Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Patent
1997-05-05
1998-09-01
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With sample excitation
356417, G01N 2172
Patent
active
058018271
ABSTRACT:
In an analysis device, an auxiliary gas supplied from a compressor 1 is introduced from an auxiliary gas inlet 3 via a pipe 2 to a burner through a pressure regulator 5, a pressur meter 6, a pressure switch 7 and a connecting joint 8. On the other hand, a combustible gas supplied from a gas bomb 9 is introduced from a combustible gas inlet 11 via a pipe 10 to the burner through a first electromagnetic valve 12, a pressure regulator 13, a pressure meter 14, a needle valve 15, a second electromagnetic valve 16 and a connecting joint 17 and further via a tube. An auxiliary gas use block 4, on which auxiliary gas flow controlling elements such as the pressure regulator 5, the pressure meter 6 and the pressure switch 7 are secured, is provided independent and separated from a combustible gas use block 18, on which combustible gas flow controlling elements such as the first electromagnetic valve 12, the pressure regulator 13, the pressure meter 14, the needle valve 15 and the second electromagnetic valve 16 are secured. Whereby the analysis device using chemical combustion flame having an element safety is provided in which possible danger caused by such as the gas leakage and the gas mixing between the combustible gas passage and the auxiliary gas passage is further reduced.
Ebata Yoshisada
Kimoto Hisashi
Moriya Kazuo
Terui Yasushi
Tobe Hayato
Evans F. L.
Hitachi , Ltd.
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