Abstract: A system and method is provided for synchronizing a first and second signal of an exhaust sampling system. The first signal is generated by a first instrument and includes an exhaust flow rate component and a first instrument time stamp component. The second signal is generated by a second instrument and includes a pollutant concentration component and a second instrument time stamp component. The second instrument also generates a tertiary signal that has been influenced by the first signal and includes a second instrument time stamp component. A synchronization module determines a time relationship for synchronizing the first signal and the second signal by comparing the first flow rate component and the first instrument time stamp component of the first signal to the tertiary signal and the second instrument time stamp component of the tertiary signal. The synchronization provides accurate calculation of a pollutant mass flow rate.

Abstract: A meter register of the type having a sealed register body, and a member adapted to measure liquid flow through the meter and an antenna mounted within the register body is improved by providing a microprocessor adapted to have a calculated water meter maximum flow rate and a minimum flow rate defined as the meter flow rate range. The member co-acts with the microprocessor to determine flow rate, and the microprocessor is adapted to forward a signal to the antenna when the flow rate of the meter is outside, or within, the meter flow rate range, and the antenna transmits the signal to the water utility that the meter is not properly sized, or is properly sized, respectively.

Abstract: The present invention relates to a structural damage detection method for detecting damage of a structure. The method comprises scanning the surface of the structure with a tapper tapping with a tapping force at a predetermined frequency band while scanning; measuring the response signals transmitted from the surface of the structure; transforming the measured signals to acquire the signal spectrum at each position of the structure surface; intercepting from the signal spectrum a spectrum envelope; calculating a damage indicator at each position of the structure surface; and determining a position where the damage indicator changes abruptly as a position of structural damage. The present invention further relates to a structural damage detection system utilizing the structural damage detection method and a structural damage detection device for use therein.

Abstract: A fiber-optic current sensor includes a measuring unit having a light source and a light detector, and a sensing head having a sensing fiber wound around a conductor and a retarder connected to the sensing fiber. The scale factor as a function of current of the fiber-optic current sensor is described by the product of two scaling functions fe? and fs? for the measuring unit and the sensing head, respectively. The data describing the scaling functions fe?, fs? is stored in a memory of the measuring unit, while the data describing the scaling function fs? is also stored in a memory of the sensing head. Providing two such memory devices allows to store the scaling functions fe? and fs? separately, thereby turning the control unit as well as the sensor head into easily replaceable modules.

Abstract: A device for measuring the spring rate of a golf ball is disclosed. The device receives a golf ball between a first anvil and a second anvil. A force gauge is provided on one anvil. A displacer is provided on another anvil. Each anvil defines a ball receiving depression that is larger than the dimples of the golf ball to be measured for negating measurement effects due to golf ball dimples when measurement of the golf ball is conducted. The displacement an anvil is determined. From the force data and displacement data, a spring rate of the golf ball can be calculated and a compression scale value may be calculate and displayed on the device for informing a golfer that is operating the hand held device.

Abstract: A measurement system for capturing a transit time, phase, or frequency of energy waves propagating through a propagation medium is disclosed. The measurement system comprises a sensing module (200) and an insert dock (202). The sensing module (200) includes a load sensing platform (121), an accelerometer (122), and sensing assemblies (123). In one embodiment, a force or load applied by the muscular-skeletal system is measured. The force or load is applied to the sensing assembly (123). The accelerometer (122) generates motion data. The motion data includes acceleration data. The force or load measured by sensing assembly (123) in combination with the motion data captured by the accelerometer (122) is used to calculate a total force or load. A second accelerometer can be used to provide reference position information. The sensing assemblies (123) comprise a transducer (304), an elastic or compressible propagation structure (305), and a second transducer (314).

Abstract: Apparatus and method for non-invasively determining the level of a constituent of a patient's blood drawn though an elastomeric tubing to a dialysis machine deforms the tubing in the slot of a measuring head having two points of different transverse length with a transmit/receive sensor at each point that transmits a signal through the tubing and the blood and is reflected back to it from the tubing internal wall. The round trip transit time of the signal at each sensor is measured and the blood sound velocity is calculated from the two round trip transit times and the differential of the transverse lengths at the two points. Blood hematocrit level, which is related to blood volume, is calculated from the calculated sound velocity and an empirical relationship.

Abstract: A method of calibrating an ultrasound probe includes mounting an ultrasound probe onto a calibration system, transmitting an ultrasound test signal from an element of the probe through a test medium of the calibration system, and receiving the test signal on a matrix of hydrophones such that an element's position relative to other elements and other arrays within the same probe can be computed. Further, the system described herein is configured to detect the acoustic performance of elements of a probe and report the results to an end user or service provider.

Abstract: This patent deals with methods to extract and analyze seismic signals due to resonance phenomena in an enclosed oil, gas, or water reservoir, which are passively excited by seismic background noise, locating thereby the presence of the reservoir by doing qualitative and quantitative estimates via forward modeling. Measurements are first used in a qualitative analysis in eight steps. The influence of gas bubbles is important. A quantitative method in form of a numerical simulation using one of several specific physical concepts is used for further analysis. By using successive forward modeling, together with investigation and feedback and in conjunction with the Monte Carlo method, more details are gained. It is also possible to determine the fluid type. The uniqueness of the methods is first that it is purely passive; second it is directly sensitive to the oil or gas, because the resonance effect is only present for a fluid.

Abstract: An impedance matching system is provided. The impedance matching system includes an impedance matching apparatus and an impedance analysis apparatus. The impedance matching apparatus varies a capacitance value of a capacitor according to an applied voltage value, and matches an impedance according to the varied capacitance value. The impedance analysis apparatus supplies a voltage for varying the capacitance value to an impedance matching circuit, and determines an impedance value, changed according to the voltage value, to analyze characteristic of a capacitor included in the impedance matching apparatus.

