| 摘要 |
<P>PROBLEM TO BE SOLVED: To measure highly precisely an adsorbed amount of chemical components in air for a long time. Ž<P>SOLUTION: A measurement device 100 is provided for measuring an adsorbed amount of chemical components in air. The device 100 includes a measurement means to measure an adsorbed amount of chemical components adsorbed to a crystal oscillator 11 by exposing the crystal oscillator 11 in air and a removal means to remove the chemical components adsorbed to the crystal oscillator 11 by irradiating a main surface of the crystal oscillator with light. Thereby, the adsorbed amount of chemical components in air can be measured highly precisely for a long time. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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