Devices and method of measuring a mass

Details Devices and method of measuring a mass Devices and method of measuring a mass

2006-11-28

2006-11-28

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

Sensing apparatus

C073S504040, C073S504120

Reexamination Certificate

active

07140255

ABSTRACT:
A device1for measuring a mass comprises a vibrator2,driving means3A,3B,3C,3D for exciting a basic vibration in the vibrator2,detecting means4A,4B for detecting a displacement of vibration in the vibrator2and an adsorption film5capable of adsorbing a substance for detection. The mass is measured based on a difference between a detected value of the displacement of vibration obtained from the detecting means4A,4B when the mass is not measured and a detected value of the displacement of vibration obtained from the detecting means4A,4B when the mass is measured.

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