LIST OF ABBREVIATIONS AND SYMBOLS
δq | program-specified relative quantization error |
Δq | absolute quantization error |
Df | specified measuring range of frequencies |
fx | measurand frequency |
f0 | reference frequency |
F | greater of the two frequencies fx and f0 |
f | lower of the two frequencies fx and f0 |
fbound | lower frequency limit |
Fbound | upper frequency limit |
m | counter capacity |
Nδ | number, determined by the error δ = 1/Nδ |
Nx | number of periods of lower frequency f |
T | period of greater frequency (T = 1/F) |
τ | period of lower frequency (τ = 1/f) |
Tq | quantization window |
T0 | reference gate time interval |
ABS | antilock braking system |
ADC | analog-to-digital converter |
ALU | arithmetic logic unit |
ASIC | application specific integrated circuit |
ASIP | application specific instruction processor |
CAD | computer-aided design |
CMOS | complementary metal oxide semiconductor |
CT | counter |
DAC | digital-to-analog converter |
DAQ | data acquisition |
DFT | discrete Fourier transformation |
DSP | digital signal processor |
FCC | frequency-to-code converter |
FPGA | field-programmable gate array |
FS | full scale |
GUI | graphical user interface |
LCF | Liapunov characteristic function |
MDC | method of dependent count |
μK | microcontroller |
μP | microprocessor |
MSM | multichip module |
PCA | programable counter array |
PCM | program-oriented conversion method |
PWM | pulse width modulation |
RAM | random access memory |
ROM | read-only memory |
VFC | voltage-to-frequency converter |
VLSI | very large scale integration |
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