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Wireless health monitoring of battery cells

Thu, 06 Apr 2017 08:00:00 EDT

A strain gauge sensor system is disclosed for monitoring changes in stain of a battery surface, said change in strain indicative of internal changes in the battery. The sensor system comprises a wire grid based sensor, the sensor electrically connected though for example a Wheatstone bridge to an RFID tag. In the presence of an RFID reader, the sensor system is activated, a signal representative of the resistance of the wire grid (and thus grid strain) transmitted to the reader, and the resistance value compared to resistance values for the healthy state of the battery.



Bicycle Pedaling Frequency Sensor

Thu, 06 Apr 2017 08:00:00 EDT

The invention discloses a bicycle pedaling frequency sensor, comprising a signal acquisition unit arranged on a circuit board and used for acquiring motion acceleration changes and/or angular velocity changes in different rotation directions of a middle axle in real time, a data transmission unit for transmitting the acquired data to a terminal, and a power supply for supplying power to each unit to work. When in use, the pedaling frequency sensor is fixed on the hollow middle axle of a bicycle, and the middle axle, a crank and pedals of the bicycle rotate synchronously; during riding motion, acceleration change and/or angular velocity change data is acquired in real time and transmitted to the corresponding processing terminal via the data transmission unit for processing, real-time rotating frequency of the middle axle of the bicycle is obtained, and then pedaling frequency data during riding is acquired. Because the pedaling frequency sensor skillfully implements counting through periodical changes of acceleration or/and angular velocity data and other data when the bicycle moves and does not need to carry out counting in a sensing mode through periodical relative motion between two separated components, the pedaling frequency sensor is simple in structure, small in size and works stably and reliably.



APPARATUS FOR MOVING AND TESTING BIOLOGICAL SAMPLES

Thu, 06 Apr 2017 08:00:00 EDT

An apparatus for moving and testing biological samples is described, comprising a laboratory automation system for moving transporting devices of single test tubes containing biological material samples, a testing module of said biological material samples contained in said test tubes adapted to receive linear containers of a plurality of test tubes arranged in a series of consecutive housings along a line, and an interconnection module between said laboratory automation system and said testing module,



METHOD OF PACKING CHROMATOGRAPHIC COLUMNS, PACKED CHROMATOGRAPHIC COLUMNS FOR USE AT HIGH PRESSURES AND USES THEREOF

Thu, 06 Apr 2017 08:00:00 EDT

A method of packing a chromatography column, including: dispersing chromatographic media particles in a slurry solution to form a slurry, filling a chromatography column with the chromatographic media particles by introducing the slurry to the column and applying a pressure to pack the chromatographic media particles in the chromatography column. The slurry solution is preferably aqueous based slurry solution. The pressure is preferably applied and held substantially constant for a first period at a first pressure and is applied and held substantially constant for a second period, following the first period, at a second pressure higher than the first pressure.



QUANTITATIVE TEXTURE MEASUREMENT APPARATUS AND METHOD

Thu, 06 Apr 2017 08:00:00 EDT

A photo acoustic non-destructive measurement apparatus and method for quantitatively measuring texture of a food snack is disclosed. The apparatus includes a laser generating tool, an acoustic capturing device, and a data processing unit. The laser generating tool directs a laser towards a food snack placed on a surface and creates pressure waves that propagate through the air and produce an acoustic signal. The acoustic capturing device records and forwards the signal to a data processing unit. The data processing unit further comprises a digital signal processing module that processes the received acoustic signal. A statistical processing module further filters the acoustic signal from the data processing unit and generates a quantitative acoustic model for texture attributes such as hardness and fracturability. The quantitative model is correlated with a qualitative texture measurement from a descriptive expert panel. Texture of food snacks are quantitatively measured with the quantitative acoustic model.



SYSTEM AND METHOD FOR DETECTING DEFECTS IN STATIONARY COMPONENTS OF ROTARY MACHINES

Thu, 06 Apr 2017 08:00:00 EDT

A method implemented by at least one processor, includes receiving an acoustic signal from an acoustic emission sensor disposed at a predetermined location on a casing of a rotary machine operating in a transient condition. The method further includes applying a signal envelope extraction technique to the acoustic signal to generate a transformed acoustic signal. The method also includes generating an acoustic signature signal based on the transformed acoustic signal and determining a crack defect on a stationary component of the rotary machine based on the acoustic signature signal.



