Precise pressure measurement in the range 0.1–500 torr

Gascoigne, J

doi:10.1016/0042-207x(71)90438-6

Cited by 25 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two capacitance manometers (Datametrics Barocel 570D (1 Torr FS) and 571D (100 Torr FS)) were used for the pressure measurements. The manometers were calibrated against each other and against a double-dead-weight tester system, the latter being constructed essentially as described by Gascoigne (1972). The error in the pressure measurement was estimated to be of around 0.2% or less at all pressures used.…”

Section: Apparatusmentioning

confidence: 99%

Transverse diffusion of lithium ions in helium

Skullerud¹,

Eide²,

Stefánsson³

1986

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

Section: Apparatusmentioning

confidence: 99%

Transverse diffusion of lithium ions in helium

Skullerud¹,

Eide²,

Stefánsson³

1986

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…The pressure is measured by determining the deflection of the quartz spiral tube as it unwinds or winds in response to a pressure difference across its wall. An accuracy of 0,l % over 2 % to 100 % of the measurement range extending over several years has been reported [3] for the mechanical readout type QBG. The long-term stability of these instruments has been studied at the Physikalisch-Technische Bundesanstalt, Berlin, Germany, where a stability of better than 0,02% over a period of one year for the electronic readout type gauge was ob-J.…”

Section: Introductionmentioning

confidence: 88%

Effect of Line Pressure on the Zero Stability of a Differential Quartz Bourdon Gauge for Various Gases

Sharma¹,

Sharma²

1993

Metrologia

View full text Add to dashboard Cite

In this paper results obtained on the effect of line pressure on the zero stability of a differential quartz Bourdon gauge are presented. The gauge studied has a helical fused-quartz Bourdon tube as the pressure-sensing element with an electromagnetic nulling device. The full scale pressure range of the gauge is 110 kPa. Zero shift values at different line pressures for various gases under different conditions have been measured. It is observed that when the line pressure is increased from an initial pressure of zero, the zero shift is negative: conversely, it is positive for decreasing line pressures. The magnitude of the zero shift for all the gases under different experimental conditions is found to be directly proportional to the change in the line pressure. The results obtained for helium and hydrogen show a completely different behaviour of the quartz Bourdon gauge from those observed for nitrogen, argon and oxygen. An analysis of the experimental results reveals that this gauge behaves in different ways with different gases. The possible causes of this behaviour are briefly discussed.

show abstract

“…The generation and measurement of small, stable absolute pressures, and differential gas pressures over a wide range of line pressures, became a topic of increasing interest in the late 1970s and early to mid-1980s. While emphasis was placed on line pressures around atmospheric [37], an intemational comparison was also reported by Dabom [38] at line pressures up to 8 MPa for differential pressures between 30 kPa and 150 P a , with uncertainties from f 7 Pa to f 38 Pa. The method of using twin piston gauges [39, 401 to measure small differential pressures at varying line pressures appears to have been the most popular.…”

Section: More Recent Developmentsmentioning

confidence: 99%

A Review of Gas-operated Piston Gauges

Ehrlich

1994

Metrologia

View full text Add to dashboard Cite

While hydraulic piston gauge technology dates from the mid-1800s, the first practical gas-lubricated pneumatic piston gauges for metrological applications were not developed until almost one hundred years later. The major reason for this delay was the need for adequate materials and machining technology to fabricate pistons and cylinders with tight enough tolerances for acceptable instrument operation. As the need for reduced uncertainties increased for gas pressure measurements in the ranges covered by manometry and above, technological improvement in gas-operated piston gauges advanced rapidly. Requirements for the development of high-quality air bearings added stimulus to the push for improved piston and cylinder technology. Investigations into the possible use of pneumatic piston gauges as primary pressure standards competitive with manometry had begun by 1965. Although lack of a fundamental detailed model of the vertical momentum transfer from the moving gas to the flanks of the piston currently somewhat limits this application, improvements in understanding and technology are continually being made. The relatively recent discoveries of the sometimes significant dependence of the effective area of certain pneumatic piston gauges on the gas species used during operation, or on whether the gauge is operating in the gauge or absolute mode, underscore the need for continued research in this field.

show abstract

Precise pressure measurement in the range 0.1–500 torr

Cited by 25 publications

References 0 publications

Transverse diffusion of lithium ions in helium

Transverse diffusion of lithium ions in helium

Effect of Line Pressure on the Zero Stability of a Differential Quartz Bourdon Gauge for Various Gases

A Review of Gas-operated Piston Gauges

Contact Info

Product

Resources

About