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Il Nuovo Cimento (1943-1954)

, Volume 8, Issue 5, pp 345–348 | Cite as

Dispositivo per il controllo automatico della pressione in un impianto ad alto vuoto

  • M. Chiozzotto
Note Techniche

Riassunto

Viene descritto un dispositivo atto a pilotare automaticamente le pompe rotative destinate a produrre il vuoto preliminare necessario per il funzionamento delle pompe a diffusione in un impianto ad alto vuoto.

Summary

An apparatus is described which controls automatically the working of the forepumps in a high-vacuum system. In this apparatus a Pirani vacuum-gauge controls the starting of the pumps and the subsequent opening of a stop-cock placed in the vacuum-line between the rotary pumps and a vacuum reservoir when the pressure in the latter exceeds a certain pre-selected value, and the closing of the stop-cock and subsequent stopping of the pumps when the pressure has fallen below a second preselected value. The arrangement also ensures the closing of the stop-cock in case of a failure in the power-supply to the rotary pumps.

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Copyright information

© Società Italiana di Fisica 1951

Authors and Affiliations

  • M. Chiozzotto
    • 1
  1. 1.Laboratorio di Fisica dell'Istituto Superiore di SanitàRoma

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