Abstract: Provided is a method of locating a damage source of a wind turbine blade for tracking a damage source location of a blade used in a wind power generator, and more particularly, a method of locating a damage source of a wind turbine blade and an apparatus thereof in a large composite material structure capable of accurately locating a damage source even in a large composite material structure by detecting defects using contour maps written based on elastic wave energy value. The method of locating a damage source of the wind turbine blade according to the present invention can accurately locate the damage source even in the large composite material structure using at least two materials unlike the related art and can use a smaller number of AE sensor than the related art.

Abstract: An identification probability estimation model, which shows the relationship between the S/N ratios of MS1 peaks and the cumulative number of the peaks in the case where MS2 measurements and identifications is performed in descending order of S/N ratio, is created beforehand from the S/N ratios of MS1 peaks as well as the results of MS1 or MS2 measurements and identifications (success or failure) performed for a number of fractionated samples obtained from a predetermined sample. Based on an evaluated value of the identification probability and that of the identification probability increment, an order of priority of MS2 measurements for a plurality of MS1 peaks is determined, and an MS2 measurement sequence which gives the maximal expectation value of the number of substances to be identified under a limitation on the number of MS2 measurements or other factors is determined.

Abstract: The invention relates to a velocity determination apparatus (1) for determining a velocity of an object (2). A Doppler frequency measuring unit is adapted to measure Doppler frequencies in at least three different frequency directions, wherein a Doppler frequency calculation unit is adapted to calculate a Doppler frequency for a calculation frequency direction being similar to one of the at least three different frequency directions depending on the Doppler frequencies measured for at least two further frequency directions of the at least three different frequency directions. The velocity can then be determined depending on the calculated Doppler frequency and the measured Doppler frequencies. Since in the calculation frequency direction the measured Doppler frequency is not needed for determining the velocity, a reliable velocity can be determined also in the calculation frequency direction, even if the measurement of the Doppler frequency in this calculation frequency direction is disturbed.

Abstract: The present invention relates to in-line viscometers with no moving parts for monitoring the viscosity of fluids. One embodiment of the invention is a viscometer including a first tube, a second tube, a first flow metering device coupled with the first tube, a second flow metering device coupled with the second tube. The second tube is larger in diameter than the first tube. Another embodiment is directed to a method for maintaining a desired viscosity during a process.

Abstract: A urine work area manager comprises a computing unit and a set of machine executable instructions stored in a memory for execution by the computing unit. The computing unit transfers commands and data between a urine test strip reader and the manager using a first interface, and transfers commands and data between a urine sediment analyzer and the manager using a second interface. In operation, the computing unit instructs the urine test strip reader to analyze a plurality of urine samples, receives a strip analysis result from the urine test strip reader, and generates a first set of instructions for controlling the urine sediment analyzer using the strip analysis result. The computing unit further instructs the urine sediment analyzer to analyze the plurality of urine samples with the first set of instructions and receives a sediment analysis result from the urine sediment analyzer using the second interface.

Abstract: A method is described for calculating an optimum stand-off distance for surface position measurements to be acquired by a coordinate positioning apparatus including a measurement probe. The coordinate positioning apparatus may include a machine tool and the measurement probe may include a touch trigger probe having a deflectable stylus. The method includes the step of calculating an optimum stand-off distance using at least one measured acceleration characteristic of the coordinate positioning apparatus. In this manner, measurement cycle times may be optimised.

Abstract: Devices, methods, and systems for monitoring access to a location are described herein. One or more method embodiments include determining data associated with an access event associated with a location, determining whether the access event is an anomalous access event using the data associated with the access event and a statistical model of data associated with a number of non-anomalous access events associated with the location, and assessing, if the access event is determined to be an anomalous access event, the anomalous access event. In various embodiments, assessing the anomalous access event includes at least one of determining an anomaly type associated with the anomalous access event, determining an anomaly classification confidence associated with the anomalous access event, determining an anomaly severity associated with the anomalous access event, and determining a reliability associated with the statistical model.

Abstract: A work system includes an arm mechanism, a position and an orientation of which are configured to be changed so as to process an object placed on a work area, a member arranged at a distal end portion of the arm mechanism to receive a light projection pattern for calculating a position and an orientation of the distal end portion of the arm mechanism, and an irradiation unit configured to form the light projection pattern on the member and on the object by irradiating the member and the object with pattern light. In addition, an image sensing unit senses an image of the object and is fixed at a position independent of the arm mechanism, and a first calculation unit calculates a position and an orientation of the distal end portion of the arm mechanism and an irradiation plane of the pattern light based on the light projection pattern formed on the member.

Abstract: An accelerometer system can include a sensor element comprising first and second proofmasses, the first proofmass accelerating in a first direction and the second proofmass accelerating in a second direction opposite the first direction in response to an external acceleration. A force rebalance controller applies control signals to at least one control element to provide a first force to accelerate the first proofmass toward a first null position and to at least one control element to provide a second force to accelerate the second proofmass toward a second null position. The force rebalance controller can also generate opposite polarity first and second output signals associated with respective displacements of the first and second proofmasses relative to the respective first and second null positions. An acceleration component calculates the external acceleration based on the first and second output signals.

