| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an instrument for measuring the concentration of atmospheric ions capable of measuring the concentration of the atmospheric ions with high precision. Ž<P>SOLUTION: The instrument 1 for measuring the concentration of the atmospheric ions includes a flow channel for permitting a gas containing the atmospheric ions 200 to flow, an inner cylinder 111 for measuring the concentration of the atmospheric ions 200 in the flow channel, a current value detector 120, and a wind velocity sensor 150 for detecting the wind velocity in the flow channel. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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