PHYSICAL QUANTITY MEASURING APPARATUS AND PHYSICAL QUANTITY MEASURING METHOD

• Main Author: SASAKI SHINICHI
• Format: Patent
• Language: English
• Published: 26.12.2013
• Subjects: HOROLOGY; PHYSICS; TIME-INTERVAL MEASURING

A physical quantity measuring apparatus includes: a signal input module receiving an input signal having consecutive pulses; a low resolution clock signal generator generating a low resolution clock signal; a high resolution clock signal generator generating a high resolution clock signal; a gate time generator outputting gate time signals at a predetermined interval; a low resolution clock signal synchronizer generating a low resolution clock synchronization signal; a low resolution counter counting the number of rising edges of the low resolution clock signal; a high resolution clock signal generation controller outputting the high resolution clock signal as a gated clock signal; a high resolution clock signal synchronizer generating a high resolution clock synchronization signal; and a high resolution counter counting the number of rising edges of the gated clock signal.