ambient pressure


Also found in: Medical.

ambient pressure

[′am·bē·ənt ′presh·ər]
(fluid mechanics)
The pressure of the surrounding medium, such as a gas or liquid, which comes into contact with an apparatus or with a reaction.

ambient pressure

In a water distribution system, the normal operating pressure at any particular location in the system.
References in periodicals archive ?
Eichhorn added that deaths among highly trained divers are mostly seen in the discipline called deep diving, a special type of apnea diving that combines the risk of prolonged apnea with changes of ambient pressure.
They found that under typical ambient pressure [beta]-boron--which is disordered with a random occupation of some sites in its crystal lattice--is the most stable form at temperatures as high as 2000 K.
In other words, it removes salts from water at ambient pressure and without the scaling barrier.
4 are valid not only for ambient pressure but also for pressures increased, it is possible to determine-based on the knowledge of the h'/h value at specific temperature and pressure conditions-also the [[eta].
The pistol case is protected against water, air and dust with its built-in ambient pressure equalization valve and O-ring seal.
CaseCruzer cases provide protection from water, air and dust with an ambient pressure equalization valve and O-ring seal.
The range includes models with internal seals as well as fully welded and flush front-sealed versions that measure pressure in absolute or barometric terms, or relative to ambient pressure.
The history of Lufft began in 1881 as master optician Gotthilf Lufft founded a machine shop to build barometers according to a simple, but ingenious principle: measure barometric pressure with a metal membrane box that would expand and contract as the ambient pressure changed.
For the precise calculation of pressure, the geometry of the pistons and cylinders at ambient pressure had to be known exactly: hence, Mahr says, PTB's use of the reference formtester from Mahr.
Air exchange with surrounding spaces is represented by one infiltrating (or exfiltrating) air flow to one ambient pressure.
The process involves ambient pressure and temperature and aqueous processing.
The NATO STANAG 3114 states that all indoctrination flight personnel shall experience the effects of changing ambient pressure and perform the techniques for normalizing the pressure.

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