Abstract: Thermal imaging systems are provided. An example thermal imaging system includes an infrared (IR) imager that acquires IR image data of a field of view of the IR imager. The thermal imaging system further includes video analysis circuitry operably coupled to the IR imager. The video analysis circuitry receives first temperature data of a first field reference within the field of view of the IR imager, receives second temperature data of a second field reference within the field of view of the IR imager, and receives IR image data from the IR imager. The video analysis circuitry calibrates the IR imager based upon the first temperature data, the second temperature data, and the IR image data. The thermal imaging system may further include a temperature control chamber enclosing the IR imager and configured to thermally isolate the IR imager and temperature sensors thermally coupled to the IR imager.

Abstract: In one embodiment, an infrared (IR) imaging system for determining a concentration of a target species in an object is disclosed. The imaging system can include an optical system including an optical focal plane array (FPA) unit. The optical system can have components defining at least two optical channels thereof, said at least two optical channels being spatially and spectrally different from one another. Each of the at least two optical channels can be positioned to transfer IR radiation incident on the optical system towards the optical FPA. The system can include a processing unit containing a processor that can be configured to acquire multispectral optical data representing said target species from the IR radiation received at the optical FPA. Said optical system and said processing unit can be contained together in a data acquisition and processing module configured to be worn or carried by a person.

Abstract: A control system optimized for low-power operation includes an electronic valve controller for controlling a hydraulic valve and a control interface for receiving operating commands from a user and communicating the operating commands to the electronic valve controller. The control interface includes a multi-function single hand control with a plurality of position indicating elements for detecting actuation of the single hand control, a master enable associated with all of the position indicating elements, and a plurality of individual enable elements each associated with one of the position indicating elements. A controller directs operation of the control interface and is configured to sample a position indicating element only if the master enable is asserted and the corresponding individual enable element is asserted. Other aspects of the control system minimize power consumption, including fast sampling that allows the controller to spend more time in a low power mode.

Abstract: A control system optimized for low-power operation includes an electronic valve controller for controlling a hydraulic valve and a control interface for receiving operating commands from a user and communicating the operating commands to the electronic valve controller. The control interface includes a multi-function single hand control with a plurality of position indicating elements for detecting actuation of the single hand control, a master enable associated with all of the position indicating elements, and a plurality of individual enable elements each associated with one of the position indicating elements. A controller directs operation of the control interface and is configured to sample a position indicating element only if the master enable is asserted and the corresponding individual enable element is asserted. Other aspects of the control system minimize power consumption, including fast sampling that allows the controller to spend more time in a low power mode.