|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 2 인용 특허 : 0|
Apparatus for measuring gas pressures in vacuum type devices such as traveling-wave tubes is disclosed including an elongated hollow tube with negatively biased electrodes at each end. An axial magnetic field is induced in the chamber, and electrons are injected into the chamber and caused to travel in a confined beam substantially longitudinally between the two electrodes. Electrons will randomly hit gas molecules within the chamber and be deflected outwardly in stepped fashion to the wall of the tube. Electrons impinging upon the tube wall form a curre...
A device for measuring gas pressure in traveling-wave tubes comprising: an electrically conductive tubular body having an axial bore therethrough and having an entry end and another end; a cathode disposed near the entry end of said tubular body for dispensing electrons into the axial bore of said tubular body said cathode having a voltage; two insulating spacers, a first one of said two insulating spacers being attached to said entry end, and a second one of said two spacers being attached to said other end; an electrically conductive shield element att...