PIPELINE CRACK DETECTION

Thu, 06 Apr 2017 08:00:00 EDT

A method includes emitting an ultrasonic signal into a test specimen from a transducer, receiving a first reflected ultrasonic signal from the test specimen, wherein the first reflected ultrasonic signal is reflected from a feature in the test specimen and the first reflected ultrasonic signal is internally reflected within the test specimen three times prior to being received, and determining a threshold depth of the feature in the test specimen based on receiving the first reflected ultrasonic signal.



MEMS DIE WITH SENSING STRUCTURES

Thu, 06 Apr 2017 08:00:00 EDT

A microelectromechanical systems die including a thermally conductive substrate including an outer surface, a plurality of low mass sensing structures disposed within the thermally conductive substrate to form a plurality of inter-structure spaces therebetween, each of the plurality of low mass sensing structures include a sensing structure proximal top surface, a sensing structure distal top surface, and a sensing structure width dimension.



HUMIDITY SENSOR

Thu, 06 Apr 2017 08:00:00 EDT

A relative humidity sensor is disclosed. The relative humidity sensor includes a first electrode and a second electrode disposed above a dielectric substrate. A sensitive layer is disposed above the first electrode and the second electrode, where the sensitive layer is formed from a doped conductive polymer.



Process for testing a compressor or a combustor of a gas turbine engine using a large compressed air storage reservoir

Thu, 06 Apr 2017 08:00:00 EDT

A process for testing a turbine of a gas turbine engine at high altitudes, where a large volume of compressed air is stored in a large reservoir of at least 10,000 m3 such as an underground storage cavern, compressed air from the storage reservoir is passed through heat exchanger to preheat the compressed air to a temperature that would normally be discharged from a compressor, the preheated compressed air is burned with a fuel in the combustor, and additional compressed air from the reservoir is passed through an injector located downstream from the turbine to produce a decreased pressure such that a low atmospheric condition at the turbine exit is simulated.



Process for testing a compressor or a combustor of a gas turbine engine using a large compressed air storage reservoir

Thu, 06 Apr 2017 08:00:00 EDT

A process for testing a combustor of a gas turbine engine, where a large volume of compressed air is stored in a large reservoir of at least 10,000 m3 such as an underground storage cavern, compressed air from the storage reservoir is passed through heat exchanger to preheat the compressed air to a temperature that would normally be discharged from a compressor, the preheated compressed air is burned with a fuel in the combustor, and additional compressed air from the reservoir is passed through an injector located downstream from the combustor to produce a decreased pressure such that a low atmospheric condition at the combustor exit is simulated.



MATERIAL TESTING APPARATUS AND METHOD

Thu, 06 Apr 2017 08:00:00 EDT

A testing apparatus may include a stand having an aperture and a platform adjacent to the aperture, a clamp adjacent to the platform and configured to hold a coupon, and an actuator within the aperture. The actuator is configured to impart a first force on the platform and the coupon at a specified frequency. The testing apparatus may also include a displacement sensor adjacent to the stand and configured to measure a displacement of the coupon and circuitry connected to the actuator and the displacement sensor with the circuitry configured to collect data from the actuator and the displacement sensor.



Evacuable Flexible Leakage Test Chamber

Thu, 06 Apr 2017 08:00:00 EDT

An evacuable flexible test chamber (10) for a leakage test of a test piece, having a wall (12) surrounding a test chamber volume (36), is characterized in that at least a portion of said wall is made up of two layers (18, 20) of wall material of which at least the layer (20) facing said test chamber volume (36) is made from a flexible material, and that between said two layers (18, 20) an overpressure as compared to the atmosphere surrounding said test chamber (10) is adapted to be created.



CREATING A MINI ENVIRONMENT FOR GAS ANALYSIS

Thu, 06 Apr 2017 08:00:00 EDT

Systems and methods for in-situ leak detection and endpoint detection of wafer dry etch or chamber clean in chambers, e.g., vacuum chambers used in semiconductor processing. A mini environment is created and a sensor, such as an SPOES sensor, can be used in the mini-environment to perform leak detection.



