Patent ID: 8191402
Filing Date: 2012-06-05
Classification: G01N,H01J,Y10T

Abstract:
1. A gas component monitoring device for monitoring components of the gas that has been synthesized in a gas introducing device for an analyzer, the gas introducing device comprising: a gas synthesis portion that synthesizes a plurality of types of gases in a mixing chamber; a pressure regulating portion that introduces the gas synthesized in the gas synthesis portion and decompresses the gas; a gas switching portion including a gas switching valve that performs switching so as to introduce the decompressed gas from the pressure regulating portion to the analyzer, and a gas analyzer that analyses a component of the synthesized gas, wherein the gas synthesis portion comprises a plurality of gas introducing paths leading from a plurality of gas sources to the mixing chamber via a pressure valve, a path for exhaustion from the mixing chamber to exterior via an open/close valve, and a path for introduction from the mixing chamber to the pressure regulating portion via a flow-control valve, the pressure regulating portion comprises an introducing chamber that introduces gas from the gas synthesis portion, a path provided with a pump that decompresses the gas introduced in the introducing chamber to a pressure ranging from about 0.1 Pa to 0.1 MPa, and a path leading from the introducing chamber to the gas switching portion, and the gas switching portion comprises a path guiding the gas from the pressure regulating portion to the analyzer via the gas switching valve, and a path for exhaustion to exterior via a pump.