ch_client = “kb123″; ch_width = 300; ch_height = 250; ch_type = “mpu”; ch_sid = “Chitika Default”; ch_backfill = 1; ch_color_site_link = “#0000CC”; ch_color_title = “#0000CC”; ch_color_border = “#FFFFFF”; ch_color_text = “#000000″; ch_color_bg = “#FFFFFF”; Magnetism is a result of electrons spinning on their own axis around the nucleus (Figure 18). In magnetic materials, the atoms [...]
Magnetic Bond Method The magnetic bond method was developed to overcome the problems of cages and stuffing boxes. The magnetic bond mechanism consists of a magnetic float which rises and falls with changes in level. The float travels outside of a non-magnetic tube which houses an inner magnet connected to a level indicator. When the [...]
Hot-Wire Anemometer The hot-wire anemometer, principally used in gas flow measurement, consists of an electrically heated, fine platinum wire which is immersed into the flow. As the fluid velocity increases, the rate of heat flow from the heated wire to the flow stream increases. Thus, a cooling effect on the wire electrode occurs, causing its [...]
Reed Switches Reed switches, illustrated in Figure 4, are more reliable than limit switches, due to their simplified construction. The switches are constructed of flexible ferrous strips (reeds) and are placed near the intended travel of the valve stem or control rod extension. When using reed switches, the extension used is a permanent magnet. As [...]
Electron-Ion Pair Ionization is the process of removing one or more electrons from a neutral atom. This results in the loss of units of negative charge by the affected atom. The atom becomes electrically positive (a positive ion). The products of a single ionizing event are called an electron-ion pair. Specific Ionization Specific ionization is [...]
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