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

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...

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Bibliographische Detailangaben
Hauptverfasser: Luque, Phillip R, Haines, Robert E, Tyson, Ben B, Huffman, John W
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung: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.