METHOD OF MEASURING ATTENUATION COEFFICIENT AT THE CENTER OF PART OF NONUNIFORM ATMOSPHERE Russian patent published in 1995 - IPC

FIELD: optical detection and ranging. SUBSTANCE: light pulses are sent by the source, which moves along horizontal path, along the main vertical direction along the straight lines, which restrict part to be probed, along additional directions to the center of the part and along the directions, which are symmetrical to them relatively vertical axis. Attenuation coefficient is determined from reverse dissipation signals, which are received from several points of the part. EFFECT: improved precision of measurement. 1 dwg