Title :
A ROM-based high-accuracy line frequency and line frequency deviation meter
Author :
Banta, Larry E. ; Xia, Yongping
Author_Institution :
Dept. of Mech. & Aerosp. Eng., West Virginia Univ., Morgantown, WV, USA
fDate :
6/1/1990 12:00:00 AM
Abstract :
The meter is based entirely on basic digital circuits and does not include a microprocessor. A large-capacity ROM is used to convert the data, which are proportional to the line period, into line frequency and line frequency deviation. The meter provides 0.001-Hz resolution and an updating speed of 4 times per second. A computer algorithm for developing the ROM memory map is also presented. A prototype of the meter has been constructed and found to work well
Keywords :
computerised instrumentation; digital instrumentation; frequency measurement; frequency meters; power system measurement; read-only storage; ROM; ROM memory map; computer algorithm; digital circuits; frequency meter; line frequency deviation meter; power lines; prototype; Clocks; Costs; Counting circuits; Frequency conversion; Frequency measurement; Microprocessors; Read only memory; Semiconductor device measurement; Switches; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
