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

Volume

39

Issue

6

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

1014

Lastpage

1017

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;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.65817

Filename

65817