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Measurement and Control in Industrial Processes Using an Analog-to- digital Telemetry System.
McDonough-PJ; Isaacson-AE; Maysilles-JH
MISSING :24 pages
The Bureau of Mines designed and tested a hardware-software system for measuring on-line corrosion rates of materials in a rod mill in operation. Currents ranging from 10-6 to 10-3 a and potentials in 1- mv increments were converted to a digital signal. The digitized data were frequency-modulated and transmitted from a rotating ball mill to an fm receiver, where they were decoded by computer and then processes in real time using assembly language software. This design approach would allow accurate measurement and control of systems where signals of small amplitude and large ranges are present.
IH; Report of Investigations;
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division