by measuring variation of frictional resistance of gases

Full Title

Vacuum gauges > by measuring variation of frictional resistance of gases

Child Classifications

Navigate with arrow keys, Enter to open

• G01L 21/18 using a pendulum
• G01L 21/20 using members oscillating about a vertical axis
• G01L 21/22 using resonance effects of a vibrating body; Vacuum gauges of the Klumb type
• G01L 21/24 using rotating members; Vacuum gauges of the Langmuir type