The chamber had penetrations for a copper spiral water-heating coil, infusion pump, pressure transducer, temperature sensors, and electric cables, as well as breathing gas supply and exhaust.
The silicon iron steel plates with high magnetic permeability and alumina-dispersion-strengthened-copper bands were used as cores and coils of the pump electromagnet for operating in a high temperature.
The ultrasonic bath temperature was controlled by coupling with a cooling system using a cooling coil (Fisher Scientific Inc. St Louis USA) and water pump (model HJ-111, submersible pump, flow rate 250 L/h, Sunsun Inc., Zhejiang, China).
The sensing element consists of a "magnetic capsule", composed of a quasi-ideal permanent magnet with high Curie temperature and a Fe Ni alloy cylinder, mounted on the rotor, and a detecting coil stuck on the pump frame, where a voltage pulse is induced at every turn by the passage of the capsule.
In the example, there is a two hundred foot long coil of the sump pump hose and one of 300 foot (91.4 m) that was just added.
The TF coil inside circuit is pumped and purged 3 times with 10 ppm, pure helium gas before connecting the same with the HRL.
Figure 9 shows the four coil currents over one pumping cycle.
When the low-pressure gaseous refrigerant leaves the cooling coils, it goes through the pump and is pressurized.
As a results of tests, it was found that the performance was obtained in the heat pump unit using coil-2 design with less refrigerant circuit and a higher length of circuit with a superheat of around 6 K in both modes of operation.
The magnet's helium cold pump and gradient coils also produce mechanical vibrations that can be picked up by the EEG wires in the static magnetic field and converted to electrical noise.
