Examples are disclosed for characterizing a transmission line. Sets of scatter parameters (s-parameters) associated with measured or modeled insertion loss (IL) or return loss (RL) values over a range of frequencies may be acquired for a transmission line. One or more parameter values for use in IL or RL fit functions may be adjusted to reach a threshold for a coefficient of determination (R.sup.2) value of a curve generated using the IL or RL fit functions to approximate the set of s-parameters over the range of frequencies. The IL or RL fit functions may then be used to generate other sets of s-parameters associated with IL or RL values for a recreated model of the transmission line. The other sets of s-parameters may be scaled to characterize transmission lines of various lengths. Other examples are described and claimed.

Methods and arrangements for localizing an outage in a power grid. An outage is detected in a power grid, the power grid including interconnected nodes. At least one candidate network topology (in the power grid) with respect to the outage is determined, and power consumption information and measured voltages relative to the nodes in the power grid are received. Voltage at a plurality of the nodes in the power grid is estimated based on the received power consumption information and on the at least one candidate network topology, and a location of the outage is estimated, based on the estimated node voltages and measured voltages. Other variants and embodiments are broadly contemplated herein.

A shunt resistor capable of reducing an absolute value of a temperature coefficient of resistance is disclosed. The shunt resistor includes: a base structure including a resistance element and a pair of electrodes; a bridge structure configured to bridge the pair of electrodes and made of a conductor; and connections configured to couple the pair of electrodes to the bridge structure. The bridge structure has a higher resistance than a resistance of the base structure at the connections.

The present invention relates to a shunt resistor and a method for manufacturing the shunt resistor. The present invention relates to a current detection device including a shunt resistor. The shunt resistor (1) comprises a resistance element (5) and a pair of electrodes (6, 7) connected to both ends (5a, 5b) of the resistance element (5) in a first direction. The shunt resistor (1) has a projecting portion (11) formed on a side surface (1a), which is parallel to the first direction, of the shunt resistor (1), and a recessed portion (12) formed in a side surface (1b), which is an opposite side of the side surface (1a), of the shunt resistor (1), and extending in the same direction as the projection (11). The projecting portion (11) has a portion of the resistance element (5) and portions of the pair of electrodes (6, 7), and the recessed portion (12) has a side surface (5d) of the resistance element (5) parallel to the first direction.

A voltage detection circuit includes a resistance dividing circuit containing a coarse adjustment variable resistance circuit and a fine adjustment variable resistance circuit, a coarse adjustment circuit controlling the coarse adjustment variable resistance circuit, a fine adjustment circuit controlling the fine adjustment variable resistance circuit, and a control circuit controlling the coarse adjustment circuit and the fine adjustment circuit based upon a detection signal of a comparator circuit.

An apparatus for detecting a change in a voltage level of a power supply is disclosed. An inverter coupled to a first power supply may generate a signal dependent upon a voltage level of a second power supply. A latch coupled to the first power supply may be set based on a first voltage level of the second power supply and a first value of the signal, and re-set based on a second voltage level of the second power supply and a second value of the signal different than the first value of the signal.

An analytical gateway device receives measurement data comprising one or more measurement values from one or more measurement devices. The gateway device selects a measurement application from a plurality of measurement applications available for execution (e.g., on the gateway device or some other computing device) based at least in part on the measurement data. For example, the measurement application can be selected based on measurement type information. The measurement type information may include one or more measurement units associated with the measurement values. The gateway device may cause a user interface (or some other information) associated with the measurement application to be presented on a display (e.g., a display of the gateway device or some other computing device in communication with the gateway device).

A control device of an imaging system has a computer with communication interfaces for central control of the imaging system, and components each having a communication interface for local control of units of the imaging system. The communication interfaces of the components are respectively connected via a connection with an interface of the computer, and a transmitting component, among the components transfers data via the computer to a receiving component, among the components, for the exchange of information between the components.

A remote radio frequency (RF) power sensing unit includes a first module and a second module. The first module may be configured to generate an analog signal representative of a power level of a radio frequency (RF) signal. The second module may be configured to (i) receive a particular frequency of a plurality of frequencies over a wireless communication channel from a device, (ii) generate a value conveying a magnitude of said power level of said RF signal in response to said analog signal, (iii) convert said value into a digital signal communicating said power level based on said particular frequency indexed into a table, and (iv) transmit said digital signal communicating said power level and information identifying said radio frequency power sensing unit over said wireless communication channel to said device.

A remote radio frequency (RF) power sensing unit includes a first module and a second module. The first module may be configured to generate an analog signal representative of a power level of a radio frequency (RF) signal. The second module may be configured to (i) receive a particular frequency of a plurality of frequencies over a wireless communication channel from a device, (ii) generate a value conveying a magnitude of said power level of said RF signal in response to said analog signal, (iii) convert said value into a digital signal communicating said power level based on said particular frequency indexed into a table, and (iv) transmit said digital signal communicating said power level and information identifying said radio frequency power sensing unit over said wireless communication channel to said device.