SYSTEM STABILITY MONITORING APPARATUS AND METHOD

Thu, 06 Apr 2017 08:00:00 EDT

When vibration information calculated using measurement information is classified using a distance between measurement points which is calculated using the point information, even in a case in which a plurality of vibration modes with close vibration frequencies are present at the same time, stability determination at a high speed and a high accuracy is realized. A system stability monitoring apparatus which monitors system stability of a power system includes a measurement information collecting unit that collects measurement information of a plurality of points in the power system, a vibration analyzing unit that calculates vibration information indicating vibration of a system state in the plurality of points using the measurement information, an information storage unit that stores point information including position information of the plurality of points, and a vibration classifying unit that classifies the vibration information based on the point information.



Pressure Sensor and Method for Producing the Pressure Sensor

Thu, 06 Apr 2017 08:00:00 EDT

A pressure sensor has a substrate and a transistor structure. The substrate has a cavity formed in the substrate. The transistor structure is arranged above the cavity. The transistor structure has a flexible heterostructure and at least one source contact, drain contact, and gate contact each connected to the heterostructure in an electrically conductive manner. The heterostructure is configured to assume a position corresponding to a pressure ratio between a first pressure in the cavity and a second pressure on a side of the heterostructure opposite the cavity. The transistor structure is configured to provide an electrical signal corresponding to the position.



TORQUE SENSING DEVICE AND THE ROTATIONAL DRIVING TOOL COMBINED THEREOF

Thu, 06 Apr 2017 08:00:00 EDT

A torque sensing device includes an idle wheel disposed between a force input shaft and a force output shaft, the idle wheel receives a tangential force from the force input shaft and the force output shaft to generate a counterforce as a loading, the center of the idle wheel is pivotally disposed on a positioning beam or a basis nearby, the positioning beam has a beam central line where a strain gauge installed. The positioning beam transforms the loading of the idle wheel along the beam central line to a normal force on the cross section of the positioning beam along the beam central line, the positioning beam generates a strain due to the normal force on the cross section of the positioning beam, the strain gauge detects the strain as the torsion sensing value of the output shaft on the region between the force input shaft and the force output shaft. A rotational driving tool is combined with the torque sensing device to improve the detecting precision of the torsion.



HIGH PRECISION BELT WEIGHING DEVICE AND METHOD

Thu, 06 Apr 2017 08:00:00 EDT

Various embodiments provide a high precision belt weighing device and a high precision belt weighing method. An exemplary high precision belt weighing device includes a set of buffer carrier rollers provided between a first and second belt weighing scale frames. A volume scale hopper is provided above the set of buffer carrier rollers. A transfer conveyor is provided above the volume scale hopper. The first and second belt weighing scale frames, the volume scale hopper, an initial point detector, and a speedometer are connected with a weighing control instrument by cables. Cumulative weights of bulk materials handled by each of the first and second belt weighing scale frames, the corrected weight of bulk materials in the volume scale hopper, and a zero point in the length of a conveying belt detected by the initial point detector are displayed on the weighing control instrument.



Closed Tank Fill Level Sensor

Thu, 06 Apr 2017 08:00:00 EDT

A fill level sensor and method are disclosed. The fill level sensor can take a pressure reading beneath a fluid level inside a closed tank. The sensor can also take a pressure reading above the fluid level or otherwise take the vapor pressure above the fluid into account. The measurements can be used to calculate the fluid level inside the tank. Also disclosed is a system for users to track a plurality of tanks and maintain records of fluid level or pressure within the tanks.



DENSITY COMPENSATION FOR ELECTROMECHANICAL LIQUID LEVEL GAUGES

Thu, 06 Apr 2017 08:00:00 EDT

A method of measuring liquid level in a tank. An electromechanical liquid level gauge (ESG) is provided including a processor, a displacer suspended on a wire from a grooved drum having a servo motor coupled thereto to rotate the drum for balancing the displacer. A change in liquid level causes a change in a counterforce to move the ESG out of balance. The processor monitors a torque sensor output, and controls movement of the motor using a programmed apparent weight (AW) setpoint to raise or lower the displacer based on an AW derived from the torque. An associated memory stores a density compensated fixed immersion depth level gauging algorithm. The algorithm implements obtaining a density reading for the liquid, continuously corrects an immersion depth of the displacer for changes in density to provide an essentially fixed immersion depth, and calculates the liquid level from the density reading and immersion depth.



