Abstract: A space conditioning system and method for monitoring electrical parameters and/or thermodynamic parameters relating to the heat of extraction/rejection or power consumption of the system and to communicate the monitored parameters to an external device.

Abstract: A space conditioning system and method for monitoring electrical parameters and/or thermodynamic parameters relating to the heat of extraction/rejection or power consumption of the system and to communicate the monitored parameters to an external device.

Abstract: A space conditioning system and method for monitoring electrical parameters and/or thermodynamic parameters relating to the heat of extraction/rejection or power consumption of the system and to communicate the monitored parameters to an external device.

Abstract: A system for coupling a modulated voltage signal onto a current loop between a host device and a field device, in various embodiments, can include a circuit and an impedance bridge. The circuit is configured to flow current from the field device between two terminals of an input circuit in the host device, wherein the two terminals are included in the current loop. The impedance bridge is positioned between the two terminals and configured to modulate impedance to convert the current in a field loop produced by the field device into terminal voltage modulation, without introducing a DC voltage burden to the current.

Abstract: A space conditioning system and method for monitoring electrical parameters and/or thermodynamic parameters relating to the heat of extraction/rejection or power consumption of the system and to communicate the monitored parameters to an external device.

Abstract: A system and method according to various embodiments can include a programmable current sink circuit that comprises a digital-to-analog converter (DAC). The DAC is programmable to set an adjustable magnitude of current sink so that a proper amount of current is jointly sunk from a plurality of inputs to generate a total sink current. With the adjustable current sink, redundant inputs, such as dual modular redundancy or triple modular redundancy, or simplex inputs can jointly sink the proper amount of current.

Abstract: Provided is programmable circuit for interfacing with a field device. The circuit includes only one analog-to-digital converter (ADC) configured to receive from the field device one from the group including a current signal and a voltage signal. The received one signal has frequency shift keying tones (FSK) superimposed thereon, the ADC being configured to extract information from the received one signal and the FSK tones simultaneously. Also included is only one digital-to-analog converter configured to drive an output signal to the field device, the output signal (i) including one from the group including a current signal and a voltage signal and (ii) being summed with an FSK-modulated signal.

Abstract: Provided is programmable circuit for interfacing with a field device. The circuit includes only one analog-to-digital converter (ADC) configured to receive from the field device one from the group including a current signal and a voltage signal. The received one signal has frequency shift keying tones (FSK) superimposed thereon, the ADC being configured to extract information from the received one signal and the FSK tones simultaneously. Also included is only one digital-to-analog converter configured to drive an output signal to the field device, the output signal (i) including one from the group including a current signal and a voltage signal and (ii) being summed with an FSK-modulated signal.

Abstract: A system and method according to various embodiments can include a programmable current sink circuit that comprises a digital-to-analog converter (DAC). The DAC is programmable to set an adjustable magnitude of current sink so that a proper amount of current is jointly sunk from a plurality of inputs to generate a total sink current. With the adjustable current sink, redundant inputs, such as dual modular redundancy or triple modular redundancy, or simplex inputs can jointly sink the proper amount of current.

Abstract: An air handler and an insert for the same are provided. The air handler has a housing, an air conditioning element, and a first air outlet in the housing. The air conditioning element is disposed in an air passage in the housing through which air is moved by a fan. At least one wall of the air passage within the housing tapers the air passage between the air conditioning element and the first air outlet.

Abstract: A system for coupling a modulated voltage signal onto a current loop between a host device and a field device, in various embodiments, can include a circuit and an impedance bridge. The circuit is configured to flow current from the field device between two terminals of an input circuit in the host device, wherein the two terminals are included in the current loop. The impedance bridge is positioned between the two terminals and configured to modulate impedance to convert the current in a field loop produced by the field device into terminal voltage modulation, without introducing a DC voltage burden to the current.

Abstract: A RTD measurement device comprises a current splitter connected to a single current source. The current splitter splits the current from the current source into two currents and continuously monitors the two currents and adjusts them to be the same value.