Abstract: An apparatus for estimating a voltage of a secondary battery which includes a cathode including a first cathode material and a second cathode material with different activating voltage ranges, an anode including an anode material and a separator for separating the cathode from the anode. The apparatus includes a control unit configured to estimate a voltage of a secondary battery based on a circuit model including a first cathode material circuit, a second cathode material circuit and an anode material circuit, each circuit modeled to change its voltage according to a State Of Charge (SOC) of the electrode material corresponding the circuit and a current flowing through the circuit.

Abstract: A measuring apparatus (1; 1?) for measuring a manipulator (10), with a measuring body (2; 2?) having at least one measurement point (3; 3?) that is fixed in relation to the measuring body for determining a position (TTCP,3; TTCP,3?) relative to a reference point (TCP) that is fixed in relation to the manipulator, and an attaching device connected to the measuring body (2) for fixing on the surroundings, includes at least one calibration point (7; 7?) connected to the measuring apparatus for determining a position (TR, M; TR,M?) relative to the surroundings and/or at least one measurement point (6) positioned on the attaching device.

Abstract: A method for determining an offset angle of an electric machine, including a stator, a rotor, and a shaft connected to the rotor is described. The shaft is provided in a (generally) no-load state, and the rotor is positioned with respect to the stator at a field angle. A sensor angle is determined by measuring with the aid of an angle sensor. The offset angle is provided as a function of the difference between the field angle and the sensor angle, and the configuration of the rotor includes impressing a standing or rotating stator magnetic field which corresponds to the field angle. An angle detection device for carrying out the method is also described.

Abstract: Incorporating pseudo-surface pick locations in seismic velocity models. At least some of the illustrative embodiments are methods including: refining a seismic velocity model by correlating a predicted log to a measured log; creating a pseudo-surface pick location in a modeled subsurface horizon based on the correlating; modifying at least a portion of a seismic velocity model based on the pseudo-surface pick location; recalculating the modeled subsurface horizon based on the seismic velocity model, thereby creating a modified surface; and plotting the modified surface on a display device of a computer system.

Abstract: A computer-implemented method, system, and/or computer program product detects contaminants in a pipe that is transporting a known fluid. A baseline vibration pattern is established from readings generated by a smart sensor that is affixed to the pipe. This baseline vibration pattern is caused by a flow of the known fluid as the known fluid travels through the pipe in an unadulterated form. Subsequent readings from the smart sensor are taken to generate a new vibration pattern. In response to the new vibration pattern being different, beyond a predefined range, from the baseline vibration pattern, the new vibration pattern is matched to a known vibration pattern in order to identify a specific contaminant of the known fluid.

Abstract: An apparatus and a method for measuring fluid viscosity are revealed. An inlet end of a container is larger than an outlet end of the container. A fluid flows through the outlet end at a flow rate. A volume of the fluid flowing out of the outlet end is measured by a graduated cylinder while the time taken for the fluid to flow through the outlet end is measured by a timer. The flow rate is associated with the volume and the time of the fluid and the viscosity of the fluid is obtained according to a density and a pressure gradient of the fluid, an outlet end radius and the flow rate. The apparatus has simple structure, easy operation and maintenance. Moreover, less space is required and the apparatus cost is low. Therefore, the testability is improved, the measurement time is reduced, and the convenience in use is enhanced.

Abstract: Significant changes in monitored and reported operational parameters and/or power outage events occurring in a utility's electrical power transmission/distribution grid are correlated with historical, current and/or forecast weather events based on potential root cause, geographic and temporal constraints. Operational event and outage information is collected and time-stamped using a communication network of devices and sources that monitor and report, among other things, equipment parameters, electric power availability and outages. A computer-implemented root cause analysis engine (RCA) operatively associated with a computer-implemented weather data correlation engine sorts and analyzes operational parameter/event information and identifies probable correlations to localized weather phenomenon.

Abstract: A sensor module for a compressor having an electric motor connected to a power supply and a processor disposed within an electrical enclosure of the compressor is provided, with the electrical enclosure being configured to house electrical terminals for connecting the power supply to the electric motor. The sensor module includes a first input connected to a voltage sensor that generates a voltage signal corresponding to a voltage of the power supply and a second input connected to a current sensor that generates a current signal corresponding to a current of the power supply. The processor is connected to the first and second inputs. The processor may calculate a power factor of the compressor, detect an unexpected variation in the power supply, and/or detect a mechanical malfunction of the compressor based on the voltage measurements and the current measurements.

Abstract: A position detector includes detection coils for outputting two sinusoidal signals that have phases shifted from each other by 90 degrees; subtractors for eliminating offset components included in output signals DCA and DSC output from the detection coils; an interpolation calculator for converting the two signals DCA and DSC in which the offset components have been eliminated into position information IP; a radius calculator for calculating a root-sum-square of the two signals DC and DS output from the detection coils; correlation calculators for respectively multiplying a fluctuation component RDA of an output from the radius calculator by the signals DCA and DSC in which the offset components have been eliminated; low-pass filters (LPFs) for extracting DC components of output values output from the correlation calculators; and an outputter for outputting offset components including offset displacement fractions based on output values COMDC and SOMDC output from the LPFs.

Abstract: A non-contacting deviation measurement system projects a first line and a second line upon a surface of an object. The projections of the first line and second line are arranged to overlap at an intersection line oriented at a nominal location such that when the surface is oriented at the nominal location, the intersection line appears on the surface. As the location of the surface deviates from the nominal location, the first line and second line as projected upon the surface move away from one another. The distance between the lines may be used to calculate the deviation from the nominal location. The deviation calculated may be compared to a predetermined maximum allowable deviation.