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2. Pressure measurement - Wikipedia

   en.wikipedia.org/wiki/Pressure_measurement

   Instruments used to measure and display pressure mechanically are called pressure gauges, vacuum gauges or compound gauges (vacuum & pressure). The widely used Bourdon gauge is a mechanical device, which both measures and indicates and is probably the best known type of gauge.

3. Diving chamber - Wikipedia

   en.wikipedia.org/wiki/Diving_chamber

   A caisson gauge is a high precision (typically 0.25% to 1% of full gauge scale) pressure gauge fitted to measure pressure of the interior of a chamber relative to ambient atmospheric pressure, and pressure differences between compartments of a sealed habitat separated by airlock hatches or doors, originally in the main pressurised compartment ...

4. Gauge (instrument) - Wikipedia

   en.wikipedia.org/wiki/Gauge_(instrument)

   All gauges can be divided into four main types, independent of their actual use. Analogue instrument meter with analogue display ("needles"). Until the later decades the most common basic type. [2] Digital instrument meter with analogue display. A screen that shows an "analogue meter", commonly used in modern aircraft cockpits, and some ...

5. Category:Pressure gauges - Wikipedia

   en.wikipedia.org/wiki/Category:Pressure_gauges

   Pertains to measuring instruments that measure atmospheric or underwater pressure. ... Tire-pressure gauge; V. Vacuum gauge This page was ...

6. Deadweight tester - Wikipedia

   en.wikipedia.org/wiki/Deadweight_tester

   A dead weight tester (DWT) is a calibration standard method that uses a piston cylinder on which a load is placed to make an equilibrium with an applied pressure underneath the piston. Deadweight testers are secondary standards which means that the pressure measured by a deadweight tester is defined through other quantities: length, mass and ...

7. Mercury pressure gauge - Wikipedia

   en.wikipedia.org/wiki/Mercury_pressure_gauge

   An open (differential) mercury pressure gauge. A mercury pressure gauge is a type of manometer using mercury as the working fluid. The most basic form of this instrument is a U-shaped glass tube filled with mercury. More complex versions deal with very high pressure or have better means of filling with mercury.