Abstract: An apparatus for diagnosing a battery may include a voltage measurement unit that measures a voltage of a battery cell, a fitting equation calculation unit that calculates a fitting equation for the voltage of the battery cell, and a diagnostic unit that diagnoses whether or not the battery cell is abnormal based on the fitting equation for the voltage of the battery cell.

Abstract: A motor commutation testing circuit is provided. When a commutation testing circuit determines that the motor commutation testing circuit enters a test mode, a selector circuit selects a commutation signal generating circuit and provides a simulated commutation signal generated by the commutation signal generating circuit to a control circuit. When the testing circuit determines that the motor commutation testing circuit enters a rotation detection mode, the selector circuit selects a motor rotation detecting circuit and provides a commutation signal of a motor that is detected by the motor rotation detecting circuit to the control circuit.

Abstract: A battery management system and method for performing a battery state and, optionally, health parameter observation is disclosed, in particular, cell state-of-charge (SOC) observation, with two redundant, independent and dissimilar lanes. Specifically, a SOC determination in a first one of the lanes is based on Coulomb Counting. The other lane employs a different algorithm than Coulomb Counting. In some embodiments, a battery health observation is further performed independently by the two lanes, wherein the first lane employs an aging model and the other lane a different (dissimilar) algorithm. On the basis of state and health observation, state (state of function) of the battery system can be predicted to determine a range of flight in accordance with a predetermined flight profile.

Abstract: The invention relates to a device for monitoring the position and/or location and/or movement of a tool to which an inertial sensor, such as a gyroscope sensor and/or an inertial sensor, is attached. A monitoring unit is provided in order to determine the position and/or location and/or movement of the tool on the basis of a specified starting situation using the detected sensor data. The device is characterized in that in order to calibrate the sensor(s), at least one image capturing unit is provided which is designed to capture one or more images of the tool at least at specified points in time or in intervals; an image analysis unit is provided for determining the position and/or location and/or movement of the tool; and the monitoring unit is designed to calibrate the sensor data in order to process the data.

Abstract: The present disclosure relates to a motor control system including: a motor control device, including a semiconductor integrated circuit having a memory and forming a control loop for a motor so as to control a drive of the motor; and an external debug device, externally connected to the motor control device and accessible to the memory in the motor control device. The external debug device includes a disturbance signal superimposer and a frequency characteristics deriver. The interference signal superimposer generates a disturbance signal for the control loop and superimposes the disturbance signal on a signal generated in the control loop. The frequency characteristics deriver derives frequency characteristics of the control loop based on the signal generated in the control loop by superimposition.

Abstract: A method for obtaining three-dimension measurements for an object utilizing a population of radio-frequency identification (RFID) chips in a medium includes placing the object into a container with the population of RFID chips in the medium. The method also includes capturing a plurality of coordinates for the population of RFID chips in the medium, where a set of coordinates from the plurality of coordinates correspond to each RFID chip from the population of RFID chips. The method includes plotting the plurality of coordinates for the population of RFID chips in the medium, wherein a plot of the plurality of coordinates provides a three-dimensional image of the object.

Abstract: A method and apparatus for determining safety of a battery are disclosed, where the method includes identifying a charge state or a discharge state of the battery, activating pulse probe currents at different depths of charge or discharge (charge/discharge) of the battery, in response to identifying the charge or discharge state of the battery, and detecting and differentiating between a state of short (SOS) and a state of health (SOH) of the battery based on variations of the pulse probe currents as a function of the depths of charge/discharge.

Abstract: A method and apparatus for measuring optical turbulence using an unmanned aerial vehicle are provided. The unmanned aerial vehicle may include a central body, at least one motor operatively connected to the central body, a mounting element, a three-dimensional anemometer mounted on the mounting element, a first differential temperature sensor mounted on the mounting element, a second differential temperature sensor mounted to the mounting element, and a base mounted to the central body via a payload mounting interface including a first barometric pressure sensor, a central processing board, memory operatively connected to the central processing board, and a processor configured to generate refractive-index structure coefficient information.

Abstract: Provided are methods of locating a well bore to optimize fluid extraction from a region of interest. In this manner, well production may be better predicted without having to go through the time and effort of drilling exploratory-type wells. The methods analyze semblance values of voxels within a full activity volume, and identify near well activity (NWA) voxels based on voxels that exceed the mean semblance value by a cut-off value. For example, the cut-off value may correspond to one or two standard deviations greater than the mean semblance value. Optimal fluid recovery corresponds to a well bore location at or near the putative location corresponding to the maximum number of NWA voxels in the region of interest.

Abstract: The present disclosure relates to an apparatus and a method for detecting an abnormality of a tool of a machine tool, and more particularly, to an apparatus and a method for correcting backlash of a machine tool, which are capable of repeatedly measuring a load of a workpiece transferring unit or a workpiece machining unit, and automatically detecting an abnormality of a tool based on a normal range of load data that are proportional to a standard deviation of the load data measured based on any one of a mode value, a mean value, or a median value of the repeatedly measured load data.

Abstract: A test and measurement instrument including a voltage source configured to output a source voltage, a current sensor, and one or more processors. The one or more processors are configured to determine an estimation of a load of an unknown connected device under test based on the source voltage, the current sensor, and a voltage of the connected device under test without any prior knowledge of the connected device under test.