COMPOSITE MEMS FLOW SENSOR ON SILICON-ON-INSULATOR DEVICE AND METHOD OF MAKING THE SAME

Thu, 06 Apr 2017 08:00:00 EDT

The present invention disclosed a micromachined composite silicon flow sensor that is comprised of calorimetric and anemometric flow sensing elements, time-of-flight sensing elements as well as independent temperature sensing elements on a silicon-on-insulator device where the device layer is used for the thermal isolation membrane. The disclosed composite silicon flow sensor can measure mass flowrate, volumetric flowrate and flow medium temperature simultaneously, from which a full spectrum of flow parameters including flow pressure can be obtained. The sensor can be further used to alert any changes in physical properties of flow medium during operation. The disclosed manufacture process details the micromachining process of making such a sensor.



METHOD FOR SETTING A CONSTANT MAGNETIC FIELD STRENGTH OF A MAGNETIC FIELD USING A MAGNETIC-INDUCTIVE FLOWMETER AND A RESPECTIVE MAGNETIC-INDUCTIVE FLOWMETER

Thu, 06 Apr 2017 08:00:00 EDT

A method for setting a constant magnetic field strength of a magnetic field within a commutation interval using a magnetic-inductive flowmeter having a current controller with which time for setting the constant magnetic field strength of a magnetic field is relatively shorter. Additionally, a first interval having a starting point in time and an ending point in time and a second interval having a starting point in time and an ending point in time are arranged within a commutation interval. A first setpoint current curve for the first interval differs by a difference current curve to effectuate a higher rate of change. A second setpoint current curve is assigned to the constant setpoint current. The current controller is fed the first and second setpoint current curves.



KARMAN VORTEX FLOWMETER

Thu, 06 Apr 2017 08:00:00 EDT

There is provided a Karman vortex flowmeter including: a body inside which a flow passage and a Karman vortex generation column are formed; and a flow rate measurement unit that measures Karman vortexes generated by the Karman vortex generation column to thereby obtain a flow rate of a fluid, in which the flow rate measurement unit includes: a piezoelectric element; a piezoelectric element holder that is attached to the body so that the piezoelectric element is arranged in a flow passage; and a thin film part that is formed of a material with higher corrosion resistance than an electrode of the piezoelectric element, the piezoelectric element holder houses the piezoelectric element in a state where the piezoelectric element is sandwiched by a pair of plate-shaped parts integrally formed by a resin material, and in which the thin film part is arranged between the plate-shaped parts and the electrode.



SENSOR AND CABLE WITH LOCAL WIRELESS READ AND WRITE CAPABILITY AND METHODS OF USING SAME

Thu, 06 Apr 2017 08:00:00 EDT

Methods and apparatus for verifying a transducer are provided. In preferred embodiments, the flow of current on a wire that provides power to both a micro-processor and a transducer is reversed. A wireless communication chip listens for and receives a read request and communicates the read request to a microprocessor. The microprocessor reads the transducer data from non-volatile memory and transmits it with the wireless chip. Preferably, a hand held device is used to initiate the transfer of and receive the transducer data.



METHOD FOR OPTIMIZING THE SWITCH-ON TIME OF A CORIOLIS GYROSCOPE AND CORIOLIS GYROSCOPE SUITABLE THEREOF

Thu, 06 Apr 2017 08:00:00 EDT

A method for optimizing the switch-on time of a Coriolis gyroscope (1) having a mass system (100) which can be excited to an excitation oscillation of the Coriolis gyroscope (1) parallel to a first axis (x), wherein a deflection of the mass system on account of a Coriolis force along a second axis (y) which is provided perpendicular to the first axis (x) can be verified using an output signal from the Coriolis gyroscope, comprises determining the amplitude (A) of the excitation oscillation of the Coriolis gyroscope at a defined dine, determining the output signal (S) from the Coriolis gyroscope at the defined time, and generating a normalized output signal (S0) from the Coriolis gyroscope by multiplying the determined output signal (S) by the quotient of the amplitude (A0) of the excitation oscillation of the Coriolis gyroscope in the steady state and the determined amplitude (A).



