Title :
Double buffered wide-range frequency measurement method for digital tachometers
Author_Institution :
Dept. of Electron., Belgrade Univ., Yugoslavia
fDate :
6/1/1991 12:00:00 AM
Abstract :
A new frequency measurement system suitable for a wide range of microprocessor-based applications is presented. The procedure used to calculate the frequency is based on the original double-buffered method. This new method utilizes both pulse counting, and measurement of the fractional pulse period during the fixed sampling time. The sampling time can be chosen to provide high accuracy and high resolution over a wide range of frequencies. Therefore, it is specially applicable in digital tachometers
Keywords :
angular velocity measurement; computerised instrumentation; digital instrumentation; frequency measurement; microcomputer applications; tachometers; Intel 80186 microprocessor; digital tachometers; double-buffered method; fixed sampling time; fractional pulse period; frequency measurement; pulse counting; shaft speed measurement; Clocks; Counting circuits; Frequency measurement; Pulse circuits; Pulse generation; Pulse measurements; Pulse shaping methods; Sampling methods; Signal processing; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
