Abstract: Meter electronics for geometric thermal compensation in a flow meter is provided according to the invention. The meter electronics includes an interface configured to receive sensor signals and a temperature signal (T) of the flow meter. The meter electronics further includes a processing system coupled with the interface and configured to receive the sensor signals and the temperature signal (T) and compute a geometric thermal compensation factor (TFe) for one or more flow conduits of the flow meter using the temperature signal (T). The geometric thermal compensation factor (TFe) is used to process the first and second sensor signals.

Abstract: A semiconductor device includes an element coupled between a first power supply line and a second power supply line, and a capacitor coupled between the first power supply line and the second power supply line. A capacitance value of the capacitor is estimated based on a first value that depends on a period of a change in an input signal input to the element and a change in an output signal output from the element, and a second value that depends on a voltage between the first power supply line and the second power supply line.

Abstract: A system and method to measure a delay of an individual logic gate in an unmodified form on a chip using a digitally reconfigurable ring oscillator (RO) that is on the chip is provided. A system of linear equations is established for different configuration settings of the ring oscillator and solved to determine a delay of an individual gate.

Abstract: A system and method for synchronizing otherwise independent oscillators private to I2C Bus slave devices. An I2C Bus master device can issue two new general call commands, CALIBRATE and ZERO COUNTERS. The I2C Bus slave devices respond to the CALIBRATE command by counting the number of cycles its local, private oscillator makes through during the communication transfer period of the CALIBRATE command on the I2C Bus. All such I2C Bus slave devices measure the same communication transfer period on the I2C Bus, so the differences in the digital measurements obtained by each of them are proportional to their respective oscillator frequencies. The digital measurements are privately used by each I2C Bus slave device to calculate appropriate oscillator prescale factors, and to automatically load the values that will harmonize the final product frequencies of all of the local oscillators on all of the I2C Bus slave devices in the system.

Abstract: An apparatus is provided for measuring a frequency-domain optical coherence tomography power spectrum from a sample. The apparatus includes a partially reflective element configured to be optically coupled to a light source and to the sample. A first portion of light from the light source is configured to be reflected by the partially reflective element. A second portion of light from the light source is configured to propagate through the partially reflective element, to impinge the sample, and to reflect from the sample. The apparatus is configured to receive the first and second portions of light and to measure the frequency-domain optical coherence tomography power spectrum in response to the first portion of light and the second portion of light.

Abstract: Electromagnetic field distribution is measured by considering time variations of a measured electric and/or magnetic field value. In response to scanning performed with a probe at an arbitrary set of measurement coordinates in a predetermined measurement plane in the vicinity of an object to be measured, a signal is detected at each of plural sets of coordinates in a measurement plane. Electric and magnetic fields are computed during a measurement time period at each set of measurement coordinates in the measurement plane based on measurement coordinates where the probe is positioned and the signal is detected with the probe. Amplitude probability distribution during the time period at each set of measurement coordinates in the vicinity of the object is computed based on the computed intensity, then mapped and displayed.

Abstract: In order to determine the operational parameters of a high-frequency power amplifier (1) (for example, complex forward and return voltage or power, complex load impedance, reflection or voltage standing wave ratio) on the connecting line (3) between the output of the high-frequency power amplifier (1) and a complex load, in particular, an antenna (4), an analog measured voltage Uu proportional to the complex voltage {right arrow over (U)} on the connecting line and an analog measured voltage Ui proportional to the complex current {right arrow over (I)} on the line (3) is determined by a Buschbeck coupling device. These measured voltages are digitized, and the required operational parameters can then be calculated in a computing unit (7) from these digital values.

Abstract: In order to determine various operational parameters of a power amplifier (for example, a complex load impedance or a complex forward and return power or a reflection factor or a voltage standing wave ratio) on a connecting line between an output of the power amplifier and a complex load, complex analog forward and return voltages on the connecting line are determined by an analog coupling device. These analog voltages are digitized and converted down into a baseband by one or more digital down-converters. From these digital values corresponding in absolute value and phase to the complex forward and return voltages and present in the baseband, desired operational parameters may then be calculated by a computer.

Abstract: Various techniques are described for high resolution time measurement using a programmable device, such as a field programmable gate array (FPGA). The timing may be triggered by any event, depending on the applications of use. Once triggering has occurred, a START pulse begins propagating through the FPGA. The pulse is able to propagate through the FPGA in a staggered manner traversing multiple FPGA columns to maximize the amount of time delay that may be achieved while minimizing the overall array size, and thus minimizing the resource utilization, of the FPGA. The FPGA timing delay is calibrated by measuring for the linear and non-linear differences in delay time of each unit circuit forming the staggered delay line path for the timing circuit. The FPGA is able to achieve nanosecond and sub-nanosecond time resolutions.

Abstract: A device for triggering a recording of a measured signal dependent upon at least one triggering event identifiable in a occurrence distribution of parameter pairs from two mutually-dependent parameters of the measured signal includes a discriminator for the identification of triggering events in each case with one frequency (NofTreffer) determined for the respective parameter pair and, in a first embodiment, disposed outside, and in a second embodiment, disposed inside, an upper and lower threshold value (UpperNofTreffer, LowerNofTreffer) associated with the respective parameter pair and for marking each occurring triggering event with the assistance of an activated first trigger marker (TrigMerk1) associated with the respective parameter pair. A memory is used for buffering at least the upper and lower threshold value (UpperNofTreffer, LowerNofTreffer) for every parameter pair.