METHODS FOR PRODUCING PASSIVE STRAIN INDICATOR ON TURBINE COMPONENTS

Thu, 06 Apr 2017 08:00:00 EDT

Methods for manufacturing passive strain indicator on turbine components include providing a turbine component comprising an exterior surface, and, depositing a ceramic material onto a portion of the exterior surface to form a passive strain indicator comprising at least two reference points.



METHOD FOR QUALIFICATION TESTING OF A TUBULAR CONNECTOR

Thu, 06 Apr 2017 08:00:00 EDT

The invention provides a method of selecting a threaded tubular connector for qualification testing, the method comprising the steps of providing a test specimen (34) provided with a test surface that exhibits comparable material properties and/or surface topology as the sealing surface on the connector, determining a parameter of the test surface relating to the sealing capability of the sealing surface; subjecting the test surface to a load, the load corresponding to a selected phase of a qualification test procedure for the tubular connector; removing the load; determining a variation of the parameter; and ceasing the qualification test procedure if the variation of the parameter indicates a reduction of the sealing capability of the sealing surfaces.



QUANTITATIVE TEXTURE MEASUREMENT APPARATUS AND METHOD

Thu, 06 Apr 2017 08:00:00 EDT

A photo acoustic non-destructive measurement apparatus and method for quantitatively measuring texture of a food snack is disclosed. The apparatus includes a laser generating tool, an acoustic capturing device, and a data processing unit. The laser generating tool directs a laser towards a food snack placed on a surface and creates pressure waves that propagate through the air and produce an acoustic signal. The acoustic capturing device records and forwards the signal to a data processing unit. The data processing unit further comprises a digital signal processing module that processes the received acoustic signal. A statistical processing module further filters the acoustic signal from the data processing unit and generates a quantitative acoustic model for texture attributes such as hardness and fracturability. The quantitative model is correlated with a qualitative texture measurement from a descriptive expert panel. Texture of food snacks are quantitatively measured with the quantitative acoustic model.



STATE MONITORING SYSTEM

Thu, 06 Apr 2017 08:00:00 EDT

Provided is a state monitoring system that monitors a state of an apparatus provided in a wind turbine, including a wireless measuring unit including a sensor provided to the apparatus, and a data collection device. The wireless measuring unit includes a memory storing measured data obtained from the sensor, and a wireless communication unit transmitting the measured data obtained from the sensor to the data collection device. When the data collection device has not been able to receive the measured data from the wireless measuring unit, the data collection device requests the wireless measuring unit to retransmit the measured data.



METHOD FOR DETECTING AIR FILTER DEGRADATION

Thu, 06 Apr 2017 08:00:00 EDT

Methods and systems are provided for determining a status of an air filter in an intake of an engine in a hybrid vehicle. One example method includes, during an engine-off condition, utilizing a pump in an evaporative leak check module of the hybrid vehicle to produce a pressure in an intake manifold of the engine, and indicating degradation of the air filter based on a comparison of barometric pressure and the pressure produced in the intake manifold. In this way, degradation of the air filter may be determined without engine operation.



TIRE PRESSURE COLD CHECK SYSTEM

Thu, 06 Apr 2017 08:00:00 EDT

Cold check gas pressure readings for the landing gear tires of an aircraft are obtained automatically during normal operation of the aircraft. The automated system (S1, e.g.) includes monitoring aircraft data to determine that the aircraft is at rest on the ground (32,345,36), and electronically monitoring the tire pressure (24). When predetermined cold check conditions have been met; the tire pressure values are automatically stored with a timestamp (38) for later access by a user.



