vacuum gauge

Definitions

  • WordNet 3.6
    • n vacuum gauge a gauge for indicating negative atmospheric pressure
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Webster's Revised Unabridged Dictionary
    • Vacuum gauge a species of barometer for determining the relative elasticities of the vapor in the condenser of a steam engine and the air.
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Usage

In literature:

Bourdon's steam and vacuum gauges.
"A Catechism of the Steam Engine" by John Bourne
The Steam-Engine Indicator, and the Improved Manometer, Steam and Vacuum Gauges; their Utility and Application.
"Atlantic Monthly,Volume 14, No. 82, August, 1864" by Various
Hence for any reading of the vacuum gauge in inches, G, the absolute pressure for any barometer reading in inches, B, will be (B - G) / 2.04.
"Steam, Its Generation and Use" by Babcock & Wilcox Co.
Mercury Gauges, all pressures, Steam, Hydraulic, and Vacuum.
"Scientific American, Vol. XLIII.--No. 1. [New Series.], July 3, 1880" by Various
Torricelli in the space at the top of his barometer (pressure-gauge) had produced what is called a Torricellian vacuum.
"An Introduction to the History of Science" by Walter Libby
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In news:

The gauges feature a frictionless gauge movement, and respond quickly to indicate low pressures, whether positive, negative (vacuum), or differential .
Features single-foam pad attachment, welded steel lifting frame, integrated vacuum guard system with check valves, gauge, and air filter.
Mico's new digital pressure gauge is reportedly designed with a pressure range of up to 10,000 PSI and is to be used in measuring hydraulic and vacuum pressures.
SMI's capabilities include pressure, twin-sheet, vacuum and thin-gauge forming.
Miniature vacuum gauge comes with dual scale for accurate indication of vacuum from 0 to 30 in.
A properly installed vacuum gauge , shown here adjacent to the filter on the outlet side, is easy to read and doesn't displace the T-handle.
A properly installed vacuum gauge, shown here adjacent to the filter on the outlet side, is easy to read and doesn't displace the T-handle.
TIGAR Mic™ is a mechanical analog display micron vacuum gauge kit designed to increase vacuum reading accuracy.
Counting molecules is a job for vacuum gauges, and it's now time to understand the differences between these devices and when to use them.
Counting molecules is a job for vacuum gauges, and it’s now time to understand the differences between these devices and when to use them.
Operators visit each vacuum station daily to check the charts, meters, and gauges.
The Tracerline TP-9365 PRO- Vac Vacuum /Micron Gauge, with its technologically advanced Pirani sensor, accurately displays the vacuum level at every stage in the evacuation cycle, from atmosphere down to one micron.
TP-9365 PRO- Vac Vacuum /Micron Gauge.
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In science:

The Higgs vacuum Vvac generates the fermionic masses as well the gauge bosons masses.
Left-Right Symmetric Models in Noncommutative Geometries?
For example, in the case of pure gauge theory with the SU (N ) gauge group the auxiliary Riemann surface has exactly the form (4.11) [107], where the coefficients of the polynomial PN (λ) are expressed through the vacuum values of the scalar fields (2.7).
String Theory or Field Theory?
Pure gauge representation for general vacuum background fields (Cartan forms) in the generalized AdS superspace identified with OS p(L, M ) is found.
Free Field Dynamics in the Generalized AdS (Super)Space
Our formalism allows one to write down explicit form of vacuum gauge connections (Cartan forms) in arbitrary coordinates, however.
Free Field Dynamics in the Generalized AdS (Super)Space
For a review of other works concerning the possible relation of non trivial gauge field strengths in the vacuum and confinement see ”The quark confinement model of hadrons”, eds. G.V.Efimov and M.A.
Scale Symmetry Breaking from the Dynamics of Maximal Rank Gauge Field Strengths
In the case of a real representation of the gauge group, the Green’s function G(z , z ′ ) should be realizable as the vacuum average of a time-ordered product, G(z , z ′ ) = i h0|T (cid:16)Σ(z) ΣT (z ′ )(cid:17)|0i ≡ i hΣ(z) ΣT (z ′ )i , for a real quantum field Σ(z).
Low-energy dynamics in N = 2 super QED: Two-loop approximation
Schwinger, “On gauge invariance and vacuum polarization,” Phys.
Low-energy dynamics in N = 2 super QED: Two-loop approximation
Here, the 10-parameter Poincar´e group of an initial massless gauge-invariant theory is reduced to the 8-parameter inhomogeneous group of the generalized Lorentz transformations, which assumes in this case the role of the relativistic symmetry group of the corresponding vacuum solution of the theory.
Concerning the generalized Lorentz symmetry and the generalization of the Dirac equation
Gauge independence of dimension two vacuum condensate in Yang-Mills theory is demonstrated by using a noncommutative theory technique.
Gauge invariance of dimension two condensate in Yang-Mills theory
Vacuum condensates are beleived to play an important role in nonperturbative dynamics of gauge fields.
Gauge invariance of dimension two condensate in Yang-Mills theory
Gauge invariance of the dimension two vacuum condensate may be proven by using a technique of noncommutative gauge theories.
Gauge invariance of dimension two condensate in Yang-Mills theory
It completes the proof of gauge invariance of dimension two vacuum condensate in the commutative SU (N ) Yang-Mills theory.
Gauge invariance of dimension two condensate in Yang-Mills theory
As is well-known, the vacuum structure of N = 2 gauge theories are described by a fibration of a Riemann surface (the Seiberg-Witten curve) o ver the moduli space.
String Theory and the Vacuum Structure of Confining Gauge Theories
Knowing the values of the moduli huk i in the particular N = 2 vacuum gives Nc equations for the matrix hΦi, which is enough in principle to determine hΦi up to gauge transformations.
String Theory and the Vacuum Structure of Confining Gauge Theories
The vacuum structure of N = 2 SuperQCD with classical gauge groups.
String Theory and the Vacuum Structure of Confining Gauge Theories
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