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Full-Text Articles in Engineering
Measurement Of Three-Dimensional Welding Torch Orientation For Manual Arc Welding Process, Yuming Zhang, Weijie Zhang
Measurement Of Three-Dimensional Welding Torch Orientation For Manual Arc Welding Process, Yuming Zhang, Weijie Zhang
Electrical and Computer Engineering Faculty Patents
Methods and systems are provided herein for measuring 3D apparatus (e.g., manual tool or tool accessory) orientation. Example implementations use an auto-nulling algorithm that incorporates a quaternion-based unscented Kalman filter. Example implementations use a miniature inertial measurement unit endowed with a tri-axis gyro and a tri-axis accelerometer. The auto-nulling algorithm serves as an in-line calibration procedure to compensate for the gyro drift, which has been verified to significantly improve the estimation accuracy in three-dimensions, especially in the heading estimation.
Method And Apparatus For Increasing Mass Transfer In Aqueous Gas Adsorption Processes, Kunlei Liu, Leland R. Widger, Zhen Fan, Joshuah Stolaroff
Method And Apparatus For Increasing Mass Transfer In Aqueous Gas Adsorption Processes, Kunlei Liu, Leland R. Widger, Zhen Fan, Joshuah Stolaroff
Center for Applied Energy Research Faculty Patents
A method of removing and capturing an acid gas from a fluid stream includes exposing the fluid stream to an aqueous scrubbing solution in the presence of a packing element including alternating hydrophobic and hydrophilic features or zones. A related apparatus is also disclosed.