Abstract: A multi-zone air handler and method are provided. The multi-zone air handler comprises a housing, at least one return port in the housing, a first outlet port, a second outlet port, a first blower, a second blower, and at least one air conditioning element. The first outlet port of the housing is for coupling to a first duct. The second outlet port of the housing is for coupling to a second duct. The first blower is positioned in the housing to draw a first airflow from at least one of the at least one return ports, into a first air passage within the housing, and out through the first outlet port. The second blower is positioned in the housing to draw a second airflow from at least one of the at least one return ports, into a second air passage within the housing, and out through the second outlet port. The at least one air conditioning element is disposed in the first air passage and the second air passage for conditioning the first airflow and the second airflow.

Abstract: An input signal, including a process signal modulated with a sinusoidal signal, is converted from analog form to digital form. The converted input signal is filtered through a first programmable digital filter to extract the process signal. The converted input signal is filtered through a second programmable digital filter to extract the sinusoidal signal. A binary data signal is created based on the extracted sinusoidal signal.

Abstract: A pressure-swing adsorption process for producing a purified nitrogen trifluoride (NF3) product gas from a feed gas contaminated with carbon tetrafluoride (CF4) using a column packed with an adsorbent that exhibits selectivity for NF3 over CF4. The process separates the feed gas into a first product gas having a greater concentration of CF4 than the feed gas and a second product gas having a lesser concentration of CF4 without the use of an inert carrier gas while recovering essentially all of the NF3. The process includes filling the column with the feed gas until the column reaches a first pressure, removing the first product gas, and then removing the second product gas, where after the second product gas is removed the column is at a second pressure. A rinse gas of NF3 and CF4 may be used to remove the first product gas or the second product gas.

Abstract: A pressure-swing adsorption process for producing a purified nitrogen trifluoride (NF3) product gas from a feed gas contaminated with carbon tetrafluoride (CF4) using a column packed with an adsorbent that exhibits selectivity for NF3 over CF4. The process separates the feed gas into a first product gas having a greater concentration of CF4 than the feed gas and a second product gas having a lesser concentration of CF4 without the use of an inert carrier gas while recovering essentially all of the NF3. The process includes filling the column with the feed gas until the column reaches a first pressure, removing the first product gas, and then removing the second product gas, where after the second product gas is removed the column is at a second pressure. A rinse gas of NF3 and CF4 may be used to remove the first product gas or the second product gas.

Abstract: A method and system for measuring financial risk in logistics transactions is disclosed. Historical data from processing logistics transactions is reviewed with analysis tools to determine risk scores in key areas. The method may be updated for new components representing high risk in logistics and to refresh risk scores periodically. In embodiments, a module generates risk score results for a given client profile, which may include actual or estimated inputs for both activity levels and a control configuration. Control configuration inputs include not only the basic controls in place for risk mitigation, but also the data enhancements applied for every control as implemented by the client. The client data inputs originate from shippers, logistics service providers, financiers, auditors or other logistics ecosystem partners. The outputs include quantified risk score results in various formats, which may be accessed by computer, smart phone, tablet, mobile device, or via an Internet browser.

Abstract: Systems for communicating over a communication interface are provided. An integrated circuit includes circuitry for monitoring a current flowing between two terminals of the integrated circuit. The integrated circuit also includes a voltage driver circuit for modulating a voltage between two terminals of the integrated circuit. The voltage driver modulates the voltage across the two terminals of the integrated circuit to encode data according to the Highway Addressable Remote Transducer protocol.

Abstract: Systems for communicating over a communication interface are provided. An integrated circuit includes circuitry for monitoring a current flowing between two terminals of the integrated circuit. The integrated circuit also includes a voltage driver circuit for modulating a voltage between two terminals of the integrated circuit. The voltage driver modulates the voltage across the two terminals of the integrated circuit to encode data according to the Highway Addressable Remote Transducer protocol.

Abstract: A system and method have a choke in fluid communication with a rotating control device. The choke controls flow of drilling mud from the rotating control device to a gas separator during a controlled pressure drilling operation, such as managed pressure drilling (MPD) or underbalanced drilling (UBD). A probe is in fluid communication with the drilling mud between the choke and the gas separator. During operations, the probe evaluates gas in the drilling mud from the well passing from the choke to the gas separator.