Performance of an ionization gauge with a large‐angle ion deflector. I. Total pressure measurement in extreme high vacuum

1994 ◽  
Vol 12 (6) ◽  
pp. 3233-3238 ◽  
Author(s):  
C. Oshima ◽  
A. Otuka
Keyword(s):  
Pressure Measurement ◽  
Total Pressure ◽  
High Vacuum ◽  
Large Angle ◽  
Ionization Gauge

scholarly journals Total pressure measurement in extremely high vacuum region.

Shinku ◽  
1987 ◽  
Vol 30 (12) ◽  
pp. 968-973
Author(s):  
Toru KANAJI ◽  
Toshio URANO
Keyword(s):  
Pressure Measurement ◽  
Total Pressure ◽  
High Vacuum ◽  
Vacuum Region

Total Pressure Correction of a Sub-Miniature Five-Hole Probe in Areas of Pressure Gradients

2012 ◽  
Author(s):  
J. Town ◽  
A. Akturk ◽  
C. Camcı
Keyword(s):  
Pressure Measurement ◽  
Measurement Errors ◽  
Total Pressure ◽  
Pressure Gradients ◽  
Pressure Data ◽  
Flow Conditions ◽  
Complex Flow ◽  
Ducted Fan ◽  
The Difference ◽  
Best Fit

Five-hole probes, being a dependable and accurate aerodynamic tools, are excellent choices for measuring complex flow fields. However, total pressure gradients can induce measurement errors. The combined effect of the different flow conditions on the ports causes the measured total pressure to be prone to a greater error. This paper proposes a way to correct the total pressure measurement. The correction is based on the difference between the measured total pressure data of a Kiel probe and a sub-miniature prism-type five-hole probe. By comparing them in a ducted fan related flow field, a line of best fit was constructed. The line of best fit is dependent on the slope of the line in a total pressure versus span and difference in total pressure between the probes at the same location. A computer program, performs the comparison and creates the correction equation. The equation is subsequently applied to the five-hole probe total pressure measurement, and the other dependent values are adjusted. The validity of the correction is then tested by placing the Kiel probe and the five-hole probe in ducted fans with a variety of different tip clearances.

scholarly journals Determination of Vapor-Liquid Equilibrium from Total Pressure Measurement

1971 ◽  
Vol 14 (4) ◽  
pp. 252-256 ◽  
Author(s):  
Kunio Nagahama ◽  
Seijiro Suda ◽  
Toshikatsu Hakuta ◽  
Mitsuho Hirata
Keyword(s):  
Pressure Measurement ◽  
Total Pressure ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Vapor Liquid

Hot cathode ionization gauge calibration with the KRISS ultra-high vacuum standards

Metrologia ◽  
1999 ◽  
Vol 36 (6) ◽  
pp. 675-679 ◽  
Author(s):  
K H Chung ◽  
S S Hong ◽  
Y H Shin ◽  
J Y Lim ◽  
S K Lee ◽  
...  
Keyword(s):  
High Vacuum ◽  
Ultra High Vacuum ◽  
Ionization Gauge
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