Apparatus using resonance of a cavity to determine mass of a...

Details Apparatus using resonance of a cavity to determine mass of a... Apparatus using resonance of a cavity to determine mass of a...

2006-08-15

2006-08-15

Gibson, Randy W. (Department: 2841)

Weighing scales

Self-positioning

Electrical current generating or modifying

C073S580000, C271S003150

Reexamination Certificate

active

07091427

ABSTRACT:
A scale is provided, the scale including a cavity having a resonant frequency which is alterable with variations in mass of a load applied to the cavity. The scale also typically includes a comparator operatively coupled with the cavity to detect actual resonant frequency under the load, to compare such actual resonant frequency with a reference resonant frequency, and to produce a difference signal indicative of mass of the load.

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