Abstract: Acceleration and attitude angles are measured by sensors mounted on a moving object and the measurement results are collected. The measurement results of acceleration are separated into low-frequency acceleration components and high-frequency acceleration components, and a time-rate-of-changes of attitude angles are calculated based on the measurement results of the attitude angles. After finishing extraction of the high-frequency acceleration components and the low-frequency acceleration components, and finishing calculation of the time-rate-of-changes of attitude angles, the rotation contributing acceleration and translation contributing acceleration are estimated based on the high-frequency acceleration components, the low-frequency acceleration components, the attitude angles and the time-rate-of-change of attitude angles.

Abstract: A method for determining the location of underground cables and pipes is disclosed. In some embodiments, the method includes measuring a set of electromagnetic field magnitudes and phases at a plurality of positions while traversing a target line parallelly using 3D electromagnetic coil sensors, the 3D electromagnetic coil sensors being orthogonally oriented to the target line, modeling a set of expected complex electromagnetic field magnitudes of a single underground conductor at each of the positions to form a set of values corresponding to a set of individual models for the target line, determining which of the set of individuals models is a best model, determining confidence information at each of the positions based on a comparison between the measured set of complex electromagnetic magnitudes and phases and the best model, and determining parameters at each of positions related to the target line from the best model.

Abstract: A line locator includes a signal detector to detect signals from an underground line; an error modeler that models a phase error in the signal from neighboring underground lines; and an enhanced electromagnetic field modeler that provides a location of the underground line based on the signal and a result from the error modeler.

Abstract: A machine diagnosing device includes a drive object driving force estimating unit for estimating drive object driving force based on a torque command value toward a servo motor which is acquired using a position command value, an elastic deformation error estimating unit for estimating an elastic deformation error of a ball screw with the drive object driving force, and a positional deviation calculating unit for calculating a positional deviation using a rotation position of the servo motor and the position of a table, and a machine damage diagnosing unit for diagnosing a machine damage by calculating a machine damage coefficient using the elastic deformation error and the positional deviation, comparing the obtained machine damage coefficient with a previously set threshold value, and diagnosing a damage state of the drive object.

Abstract: The invention discloses a paramagnetism-based remote temperature measurement method for magnetic nanoparticles, and the method comprises: applying multiple times of excited magnetic fields on the area of a magnetic nano sample, constructing an equation group between the different excited magnetic fields and corresponding magnetic susceptibilities according to the Langevin's paramagnetic theorem, and obtaining the information of temperature and sample concentration via the equation group. The invention is capable of more precisely and more quickly detecting the temperature of an object, and especially applicable for the detection of thermal motion at bio-molecular level. Experiments indicate the measurement error is less than 0.56K.

Abstract: A method for determining long-term offset drifts of acceleration sensors in a motor vehicle is provided. In one step, the longitudinal vehicle speed is determined in the vehicle's center of gravity. In another step, the share of the driving dynamics in the longitudinal reference acceleration formula and in the transversal reference acceleration formula is calculated from the longitudinal vehicle speed and the yaw rate. In yet another step, the share of the driving dynamics in the reference acceleration on the vehicle level formula is calculated by converting the driving dynamic reference accelerations formula calculated for the center of gravity to the position formula and the orientation of the sensor formula. In a further step, the long-term offset drift of the sensor is determined from the measured values of the sensor and the share of the measured value in the driving dynamics by means of a situation-dependent averaging process.

Abstract: Methods and systems for high-confidence utilization of datasets are disclosed. In one embodiment, the method includes selecting a metric for determining substantially optimal combination of true positives and false positives in a data set, applying an optimization technique, and obtaining, from the results of the optimization technique, a value for at least one optimization parameter, the value for at least one optimization parameter resulting in substantially optimal combination of true positives and false positives. A number of true positives and a number of false positives are a function of the one or more optimization parameters.

Abstract: A method of modeling the spatial variation in wind resource at a prospective wind farm site. The method involves calculating terrain exposure at multiple locations of interest, such as the locations of meteorological towers and prospective wind turbine locations. Measured average wind speeds from the meteorological tower locations are empirically correlated with terrain exposure to create a model wherein annual average wind speed can be calculated for any location on the site as a function of terrain exposure. The method can use upwind terrain exposure, downwind terrain exposure, or both. It can also be used together with terrain elevation to create a robust three parameter model. The method requires wind measurements from at least two meteorological towers, with improved performance when measurements are available from a larger number of meteorological towers.

Abstract: A method of correcting accelerometer and magnetometer measurements made in a well is provided. The method includes making a series of triaxial measurements with magnetometers and accelerometers in an interval of the well to derive measured values of gravitational acceleration g, magnetic filed intensity B, and the sine of the magnetic inclination sin I. The method also includes obtaining known values of g, B and sin I for the interval and determining values of a correction to be applied to the measured values by simultaneously minimizing the difference between the measured values and the known values of g, B and sin I for the interval. The method also includes applying the correction to the measured values to obtain in situ corrected values for g, B and sin I.

Abstract: A process for testing an integrated circuit includes collecting a set of points of a physical property while the integrated circuit is executing a multiplication, dividing the set of points into a plurality subsets of lateral points, calculating an estimation of the value of the physical property for each subset, and applying to the subset of lateral points a step of horizontal transversal statistical processing by using the estimations of the value of the physical property, to verify a hypothesis about the variables manipulated by the integrated circuit.

