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Title: THERMOCOUPLE VACUUM GAUGE

Abstract

A protector device is described for use in controlling the pressure within a cyclotron. In particular, an electrical circuit functions to actuate a vacuum pump when a predetermined low pressure is reached and disconnect the pump when the pressure increases abcve a certain value. The principal feature of the control circuit lies in the use of a voltage divider network at the input to a relay control tube comprising two parallel, adjustable resistances wherein one resistor is switched into the circuit when the relay connects the pump to a power source. With this arrangement the relay is energized at one input level received from a sensing element within the cyclotron chamber and is de-energized when a second input level, representing the higher pressure limit, is reached.

Inventors:
Issue Date:
OSTI Identifier:
4162450
Patent Number(s):
2685665
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
NSA Number:
NSA-14-021759
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
ENGINEERING AND EQUIPMENT; CIRCUITS; CONTROL; CYCLOTRONS; ELECTRIC POTENTIAL; ELECTRICITY; ELECTRON TUBES; POWER; PRESSURE; PUMPS; RELAYS; RESISTORS; SWITCHES; THERMOCOUPLES; VACUUM

Citation Formats

Price, G W. THERMOCOUPLE VACUUM GAUGE. United States: N. p., 1954. Web.
Price, G W. THERMOCOUPLE VACUUM GAUGE. United States.
Price, G W. Sun . "THERMOCOUPLE VACUUM GAUGE". United States.
@article{osti_4162450,
title = {THERMOCOUPLE VACUUM GAUGE},
author = {Price, G W},
abstractNote = {A protector device is described for use in controlling the pressure within a cyclotron. In particular, an electrical circuit functions to actuate a vacuum pump when a predetermined low pressure is reached and disconnect the pump when the pressure increases abcve a certain value. The principal feature of the control circuit lies in the use of a voltage divider network at the input to a relay control tube comprising two parallel, adjustable resistances wherein one resistor is switched into the circuit when the relay connects the pump to a power source. With this arrangement the relay is energized at one input level received from a sensing element within the cyclotron chamber and is de-energized when a second input level, representing the higher pressure limit, is reached.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1954},
month = {8}
}