonance frequency and the out of plane bending frequency are substantially the same, wherein the first node of the in plane bending mode shape and the first node of the out of plane bending mode shape are substantially at the same position at the first branch element and wherein the test rig comprises:—a support for supporting the test specimen,—an excitator for subjecting the test specimen to forced vibration at an excitation frequency.
158 Apparatus for automated positioning of eddy current test probe US13963630 2013-08-09 US09273985B2 2016-03-01 Thomas O'Dell
An apparatus for automated inspection and repair of a tube sheet. The apparatus has a rotating gripper pod, comprising at least one tube gripper, a sliding body portion containing the gripper pod; a housing portion comprising at least one tube gripper and a tool head coupling. The tool head coupling swapably attaches to a eddy current test probe and at least one kind of tube repair tool. Novel, auto-locking tube grippers are also disclosed. A serial bus connects electronic modules within the apparatus and also connects the apparatus to an external controller.
159 Immersion inspection system for a machine and related method of operation US13792609 2013-03-11 US09255860B2 2016-02-09 Gary Austin Lamberton; Curtis Wayne Rose
Systems, devices, and methods, adapted to immersively test/inspect machine components (e.g., tubes, conduits, etc.) in an in-situ manner are disclosed. In one embodiment, a system includes: a first seal member configured to sealingly engage a first portion of a machine component; a base system connected to the first seal member and configured to extend within the machine component, the base system including: a housing; and a inspection device disposed within the housing and configured to inspect the machine component; and a second seal member connected to the base system and configured to sealingly engage a second portion of the machine component.
160 Computer-implemented method to screen for longitudinal-seam anomalies US12953720 2010-11-24 US09243972B2 2016-01-26 Noel Duckworth; Ron Sherstan
Embodiments of the present invention provide computer-implemented methods to detect crack-like features in pipeline welds using magnetic flux leakage data and pattern recognition. A screening process, for example, does not affect or change how survey data is recorded in survey tools; only how it is analyzed after the survey data is completed. Embodiments of the present invention can be used to screen for very narrow axial anomalies in the pipeline welds, and may also be used to predict the length of such anomalies. Embodiments of the present invention also produce a listing of the anomalies based on their relative signal characteristics.
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