The operating principle is the same as a vacuum tube gauge. However, the plate is substituted by the wire surrounded by a grid, while the cathode filament is outside. There are two types available: ...

From the ability to adjust gauges from the comfort of a desk (rather than scaling a ladder) to the ability to switch off the cold cathode during sputtering to extend the life of a high-vacuum ...

Vacuum gauges are devices for measuring vacuum or sub-atmospheric pressures. A vacuum is a space in which the pressure of a gas is low compared to the atmospheric pressure. The measure of vacuum is ...

The cold cathode field emission (FE) tip can become contaminated by gas particles in the system, deteriorating the quality of the electron beam. Therefore, the tip is "flashed", or quickly heated to a ...

Finally, cold cathode lights can be used for much more than illuminating the inside of your computer or making your whip look like it can hover. [James] discovered if he varied the voltage going ...

A cold cathode is a cathode in a gas-filled electron tube that is not heated by a filament. The voltage potential within the tube is sufficient to ionize the gas and cause the current to flow.

to a 230V pre-vacuum pump and a 230V pre-vacuum pump valve, two outputs for vent valves, and inputs from a Piranni gauge and a Cold Cathode Gauge, as well as a port for a TMP controller.

Learn more› by Sabine Heinlein Only a powerful plug-in upright or canister vacuum can truly deep-clean your carpets and floors. We recommend four. by Sabine Heinlein Robot vacuums never get ...

October 2024 A small apartment with a few area rugs has very different vacuum needs than a 2,000-square-foot house with wall-to-wall carpeting. The right vacuum for you also depends on your ...