SYSTEM FOR CHECKING CALIBRATION OF A ROBOTIC MULTI-AXIS MACHINE

Thu, 06 Apr 2017 08:00:00 EDT

A system for checking calibration of a multi-axis machine includes a robotic arm and a mount configured to receive a removable machine tool and a controller electronically connected to the multi-axis machine. The removable machine tool includes a removable spray nozzle and a laser housing that is coupled to the machine tool. The laser housing includes a laser affixed inside the housing for emitting a laser beam and a calibration workpiece coupled to a mounting table. The calibration workpiece comprises a plurality of laser sensors disposed along an outer surface of the calibration workpiece. The controller is programmed to point the laser beam at each laser sensor. The laser sensors generate signals that are communicated back to the controller if the laser beam is detected by the laser sensor.



TORQUE-CORRECTABLE TORQUE WRENCH AND TORQUE CORRECTION METHOD THEREOF

Thu, 06 Apr 2017 08:00:00 EDT

A torque wrench includes a mechanical structure and an electronic structure. The mechanical structure includes a tubular body, a flexible rod, an abutment member, an elastic member, a trip mechanism, an adjustment mechanism and a mechanical scale indication mounted in the tubular body for indicating the set torque of the wrench. The electronic structure includes at least one torque sensor and a display unit. When correcting the torque value of the mechanical structure, a force is applied to the wrench and the torque sensor detects the trip torque value of the wrench. The torque value of the mechanical structure is adjusted to match the torque value detected by the torque sensor so as to eliminate the error of the torque value of the mechanical structure.



DISPOSABLE SEALED BODY FLUID RETENTION DEVICE AND CONVENIENT AND SANITARY FLUID-TAKING METHOD

Thu, 06 Apr 2017 08:00:00 EDT

Disclosed is a disposable sealed body fluid retention device, comprising a fluid storage pipe (1), a fluid-taking piece (2) and a shielding body (4), wherein the fluid storage pipe (1) comprises an opening part (11) and a fluid storage cavity (12); the fluid-taking piece (2) is provided with a fluid guide channel (21), an exhaust channel (22), an annular side wall (23) and a partition (28); the partition (28) is located in the annular side wall (23) and separates the fluid guide channel (21) from the exhaust channel (22); one end of the fluid guide channel (21) is provided with a fluid inlet (24) and the other end is provided with a fluid outlet (25); the fluid outlet (25) is located at the lower part of the fluid-taking piece (2); one end of the exhaust channel (22) is provided with an exhaust port (26) and the other end is provided with an air outlet (27); the exhaust port (26) is located at the lower part of the fluid-taking piece (2); and the shielding body (4) is located outside the fluid storage pipe (1). The disposable sealed body fluid retention device has the advantages of convenience and sanitation, and when removing the fluid-taking piece (2) and the shielding body (4), it is ensured that the outer wall of the fluid storage pipe (1) is not contaminated with urine and the fluid storage pipe (1) can be directly used for a urine dipstick test and urine analyser detection.



ULTRASONIC WAVE-DISSIPATION BLOCK AND ULTRASONIC PROBE HAVING SAME

Thu, 06 Apr 2017 08:00:00 EDT

The present invention provides an ultrasonic wave-dissipation block and an ultrasonic probe having the same, which reflect and diffract a backward ultrasonic wave progressing toward the rear of piezoelectric ceramics for generating ultrasonic waves, so as to dissipate the ultrasonic wave, thereby improving the absorption performance of the ultrasonic wave, while reducing the weight and size of a part performing the role of absorbing the ultrasonic wave. The ultrasonic wave-dissipation block comprises: a base body in which an accommodation space is formed; and an ultrasonic reflector disposed in the accommodation space of the base body, and reflecting the ultrasonic wave, flowing in from the outside of the base body, in the direction of the inner sides of side walls of the base body.



SYSTEM AND METHOD FOR CHARACTERIZING BIOMECHANICAL ACTIVITY

Thu, 06 Apr 2017 08:00:00 EDT

A system and method for collecting a set of kinematic data streams from an activity tracking system with at least one activity monitoring system that is attached to a user; segmenting at least a subset of the kinematic data streams into a set of segments according to actions of the user; generating a set of biomechanical signals from the kinematic data streams wherein a biomechanical signal characterize a biomechanical property during a segment and includes generating a first integration data set through data integration and baseline error correction across the set of segments of the normalized kinematic data stream and determining at least a first biomechanical signal that is at least partially based on the first integration data set; and applying the set of biomechanical signals.