| 摘要 |
PURPOSE:To guide air at an optical place to a sensor by providing a shaft equipped rotatably with a sampling pipe in a sampler main body which has plural sample air supply ports, and setting the tip of the pipe opposite supply ports. CONSTITUTION:Sample air supply ports 2 are provided to the sampler main body 1 and a pump connection port 6 and a sensor connection port 7 are formed; and the sampling pipe 15 communicating with the shaft 14 equipped with an air vent 17 is provided in the main body 1 and an opening end 19 is linked to the sensor connection port 17. Further, the shaft 14 is rotated by a driving part 22 to put the tip of the pipe 15 opposite to an air supply port 2 across a gap. Then, desired sample air sucked from the pump connection port 6 and sensor connection port 7 is sent to the sensor. Consequently, the constitution is reduced in size, the responsibility is improved, and an increase in measurement error due to produced dust is prevented. |
