What is a Philips Gauge and How Does it Work for Measuring Pressure?

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SUMMARY

A Philips Gauge, also known as a cold cathode gauge, is utilized for measuring low atmospheric pressures, particularly in high-altitude research contexts. It operates alongside other gauges such as bellows and Pirani gauges to cover a pressure range of 108 mmHg. The discussion highlights its application in historical research involving the V-2 rocket at White Sands, New Mexico. For further understanding, users are encouraged to explore additional resources on cold cathode technology.

PREREQUISITES
  • Understanding of atmospheric pressure measurement techniques
  • Familiarity with cold cathode gauge technology
  • Knowledge of the V-2 rocket's role in high-altitude research
  • Basic principles of vacuum technology
NEXT STEPS
  • Research the operational principles of cold cathode gauges
  • Explore the differences between Philips gauges and Penning gauges
  • Investigate the historical applications of the V-2 rocket in scientific research
  • Learn about the calibration methods for pressure measurement instruments
USEFUL FOR

Researchers in atmospheric science, engineers involved in vacuum technology, and anyone interested in the historical applications of pressure measurement in aerospace engineering will benefit from this discussion.

Lunar_Lander
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Hello,

I have read an interesting paper from the Proceedings of the American Philosophical Society about the use of the V-2 rocket at White Sands, New Mexico for high-altitude research. In it the different gauges for atmospheric pressure measurement were mentioned, as well as the difficulty to cover a pressure range of 108 mmHg.

The article then went on by explaining that the pressure is first measured by a bellows gauge, then by a Pirani gauge. For the lowest pressures either ionization or "Philips" Gauges would be used. I would like to know what a Philips Gauge is, because I did not find information on that on the Internet.

Thank you!
 
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