| 摘要 |
PURPOSE:To enable analysis without change of properties of sampled gas ingredients, by positioning operation of a sampling apparatus in a gas sampling position, operation of lifting the upper piston, operation of sampling gas between upper and lower pistons and operation of closing a gas sampling space. CONSTITUTION:A spring 18 is kept compressed by cords 21 and allow it to be occommodated in a cylindrical chamber 9 of a sampling apparatus 7 in a condition in which upper and lower pistons 12, 13 are brought in close vicinity, and after it is mounted to a probe (not shown), the assembly is positioned in the specified position in the furnace. Further, an electric current is applied to a heater 24 breaking the cards 21 by its heat and a rod 14 is lifted up by the spring 18 for lifting the upper piston 12 with lower piston 13 remaining as it is. Further, drawing gas by this upward stroke into the chamber 9 from a suction port 27, the lower piston 13 starts an upward travel also by a connecting wire 32 located between upper and lower pistons 12, 13, and the lower piston 13 passes the suction port 27 and the upper piston 12 hits a cylinder head 8b to be stopped. And, the gas sampled between upper and lower pistons 12, 13 is discharged to the analyzing apparatus by pushing down the rod 14. |
