- #1
gilnaz
- 1
- 0
Would anybody pleas tell me what's the difference between fine and coarse measurement? I am reading a paper named "Electronic distance measurement-An introduction" in which fine measurement and coarse measurement is mentioned. here is the exact paragraph:
"The transmitter includes a master oscillator, a digital divider (1: 100), a modulator and two infrared emitting diodes. The master oscillator (RTXO) produces the fine measurement frequency of 14.985400 MHz (- 15 MHz) corresponding to a unit length of 10 m. The coarse measurement frequency of 149.854 kHz (-150 kHz) is then derived by the divider."
for-mentioned paragraph is an explanation about a Kern DM500 distance meter and describing what's going on inside.
Any explanation in this regard is appreciated.
Regards,Gilnaz
"The transmitter includes a master oscillator, a digital divider (1: 100), a modulator and two infrared emitting diodes. The master oscillator (RTXO) produces the fine measurement frequency of 14.985400 MHz (- 15 MHz) corresponding to a unit length of 10 m. The coarse measurement frequency of 149.854 kHz (-150 kHz) is then derived by the divider."
for-mentioned paragraph is an explanation about a Kern DM500 distance meter and describing what's going on inside.
Any explanation in this regard is appreciated.
Regards,Gilnaz