Title :
The microprocessor measurement of low values of rotational speed and acceleration
Author :
Hancke, Gerhard P. ; Viljoen, Chris F T
Author_Institution :
Dept. of Electr. Eng., Pretoria Univ., South Africa
fDate :
12/1/1990 12:00:00 AM
Abstract :
An algorithm and its microprocessor implementation for the measurement of low values of rotational speed and acceleration/deceleration of rotating machinery are presented. This measuring technique was developed for the special application where the speed reference signal is derived from a pulse train at a frequency of only 1 pulse/r. This fact places severe constraints on the resolution and measuring time of the instrument because an inverse relationship exists between these two parameters. A special feature of this instrument is that it can estimate speed and rate-of-change of speed in between the speed reference pulses by extrapolation of historic data. The instrument is implemented using standard microprocessor components and supporting circuitry
Keywords :
acceleration measurement; angular velocity measurement; computerised instrumentation; electric machines; microcomputer applications; acceleration; deceleration measurement; extrapolation; microprocessor measurement; power generation; pulse train; rate-of-change of speed; rotating machinery; rotational speed; speed reference pulses; standard microprocessor components; Acceleration; Accelerometers; Frequency measurement; Instruments; Machinery; Microprocessors; Pulse measurements; Rotation measurement; Signal resolution; Velocity measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
