Abstract: A temperature sensing device comprising a plurality of thermocouples in a hollow tube, where the thermocouples sensing tips contact the outer wall of the tube, and a heat flux source that heats the hollow tube. The hollow tube is inserted through a cross section of a pipe perpendicular to the longitudinal axis of the pipe. The apparatus measures a void fraction in a two-phase flow of a liquid-gas mixture flowing through the pipe. A process of measuring void fraction whereby the hollow tube is heated to an initial temperature, and in the presence of a liquid-gas mixture flow through the pipe the difference is calculated between the initial temperature of the tube and the temperature during liquid-gas mixture flow, to determine the void fraction in the two-phase flow of liquid-gas mixture through the pipe.

Abstract: A temperature sensing device comprising a plurality of thermocouples in a hollow tube, where the thermocouples sensing tips contact the outer wall of the tube, and a heat flux source that heats the hollow tube. The hollow tube is inserted through a cross section of a pipe perpendicular to the longitudinal axis of the pipe. The apparatus measures a void fraction in a two-phase flow of a liquid-gas mixture flowing through the pipe. A process of measuring void fraction whereby the hollow tube is heated to an initial temperature, and in the presence of a liquid-gas mixture flow through the pipe the difference is calculated between the initial temperature of the tube and the temperature during liquid-gas mixture flow, to determine the void fraction in the two-phase flow of liquid-gas mixture through the pipe.

Abstract: Manifold and probe assembly for use a bioprocessing vessel. The manifold has a chamber which communicates with the interior of the vessel and a plurality of ports which communicate with the chamber. Elongated sensing probes are threadedly connected to the ports with end portions of the probes extending into the chamber. Gaskets having generally annular bodies with conically inclined beveled faces are mounted on the end portions of the probes, with the beveled faces engaging conically inclined surfaces of seats in the ports and the gaskets being axially compressed and radially expanded into sealing engagement with the probes. The seating surfaces have inner and outer sections with different angles of inclination which produce greater radial expansion and tighter sealing with the probes.

Abstract: A method of testing magnetorheological fluid comprises cycling the fluid at an elevated temperature, allowing the fluid to stand, performance testing the fluid, cycling the fluid at superimposed frequencies, and noting settling characteristics of the fluid.