| 摘要 |
PURPOSE:To arrange the gas sensor for detecting the gas concentration in the culture chamber in the heating space whose temperature is a little higher than that of the culture chamber. CONSTITUTION:The culture box 1 comprises the outer box 2 lined with a thermal insulating material inside, the space 4 between the outer and inner boxes, the inner box 6 provided with the culture chamber 5 of high humidity inside, the heater 11 in the space 4 for heating the culture chamber 5 in the inner box 6 and the detector 19 for detecting the gas concentration in the culture chamber 5. The detector is composed of the path for allowing the gas in the culture chamber 5 to pass through, the gas sensors 23, 24, the air pump 21 and the filter 22 in the path. The detector is arranged in the space whose temperature is a little higher than that of the culture chamber 5 so that it is protected from the outer influences such as dropwise condensation and the outside air temperature. |