Abstract: Aspects of the present disclosure include methods for determining baseline noise of a photodetector (e.g., in a light detection system of a particle analyzer). Methods according to certain embodiments include irradiating a sample having particles in a flow stream, detecting light with the photodetector from the irradiated flow stream, generating data signals from the detected light and calculating a moving average mean squared error of the generated data signals to determine the baseline of the photodetector. Systems (e.g., particle analyzers) having a light source and a light detection system that includes a photodetector for practicing the subject methods are also described. Integrated circuits and non-transitory computer readable storage medium are also provided.

Abstract: This application is directed to distributed fiber optic sensing particularly across multiple fiber optic ports with multiple corresponding fiber optic paths. A method is implemented to repeatedly a train of optical signals through a fiber optic network including a plurality of optical fibers distributed across a geographic area using at least one optical signal transmitter, sequentially distribute optical signals in the train through the plurality of optical fiber via corresponding optical fiber ports using an optical switching arrangement, receive backscattered optical signals from the plurality of optical fibers demodulate data from the backscattered optical signals, process the data to identify at least some of the low-frequency weight-induced disturbances, and/or sense the backscattered optical signals in a reduced frequency range. The method is useful to detect low frequency weight-induced disturbances for object tracking against high noise clutter in the higher frequency signal bands.

Abstract: Systems and methods include a computer-implemented method for inspection. Sensors are installed on locations susceptible to high temperature hydrogen attack (HTHA) on equipment used in hydrocarbon facilities. Attachment uses adaptable hybrid pads. Surface data captured using permanent sensors includes surface temperatures, per hydrogen (pH) measurements, and methane measurements for methane escaping from external surfaces of the equipment. Stress cracks in the equipment base metal are detected. An HTHA susceptibility analysis of the equipment is performed based on the presence of the cracks and by analyzing surface data and mapping potential HTHA cracks and locations of early signs of methane formation, including monitoring heat-affected zones (HAZ) and fusion lines of welds. Locations of the detected stress cracks caused by HTHA in metals are determined.

Abstract: Systems and methods for detecting or predicting a seismic event. The methods comprise, by a system: receiving at least one communication signal using a carrier recovery component with a fixed location remote from a source of the at least one communication signal; determining at least one of (i) phase deviations of the at least one communication signal over time and (ii) differential propagation delays over two paths which the at least one communication signal traveled; performing operations to detect patterns in at least one of the phase deviations and differential propagation delays that indicate an occurrence of seismic activity with level(s) of confidence; and using the level(s) of confidence to detect or predict the seismic event.

Abstract: A method for ascertaining an approximation and/or a prognosis for the true degradation state of a rechargeable battery. The method includes: providing a time sequence of values of the degradation state ascertained using measuring technology for past points in time; providing a trained HMM, which indicates, as a function of the true degradation state, at which probability during the ascertainment using measuring technology which particular value of the degradation state is monitored, and at which probability the true degradation state is maintained for what length of time, and/or at which probability this true degradation state transitions to which worse degradation state in the next time step; from the monitored time sequence and the HMM, the most probable characteristic of the true degradation state in the past that is in agreement with the monitored time sequence is ascertained; the desired approximation and/or prognosis is evaluated based on the most probable characteristic.

Abstract: A non-contact temperature measurement system for calculating estimated core body temperature is disclosed. The temperature measurement system can include a sensor that can detect the temperature of a patient and the temperature of ambient surrounding. The temperature of the patient and the ambient temperature can then be used to determine a core body temperature. The temperature measurement system includes an optical module having a light emitter and a light detector. The light emitter emits a beam of light towards the patient and the light detector detects a beam of light reflected by the patient. The reflected beam is analyzed to determine a distance between the temperature measurement system and the patient.

Abstract: The present application provides a rocket apparatus and a method for changing an electrical environment in a thunderstorm cloud. A corona probe and an atmospheric electric field detector analyzes and obtains, based on spin angular velocity information of a rocket and inclination attitude information of the rocket that are provided by a gravity gyroscope, accurate strength of a three-dimensional electric field and accurate polarity of a charge in the thunderstorm cloud. A charge-neutralizing agent module externally releases a charged agent whose polarity is opposite to the charge in the thunderstorm cloud, to consume the charge in the thunderstorm cloud via neutralization between a heterocharge carried by the charged agent and the charge in the thunderstorm cloud.

Abstract: A camera testing system for determining performance of a camera comprising an imaging sensor and a lens, the system comprising a processing system comprising at least one processor and memory. The processing system may be configured to: control the camera to capture, using the imaging sensor, a first image through the lens of a target disposed at a first distance from the camera; determine a first modulation transfer function (MTF) value from the first image; control the camera to capture, using the imaging sensor, a second image through the lens of the target disposed at a second distance from the camera that is different from the first distance; determine a second MTF value from the second image; and determine performance of the camera based on the first MTF value, the second MTF value and a difference between the first MTF value and the second MTF value.

Abstract: A sensor including a sensor element for acquiring a measuring signal, the measuring signal including at least one useful signal component in a useful signal frequency range and at least one interference signal component in an interference signal frequency range, and a readout circuit for converting the measuring signal into an analog electrical sensor signal. A feedback circuit is provided, which feeds back the output signal of the readout circuit to the input of the readout circuit at which the measuring signal is applied, and the total transmission function H(s) of the readout circuit and feedback circuit induces an attenuation of the analog sensor signal in the interference signal frequency range, while the analog sensor signal in the useful signal frequency range is not attenuated.