| 摘要 |
PROBLEM TO BE SOLVED: To provide a measuring apparatus for gas composition in a gas using laser measurement.SOLUTION: A measuring apparatus for gas composition in a gas comprises: a light transmission optical fiber 23 for introducing a laser beam 22; a light receiving optical fiber 25 for leading out the laser beam; a gas introduction and light transmission optical fiber 11 having a hollow hole along a central axis and a plurality of fine pores formed in a clad at the periphery of the hollow hole; a first T-type connector 31 including a first connection 31a connected to one end 11a of the optical fiber 11, a second connection 31b connected to the light transmission optical fiber 23, and a gas introduction port 31c for introducing the gas 40 thereinto, and further introducing the introduced gas into the hollow hole of the optical fiber; and a second T-type connector 32 including a fourth connection 32b connecting the light receiving optical fiber to a third connection 32a connected to the other end 11b of the optical fiber 11, and a gas exhaust port 32c exhausting the gas to the outside, and exhausting the gas introduced into the hollow hole from the one end of the gas introduction and light transmission optical fiber 11. |
