EXHAUST GAS ANALYZER

摘要

An exhaust gas analyzer that applies a laser beam to exhaust gas discharged from an internal combustion engine, receives the laser beam passed through the exhaust gas, and measures and analyzes, based on the received laser beam, the concentration and temperature of components contained in the exhausted gas. The gas analyzer has a sensor base (20) installed in a route where the exhaust gas flows and having an exhaust gas passage hole where the exhaust gas passes. The sensor base has an optical fiber (25) for emitting the laser beam, a detector (27) for receiving the laser beam, a sensor hole (23) for guiding the laser beam emitted from an irradiation section to the exhaust gas passage hole, and a sensor hole (24) for guiding the laser beam, having passed through the exhaust gas, to the detector (27). At least a portion of the sensor holes (23, 24) is filled with a glass body (40) which is a light transmitting member.