Measuring and testing – Volumetric content measuring
Patent
1971-08-26
1976-03-09
Myracle, Jerry W.
Measuring and testing
Volumetric content measuring
73 672, G01N 2900
Patent
active
039423697
ABSTRACT:
Resonant vibration is employed for imparting oscillations to a stressed wire, cable or metallic strip for the purpose of measuring its tension or for setting the vibrated member at a desired tension. A U-shaped magnetic resonator has an air gap to receive a stressed wire or cable and to impart vibrations thereto, the air gap being of such a width as to permit the received element to vibrate freely at its resonant frequency. The tension of the stressed element can be measured by varying the frequency of the resonator and noting when the condition of resonance exists or the tension of the element may be set by varying its tension while subjected to a steady predetermined pulsating magnetic flux field until the condition of resonance is noted. Either operation is performed in the absence of current flow through the stressed element.
REFERENCES:
patent: 1869884 (1932-08-01), Curtis
patent: 1908258 (1933-05-01), Klopsteg
patent: 2278510 (1942-04-01), Condon
patent: 2618970 (1952-11-01), Hitchcock et al.
Andrews Donald Allen
Manthiram Chockalingam
Roggenstein Edwin O.
Burroughs Corporation
Fish Paul W.
Myracle Jerry W.
Parker Ralzemond B.
Uren Edwin W.
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