permanent magnet material
81якорь постоянного магнита — [IEV number 151 14 12] EN keeper high permeance piece of magnetic material placed across the poles of a permanent magnet to protect it from unintentional demagnetization or to reduce its external field [IEV number 151 14 12] FR court circuit… …
82Bolted joint — Bolted joints are one of the most common elements in construction and machine design. They consist of cap screws or studs that capture and join other parts, and are secured with the mating of screw threads.There are two main types of bolted joint …
83Superdiamagnetism — (or perfect diamagnetism) is a phenomenon occurring in certain materials at low temperatures, characterised by the complete absence of magnetic permeability (i.e. a magnetic susceptibility chi {v} = −1) and the exclusion of the interior magnetic… …
84Reed switch — Reed relay and reed switches Showing the contacts clearly The …
85Magnetic level gauge — A magnetic level gauge is used to measure the level of fluids. A magnetic level gauge includes a “floatable” device that can float both in high and low density fluids. Magnetic level gauges may also be designed to accommodate severe environmental …
86watch — /woch/, v.i. 1. to be alertly on the lookout, look attentively, or observe, as to see what comes, is done, or happens: to watch while an experiment is performed. 2. to look or wait attentively and expectantly (usually fol. by for): to watch for a …
87Cobalt — This article is about the metal. For other uses, see Cobalt (disambiguation). iron ← cobalt → nickel ↑ Co ↓ Rh …
88Rotary woofer — The Rotary Woofer is a subwoofer style loudspeaker which reproduces very low frequency content by using a conventional speaker voice coil s motion to change the pitch of a set of fan blades rotating at a constant speed. The pitch of the fan… …
89nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …
90Surface grinding — is used to produce a smooth finish on flat surfaces. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or non metallic substance from a workpiece, making a… …