Abstract: Systems and apparatus related to quantum resonance interferometry for detecting signals are described. A first signal is interferometrically coupled with a first quantum mechanical function to generate a first tunneling rate; a second signal is interferometrically coupled with a second quantum mechanical function to generate a second tunneling rate; the first tunneling rate and the second tunneling rate are interferometrically coupled to generate a third tunneling rate; and upon determining that the third tunneling rate is greater than a threshold, the second signal is identified as corresponding to the first signal.

Abstract: One of a first signal, a second signal, and a third signal is received respectively from each of three inputs. A pattern formed by the first signal, the second signal, and the third signal is compared to a set of predetermined patterns. Based on the comparing, it is determined whether an error exists. If an error condition exists, a specific one of the inputs is identified as a cause of the error.

Abstract: The invention relates to a method and a system for detecting the risk of icing on aerodynamic surfaces lapped by a fluid flow (F), in particular on load-bearing surfaces of fluid machines, of the type comprising a temperature sensor (20). The system is characterized in that the temperature sensor (20) is located close to the aerodynamic surface (5S) to be monitored for detecting the temperature of the surface (5S), and that the system comprises a rain sensor (30) located close to the surface (5S) for detecting the presence of water on that surface (5S). The system can thus detect the risk of icing on aerodynamic surfaces.

Abstract: A method of detecting a tsunami by using the global positioning system (GPS) is provided. The method includes distributing multiple GPS receivers over a sea surface in a target area, receiving signals from GPS satellites by the GPS receivers, and transmitting the signals and coordinates of the GPS receivers to a computer. The signals are then processed to acquire real-time monitoring data including the distribution of electrons in the ionosphere above the target area, and the occurrence of a tsunami is then determined based on the distribution of electrons.

Abstract: A method and device characterize linear properties of an electrical component having n>1 ports. The linear properties of the component are described in a matrix relating a voltage applied to the ports to a current through the ports. A frequency dependence of the matrix is approximated to preserve eigenvalues of the matrix by a pole-residual model. The method includes: (a) obtaining a set of values of the matrix at discrete frequencies, and obtaining eigenvalues and eigenvectors for each value; (b) fitting a set of vector equations to the eigenvalues and eigenvectors with a first set of pole frequencies; and (c) calculating a second set of pole frequencies by a vector fitting process for all modes of an element of the matrix. Steps (b) and (c) are repeated using the second set of pole frequencies in step (c) in a subsequent step (b) until a stop condition is met.

Abstract: A measuring device for displaying several time-variable electrical signals. The measuring device includes a front panel, which provides various operating elements, with a screen, which provides several display fields. The first display field provides at least one window, which corresponds to a given measurement channel, where the time-variable electrical signal is presented in this first display field and can be switched as a maximized display to the second display field. For each signal presented in maximized format in the second display field, a status field is then displayed in the corresponding first display field.

Abstract: A position detector for detecting the position of a helicopter blade includes a sensor to generate a signal in dependence on the position of a helicopter blade with respect to the sensor, and a data processing module arranged to receive the signal from the sensor and generate an output indicative of the blade position from the received signal. The sensor includes a mask having a plurality of slits, a lens assembly, and light detector. The lens assembly has a field of view and directs incident light onto a focal plane of the lens assembly. The light detector detects the level of illumination passing through each of the slits in the mask and provides a signal indicative of the illumination level to the data processing module. The mask is located at the focal plane of the lens assembly and the slits formed in the mask are angularly divergent from one another.

Abstract: At a worksite of a client, progeny nuclides of radon and thoron are collected into a filter, then making the gross measurement on ?-ray amount within an hour from the collection. Next, the filter is sent to an analysis center with information added thereto, such as collection-condition information, gross-measurement information, and sampling-worksite information. At the analysis center, the gross measurement on the filter sent thereto is made again. Also, the radioactive-nuclide analysis is made to perform evaluation of the radioactivity intensity. Moreover, radon amount and thoron amount at the measurement-specimen sampling points-in-time at the worksite are calculated, then reporting the analysis result of the radon and thoron amounts to the client.

Abstract: Described is a consumption monitoring device for monitoring the amount of consumables consumed by an animal during a monitoring period. More specifically, the consumption monitoring device measures the weight of the consumables, which are contained within a receptacle, and detects any change in the weight, such as when additional consumables are placed within the receptacle or when the animal consumes all or some of the consumables. The device calculates various values based on these changes in weight, at least one of which indicates the amount of consumables consumed by the animal. The device displays this calculated value such that the user is informed of the amount of consumables consumed by the animal within the monitoring period. This information assists the user in maintaining the animal on a desired feeding program.

Abstract: A method of measuring a power quality index. A total current waveform of an ingress from a customer, and a current waveform and a voltage waveform of each of at least one load installed at the customer are measured. A load composition (LC) of the customer using the total current waveform of the ingress and the current waveform of each of the at least one load is computed. A total harmonic distortion (THD) of each of the at least one load using the current waveform and the voltage waveform of each of the at least one load is computed. Thereafter, a distortion power quality index (DPQI) of each of the at least one load using the LC and the THD is computed.