LASER PULSE RANGEFINDER Russian patent published in 2023 - IPC G01C3/08 G01S17/02 

FIELD: laser technology.

SUBSTANCE: invention relates to laser technology, namely to laser ranging equipment. The laser pulse rangefinder contains a pulsed laser with a laser pumping circuit, an avalanche photodiode with a bias source connected in series through an amplifier of received signals with a threshold circuit and a signal delay meter, a key is introduced between the amplifier output and the input of the threshold circuit, and the second and third thresholds are introduced at the amplifier output. circuit, the outputs of the threshold circuit and the third threshold circuit are connected in parallel, and the output of the second threshold circuit is connected to the inhibiting input of the key, and the threshold circuit threshold is set proportionally to the level of fluctuation noise at the amplifier output in the optimal avalanche gain mode, and the thresholds of the second and third threshold circuits are set according to the minimum and maximum amplitudes of microplasma pulses at the output of the amplifier in the same mode.

EFFECT: blocking microplasma interference.

2 cl, 2 dwg