Automatic recording mcleod gauge.
Modified McLeod gauge which automatically records pressures
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Modified McLeod gauge which automatically records pressures
Automatic recording McLeod gage with three electrodes and solenoid valve connection
A low pressure gauge of the McLeod type demonstrating superior performance and measuring characteristics is described. A mercury reservoir which is kept in a vacuum at all times as well as bakeable glass components to reduce contamination are featured.
Accurate measurements in the ultrahigh vacuum range by a conventional McLeod gage requires degassing of the gage's glass walls. A closed system, in which mercury is forced into the gage by gravity alone, and in which the gage components are baked out for long periods, is used to achieve this degassing.
Modified McLeod gauge for automatic pressure recording
Photoionization mass spectrometer studies of ion-molecular reactions in oxygen-nitrogen atmosphere, and McLeod gauge measurements of ion source pressures