| 摘要 |
<p>A SC cut crystal microbalance includes a SC cut crystal oscillator (1), a C mode/B mode switching-type oscillation circuit (2), a frequency counter (3), and a frequency information processing device (4), wherein the C mode/B mode switching-type oscillation circuit is switched by a signal received from the frequency information processing device, the frequencies of C mode and B mode is measured respectively, variations by temperature change are compensated from frequency variations of C mode based upon temperature information by the frequency change of B mode, and whereby mass change is measured.</p> |
