| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inexpensive device capable of stably measuring ozone concentration for a long period. SOLUTION: The inside of this ethylene-removing device is divided into upper and lower parts by an ozone treating unit 104 and a UV lamp 103 is installed in a front catalyst chamber 107 in the lower part. In an upper rear catalyst chamber 111, a band pass filter 113, a half mirror 114, a first light- intercepting element 115 and a second element 116 are installed. An ozone concentration-measuring device 112 through which air in the rear catalyst chamber 111 flows and a reflecting mirror which reflects emitted lights by a UV lamp into the ozone concentration-measuring device 112 are also installed in the rear catalyst chamber 111 and the ozone concentration is measured by the light intensity accepted by the first and the second light-intercepting elements 115 and 116.</p> |
