Abstract: A battery balancing system includes an energy balancing circuit. Multiple battery cells are coupled to the energy balancing circuit. A health assessment circuit is coupled to the multiple battery cells and configured to sense a state of health and a charge of each of the multiple battery cells. The balancing circuit switches energy between the multiple battery cells as a function of the sensed state of health and state of charge of each of the multiple battery cells to balance charge there between.

Abstract: A battery balancing system includes an energy balancing circuit. Multiple battery cells are coupled to the energy balancing circuit. A health assessment circuit is coupled to the multiple battery cells and configured to sense a state of health and a charge of each of the multiple battery cells. The balancing circuit switches energy between the multiple battery cells as a function of the sensed state of health and state of charge of each of the multiple battery cells to balance charge there between.

Abstract: A battery balancing system includes an energy balancing circuit. Multiple battery cells are coupled to the energy balancing circuit. A health assessment circuit is coupled to the multiple battery cells and configured to sense a state of health and a charge of each of the multiple battery cells. The balancing circuit switches energy between the multiple battery cells as a function of the sensed state of health and state of charge of each of the multiple battery cells to balance charge there between.

Abstract: A battery balancing system includes an energy balancing circuit. Multiple battery cells are coupled to the energy balancing circuit. A health assessment circuit is coupled to the multiple battery cells and configured to sense a state of health and a charge of each of the multiple battery cells. The balancing circuit switches energy between the multiple battery cells as a function of the sensed state of health and state of charge of each of the multiple battery cells to balance charge there between.

Abstract: A method and system for seal failure annunciation comprises a process connector connected to a probe used to measure a product level in a tank. A pulse generation module generates a pulse that is propagated through a voided space in the process connector and a detector module configured to receive the echo curve from the interrogation pulse. A logic module is used to evaluate the received echo curve to determine if a seal in the process connector has failed. When the logic module indicates seal failure, an alarm module initiates an alarm indicating said seal in said process connector has failed.

Abstract: An apparatus includes at least one processing device configured to determine an optimal pulse width for obtaining level measurements associated with material in a tank. The at least one processing device is also configured to generate a control signal that causes a transmitter of a guided wave radar (GWR) to transmit a signal having the optimal pulse width. The at least one processing device is further configured to send the control signal to the transmitter. The at least one processing device can also be configured to alter a length of the optimal pulse width in order to reduce false echoes detected by the GWR, reduce a size of an upper dead zone of the GWR, and/or detect a change of impedance to identify a fault of a process connector in the GWR.

Abstract: A method for sensing at least one level parameter of at least one liquid in a tank. At least one bulk acoustic wave (BAW) sensor is positioned inside the tank. Electrodes of the BAW sensor are at least switchably connected to a positive feedback loop across an amplifier to provide an electronic oscillator. At least one acoustic viscosity measurement is determined from an output of the electronic oscillator, wherein the output of the electronic oscillator is different when the BAW sensor contacts the liquid as compared to when the BAW sensor contacts air. The level parameter is determined from the acoustic viscosity measurement.

Abstract: A battery balancing system includes an energy balancing circuit. Multiple battery cells are coupled to the energy balancing circuit. A health assessment circuit is coupled to the multiple battery cells and configured to sense a state of health and a charge of each of the multiple battery cells. The balancing circuit switches energy between the multiple battery cells as a function of the sensed state of health and state of charge of each of the multiple battery cells to balance charge there between.

Abstract: An apparatus includes a sensor that receives a first electrical signal and provides a second electrical signal in response to the first electrical signal. The second electrical signal is based on at least one parameter monitored by the sensor. The apparatus also includes an antenna that converts first wireless signals into the first electrical signal and that converts the second electrical signal into second wireless signals. The antenna includes a substrate, conductive traces, and conductive interconnects. The conductive traces are formed on first and second surfaces of the substrate. The conductive interconnects couple the conductive traces, and the conductive interconnects and the conductive traces form at least one helical arm of the antenna. The conductive traces could be formed in various ways, such as by etching or direct printing. The conductive interconnects could also be formed in various ways, such as by filling vias in the substrate or direct printing.

Abstract: A method and system for seal failure annunciation comprises a process connector connected to a probe used to measure a product level in a tank. A pulse generation module generates a pulse that is propagated through a voided space in the process connector and a detector module configured to receive the echo curve from the interrogation pulse. A logic module is used to evaluate the received echo curve to determine if a seal in the process connector has failed. When the logic module indicates seal failure, an alarm module initiates an alarm indicating said seal in said process connector has failed.

Abstract: Sensors and methods of operating sensors are described herein. One sensor includes a number of III-nitride strain sensitive devices and a number of passive electrical components that connects each of them to one of the III-nitride strain sensitive devices.

