atmospheric pressure
41pressure — [presh′ər] n. [OFr < L pressura, a pressing (LL(Ec), oppression, affliction) < pressus, pp. of premere, to PRESS1] 1. a pressing or being pressed; compression; squeezing 2. a condition of distress; oppression; affliction 3. a sense… …
42Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …
43Pressure — This article is about pressure in the physical sciences. For other uses, see Pressure (disambiguation). Pressure as exerted by particle collisions inside a closed container …
44pressure — pressureless, adj. /presh euhr/, n., v., pressured, pressuring. n. 1. the exertion of force upon a surface by an object, fluid, etc., in contact with it: the pressure of earth against a wall. 2. Physics. force per unit area. Symbol: P Cf. stress… …
45Pressure sensor — Digital air pressure sensor Compact digital barometric pressure sensor A pressure sensor measure …
46Atmospheric diving suit — Divers do not even need to be skilled swimmers.The ADS has variously been referred to as an armored diving suit, armored diving dress, articulated diving suit, Iron Duke, Iron Mike, and deep sea diving robot . The term atmospheric diving suit… …
47pressure gauge — 1. an instrument for measuring the pressure of a gas or liquid. 2. an instrument used to determine the pressure in the bore or chamber of a gun when the charge explodes. [1860 65] * * * Instrument for measuring the condition of a fluid (liquid or …
48Atmospheric railway — An atmospheric railway is a railway that uses air pressure to provide power for propulsion. A pneumatic tube is laid between the rails, with a piston running in it suspended from the train through a sealable slot in the top of the tube. By means… …
49Pressure relief valve — A pressure relief valve is a safety device that relieve in case of overpressure in vessel or piping. The generic term is or pressure relief Valve (PRV) or pressure safety valve (PSV).Main types of pressure relief valves include: *Relief valve… …
50Atmospheric vacuum breaker — An Atmospheric Vacuum Breaker (AVB) is a backflow prevention device used in plumbing to prevent backflow of non potable liquids into the drinking water system. It is usually constructed of brass and resembles a 90 degree elbow with a hood on its… …
