MASS MEASURING DEVICE AND CANTILEVER

摘要

It is possible to measure micro masses of a plurality of objects to be measured all at once. It is necessary to prepare a multi- lever having a plurality of cantilevers in which a piezoeresistance element is embedded. Different measurement object attracting materials are painted on the multi-lever. The multi-lever is vibrated by a single vibrator. The vibration frequency is sweeped within a predetermined range so as to detect a resonance frequency of each of the cantilevers. The frequency change is detected before and after throwing of the of the respective measurement objects so as to calculate the mass changes.