Abstract: A coupling device for impedance matching a probe of a guided wave radar (GWR) system. A feed-through is for connecting to a coaxial cable or other transmission line connector that includes an inner conductor which connects to an output of a transceiver and an outer conductor that connects to an outer metal sleeve. A subwavelength coaxial transmission line (CTL) having a length from ?/5 to ?/2 is coupled to the feed-through including an inner conductor connected to the inner conductor of the feed-through and an outer conductor connected to the outer metal sleeve. A mode converter (MC) having a plurality of metal fingers (7) of length 2?± twenty percent is connected to the outer conductor of the subwavelength CTL, where the MC includes a dielectric coating on its inner conductor connected to the inner conductor of the subwavelength CTL.

Abstract: A dynamic strain sensor includes a strain sensitive transistor and a light emitting diode coupled to the strain sensitive transistor. The dynamic strain sensor can include a piezoelectric layer incorporated into the structure of the strain sensitive transistor. The dynamic strain sensor can sense dynamic strain and can measure and monitor the dynamic strain wirelessly.

Abstract: A coupling device for coupling a threaded feed-through of a process connection to provide a launcher for a non-metallic storage tank. The storage tank includes a tank aperture in its top surface. The coupling device includes a foil nozzle including an inner upper metal foil surface that includes a threaded aperture for securing the feed-through thereto, and a first and second lower metal foil surface on respective sides of the upper metal foil surface. The foil nozzle also includes a first and a second foil level transition region disposed between the respective sides of the inner upper metal foil surface and the first and second lower metal foil surface. The foil nozzle can be configured in a cylindrical, horn, or a corrugated horn shape.

Abstract: An apparatus includes a sensor that receives a first electrical signal and provides a second electrical signal in response to the first electrical signal. The second electrical signal is based on at least one parameter monitored by the sensor. The apparatus also includes an antenna that converts first wireless signals into the first electrical signal and that converts the second electrical signal into second wireless signals. The antenna includes a substrate, conductive traces, and conductive interconnects. The conductive traces are formed on first and second surfaces of the substrate. The conductive interconnects couple the conductive traces, and the conductive interconnects and the conductive traces form at least one helical arm of the antenna. The conductive traces could be formed in various ways, such as by etching or direct printing. The conductive interconnects could also be formed in various ways, such as by filling vias in the substrate or direct printing.

Abstract: A coaxial feed-through device (feed-through) for coupling a received process connection to a storage tank (tank) including an inner electrical conductor (probe), an outer electrical conductor; and a dielectric sleeve disposed between the probe and the outer electrical conductor. The dielectric sleeve is configured to provide an upper coaxial transmission line segment (upper CTL segment) providing a substantially 50 ohm impedance and a lower coaxial transmission line segment (lower CTL segment) which includes one or more sub-segments having an impedance that is at least forty (40%) percent higher as compared to the substantially 50 ohm impedance.

Abstract: The present disclosure relates to a touch sensor and touch sensitive display having a plurality of first and second conductive lines arranged substantially orthogonally with a sensing material to sense a change in capacitance between them. The first and second conductive lines and the sensing material defining an array of sensitive transistors.

Abstract: An apparatus includes at least one processing device configured to determine an optimal pulse width for obtaining level measurements associated with material in a tank. The at least one processing device is also configured to generate a control signal that causes a transmitter of a guided wave radar (GWR) to transmit a signal having the optimal pulse width. The at least one processing device is further configured to send the control signal to the transmitter. The at least one processing device can also be configured to alter a length of the optimal pulse width in order to reduce false echoes detected by the GWR, reduce a size of an upper dead zone of the GWR, and/or detect a change of impedance to identify a fault of a process connector in the GWR.

Abstract: An apparatus includes a sensor that receives a first electrical signal and provides a second electrical signal in response to the first electrical signal. The second electrical signal is based on at least one parameter monitored by the sensor. The apparatus also includes an antenna that converts first wireless signals into the first electrical signal and that converts the second electrical signal into second wireless signals. The antenna includes a substrate, conductive traces, and conductive interconnects. The conductive traces are formed on first and second surfaces of the substrate. The conductive interconnects couple the conductive traces, and the conductive interconnects and the conductive traces form at least one helical arm of the antenna. The conductive traces could be formed in various ways, such as by etching or direct printing. The conductive interconnects could also be formed in various ways, such as by filling vias in the substrate or direct printing.

Abstract: An apparatus includes an antenna having multiple layers. At least a first of the layers includes both an effective medium and an electromagnetic bandgap (EBG) medium. The antenna could include a ground plane and a feed line, and the first layer of the antenna can be located between the ground plane and the feed line. The antenna could also include a slot ground and a planar antenna structure, and the first layer of the antenna could be located between the slot ground and the planar antenna structure. The antenna could further include a first substrate between a feed line and a slot ground and a second substrate covering a planar antenna structure, and the first layer could include one of the first and second substrates.