Helium resonance lamp and a leak detection system using the lamp

Details Helium resonance lamp and a leak detection system using the lamp Helium resonance lamp and a leak detection system using the lamp

1975-02-18

1976-03-23

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

G01J 142

Patent

active

039462358

ABSTRACT:
A helium resonance lamp having a hollow cylindrical body including dielectric walls has a reentrant coaxial hollow element integral within said body and extending from one end thereof with an electrical conductor within said hollow element. A window partially transparent to 584A encloses the other end of said body. A hollow arm is integral with and extends from the body and contains a getter. High purity helium is maintained within the body at a pressure of 0.1 to 100 torr. The lamp is placed within a chamber connected to a vacuum system to be tested. Helium gas is sprayed near the suspected leak in the system. Helium entering the chamber from the system is detected and displayed.

REFERENCES:
patent: 3493805 (1970-02-01), Bass
patent: 3805077 (1974-04-01), D'Silva et al.
patent: 3826920 (1974-07-01), Woodroffe et al.

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