Abstract: A method for analysing blade displacements detected by circumferentially-spaced stationary timing probes associated with a rotating blade assembly, the displacements corresponding to times at which the blades pass the probes.

Abstract: A damage detection apparatus and method which detect a damage occurring in a specimen include energizing an inspection area on a specimen into a predetermined energized condition, measuring a potential difference at predetermined intervals in the inspection area, and analyzing an existence or otherwise of a damage, and a shape thereof, based on a plurality of items of potential difference data. Parameters specifying a hypothetical damage are hypothesized in advance and, based on the potential difference data, calculation is executed using a maximum likelihood estimation method on a double body in which hypothetical specimens are doubled by bringing together their front surfaces, and furthermore on a quadruple body quadrupled by bringing rear surfaces of hypothetical specimens together, a maximum likelihood estimation value of the parameters is calculated.

Abstract: Machine vibration baselines are synthesized without averaging historical vibration data. Instead machinery configuration information is used, including data about the machine train, the machine's rotating components, and the machine speeds. For each component being considered, a plurality of parameters is identified for deriving baseline portions. The parameters for one component are used to identify baseline vibration amplitude floor values, vibration amplitudes at frequencies corresponding to various harmonics of a rotational speed, and vibration amplitudes corresponding to forcing frequencies and their harmonics/sidebands. Parameters for other components also may be used to identify amplitudes at harmonic frequencies and forcing frequencies.

Abstract: A method to determine the misalignment and/or clearance of a door relative to its frame includes a phase to determine a law of variation of the clearance and/or misalignment values for the different inspection points, in relation to various opening positions of the door taken with respect to a reference position in which the door occupies its closed position, a measurement phase in which the door occupies any position relative to the frame, and during which the clearance and/or misalignment values are measured, and a phase to take into account the measured clearance and/or misalignment values and the law of variation so as to determine the true values of clearance and/or misalignment at the different inspection points corresponding to the door in its reference closed position.

Abstract: A method and system for incorporating electronic signature analysis in a low voltage power supply to centrally monitor current consumption is disclosed. The electrical loads powered by the low voltage power supply can be tested individually via an automatic test routine by measuring and scaling of current through a differential amplifier. The current consumption of each electrical load can be measured by analyzing a “delta” in the current draw of each electrical load's ON and OFF condition. This value can be compared against a stored table of high and low limits for each electrical load. If a load's current is outside the limits, it will be logged for repairs. A current sensing device can be inserted in series with the output(s) of the low voltage power supply, while in test mode, to allow the automatic test routine to run, and then be shorted out for normal operation.

Abstract: The present invention relates to a system for detecting the remaining quantity of liquid hydrogen stored in a hydrogen storage device. In this system, the remaining quantity of liquid hydrogen is calculated accurately without being affected by the previous state in a tank. The internal pressure of the tank is detected. A fixed heat quantity is applied into the liquid hydrogen. The pressure in the tank after the application of heat quantity is detected. The volume of phase-transited hydrogen gas is calculated based on the heat quantity applied into the tank. The change amount of pressure in the tank before and after the application of heat quantity is calculated based on the pressure and the pressure. The remaining quantity of liquid hydrogen in the tank is calculated based on the volume of hydrogen gas and the change amount of pressure.

Abstract: A method includes passing a lot through a production process and evaluating a statistical quality of the production process. Additionally, the method includes calculating an advanced process control (APC) recipe parameter adjustment (RPA) distribution value and determining if sampling is indicated. Furthermore, the method includes, if sampling is indicated, performing a measurement process of the lot.

Abstract: A state detecting apparatus S for detecting a current operating state of an LM (linear motion) system includes an AE sensor 1 generating a detection signal Sae by detecting an AE wave elastically generated when a plurality of balls contained in the LM system revolve in a circulation portion while spinning themselves; and a signal processing unit 4 generating a parameter indicating an intensity of the AE wave based on only the detection signal Sae corresponding to an operating frequency of the ball, and uses the parameter to determine a lubrication state of the LM system. Thereby, it is possible to provide the state detecting apparatus capable of predicting failure occurrence in the LM system; providing an improved maintenance to a user of the LM system and further longer lifetime thereof; and providing a performance guarantee and an improved quality of a device or equipment manufactured using the LM system.

Abstract: According to exemplary methods and systems of the present principles, the location of defective field repairable units (FRUS) of a circuit that have varying sizes or varying numbers of scan cells may be identified by employing tiles including scan cells from different FRUS. A set of test patterns may be scanned through the scan cells such that cells belonging to FRUs within a tile may be concealed while analyzing the response of scan cells in the tile contributed by a different FRU. Further, defective tiles are discoverable at any tile location and in any quantity within a maximal capacity using a compressed signature. In addition, signature registers that process data at a rate that is faster than the scan shift rate of the circuit may be employed during compression to multiply a circuit response by a plurality of components of a compression matrix during one scan shift cycle.

Abstract: A line locator includes a signal detector to detect signals from an underground line; an error modeler that models a phase error in the signal from neighboring underground lines; and an enhanced electromagnetic field modeler that provides a location of the underground line based on the signal and a result from the error modeler.