Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1995-04-17
1996-07-02
Noland, Thomas P.
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
36457105, G01C 2500
Patent
active
055310931
ABSTRACT:
A method for positioning a scanning instrument to point toward the center of the desired scan wherein the scan is achieved by rotating unbalanced masses (RUMs) rotating about fixed axes of rotation relative to and associated with the instrument, the RUMs being supported on drive shafts spaced from the center of the mass of the instrument and rotating 180 degrees out-of-phase with each other and in planes parallel to each other to achieve the scan. The elevation and cross-elevation angles of the instrument are sensed to determine any offset and offset time rate-of-change and the magnitude and direction are converted to a RUM cycle angular velocity component to be superimposed on the nominal velocity of the RUMs. This RUM angular velocity component modulates the RUM angular velocity to cause the speed of the RUMs to increase and decrease during each revolution to drive the instrument toward the desired center of the scan.
REFERENCES:
patent: 4488249 (1984-12-01), Baker
patent: 4498778 (1985-02-01), White
patent: 4791591 (1988-12-01), Asanuma et al.
patent: 5129600 (1992-07-01), Polites
patent: 5396815 (1995-03-01), Polites et al.
patent: 5430666 (1995-07-01), De Angelis et al.
Patent Abstracts of Japan Grp p. 151 vol. 6, No. 212 ABS Pub. Date Oct. 26, 1982 (57-118165) "Device for Measuring Electric Field Intensity".
Patent Abstracts of Japan Grp p. 544 vol. 11, No. 40 Abs. Pub. date Feb. 5, 1987 (61-210318) "Laser Beam Scanner".
Alhorn Dean C.
Polites Michael E.
Noland Thomas P.
Seemann Jerry L.
The United States of America as represented by the Administrator
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