Experimental setup for express measurements of the adiabatic temperature change in the room temperature range. The setup is intended for measurements of the magnetocaloric effect (MCE), namely adiabatic temperature change (ΔТ), in the temperature range from 273 to 370 K in order to get ΔТ versus temperature dependences rapidly and evaluate suitability of using of the material under investigation as a working body of magnetic refrigerators. The measurements in the setup are conducted by the direct method with the help of a thermocouple. The magnetic field change is accomplished by linear movement of the permanent magnet magnetic field source along the measuring insert. The setup operates in automatic mode under control of the program written on LabView. The setup includes: - the desktop measuring unit, - the desktop control unit, - the ΔТ measuring system, - the control computer. The enhanced algorithm of the setup operation makes possible to investigate up to 20 samples per day.
Germany
— Degaussing of pipes and metal sheets — Automatic degaussing before welding — Dependable degaussing for better welding results through stable welding process without magnetic deflection, minimisation of finishing work — activgauss (10–250 A) – degaussing during welding: — Avoids moving up of magnetic field during the welding process in case of very long and strongly magnetised components — Portable and robust — Quick connection at the pipe by means of three load cables — Use at -25 °C to +40 °C with mains voltage tolerances of +/- 20% Advantages of degaussing: — No deflection of the arc by residual magnetism in the workpiece — Prevention of lack of fusion due to insufficient sidewall fusion — Minimisation of finishing work — Cost-efficient and high-quality results — Set: Degauss 600 degaussing machine, two 5-metre, 35 mm² load cables, one 20-metre, 35 mm² load cable, RT DGS1 remote control and 5-m connection cable
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