Abstract: System, methods, and computer-readable media. A method includes transporting a mail piece, and during transport, determining physical dimensions of the mail piece. The method includes, during transport, determining a density profile of the mail piece using an x-ray scanner and determining a weight for the mail piece according to the physical characteristics and the density profile. The method includes selectively separating the mail piece during transport based on the determined weight.

Abstract: An apparatus and an article of manufacture for determining consistent wind power output include obtaining forecasted wind power production, actual wind power production from a wind power producer, a variable price of power measurement, a power storage battery state and capacity measurement, and a penalty measurement for wind power change of rate, and analyzing the forecasted wind power production, the variable price of power measurement, the power storage battery state and capacity measurement, and the penalty measurement for wind power change of rate to determine a consistent rate at which wind power is to be exported from the wind power producer to a grid.

Abstract: A method for determining consistent wind power output includes obtaining forecasted wind power production, actual wind power production from a wind power producer, a variable price of power measurement, a power storage battery state and capacity measurement, and a penalty measurement for wind power change of rate, and analyzing the forecasted wind power production, the variable price of power measurement, the power storage battery state and capacity measurement, and the penalty measurement for wind power change of rate to determine a consistent rate at which wind power is to be exported from the wind power producer to a grid.

Abstract: A portable measurement system is provided comprising a probe, two trackers, a receiver and a pod. A user interface control captures a location and position of the probe in a three-dimensional sensing space with respect to a coordinate system of the receiver from time of flight waveform analysis. The system suppresses a ringing portion of the received ultrasonic and minimizes distortion associated with ultrasonic transducer ring-down during high-resolution position tracking of the probe and the two trackers. Media is presented according to a customized use of the probe and two trackers during an operation workflow.

Abstract: A method of predicting a fault in a rolling bearing, the rolling bearing including inner and outer rings and rolling bodies evenly angularly distributed therebetween, the method comprising: processing (in the DSP system 8) a position signal (x(t)) indicative of a relative angular position of the inner ring with respect to the outer rings, and a vibration signal (y(t)) (by the accelerometer 7) indicative of speed-related vibrations in the rolling bearing, such that they correspond to either an angular displacement of the rolling bodies equal to an integer number of angular gaps between adjacent rolling bodies or an integer number of complete rotations of the inner ring with respect to the outer ring; space sampling (in the ND acquisition board 9) the processed vibration signal (y(t)) based on the processed position signal (x(t)); and predicting a fault in the rolling bearing based on the space-sampled vibration signal (y(t)).

Abstract: An electronic device includes a battery capacity computing unit configured to compute a current full-charge capacity of a currently inserted battery apparatus having secondary cells. The battery capacity computing unit acquires at least information on a full-charge capacity of the battery apparatus in a brand-new state and information on the battery charge/discharge cycle count from the battery apparatus, retains a correction coefficient used when computing the current full-charge capacity of the battery apparatus, and calculates the current full-charge capacity of the battery apparatus using the information on the full-charge capacity of the battery apparatus in a brand-new state, the information on the battery charge/discharge cycle count, and the correction coefficient.

Abstract: An assay device capable of assaying purity of a substance in an object includes a memory, an emitter, a receiver, a processing unit, and a display device. The memory stores names and standard densities of a number of substances. The emitter emits rays at the object. The receiver receives the rays reflected by the object. The processing unit calculates density of the object according to intensity of the emitted rays and intensity of the reflected rays. The processing unit further calculates purity of a selected substance in the object according to the density of the object and standard density of the selected substance stored in the memory, and outputs the calculated purity to the display device.

Abstract: An angle detecting device with self-calibration function, in which sensor heads are provided with an equiangular interval on a scale disc fixed to a rotating shaft, one sensor head is selected as reference, a sum of measurement differences between the reference and another sensor head is divided by the number of sensor heads, to determine an average, whereby a self-calibration value is obtained, in which a sensor head of the reference is changed to another in order, and the respective self-calibration value is obtained, which value is deviated by an angle of arrangement with respect to a particular sensor head, and a phase is aligned to a self-calibration value of the particular one as the reference, to determine an average for calculations of this phase conversion, which average is subtracted from the respective calculation subjected to the phase conversion, to obtain only asynchronous angular errors.

Abstract: A method of monitoring tooth brushing comprising: receiving a position signal from a position sensor (601) disposed on a toothbrush (21) comprising a handle and a head (22); receiving a force signal from a force sensor (602) disposed on the toothbrush (21); and calculating a position of the head of the toothbrush using the position signal in combination with the force signal.

Abstract: The present invention relates to a bidirectional 3 phase power meter for compensating reverse load flow and a method for metering thereby. According to the present invention, there is provided a bidirectional 3 phase power meter for compensating reverse load flow which allows calculating power receiving and power transmitting apparent power and power factor using the detected voltage/current and a method for metering thereby.

Abstract: Radial waves are generated in a borehole in a saturated porous earth formation. Measurements are made of the velocity of motion of the formation and the fluid in the formation. The difference in the velocities is indicative of formation permeability.