Method for measuring distance by using picosecond pulse-based high-accuracy laser distance measuring device

[0038] Embodiment 1 The ranging method of the present invention using a high-precision laser ranging device based on picosecond pulses. The high-precision means that the ranging accuracy of a target tens of kilometers away can reach 1 mm; it is characterized in that: It includes the following steps:

[0039] The high-precision laser ranging device based on picosecond pulses and the high-precision laser ranging device based on picosecond pulses used include laser 1, beam splitter I 2, beam splitter II3, telescope 4, photoelectric converter I 5 , Photoelectric converter II6, delayer 7, timer 8, interface converter 9, display 10, controller 11 and computer 12; among them, the laser 1 is in turn with the beam splitter I 2, on the optical axis of its output beam Connect beam splitter II3 and telescope 4;

[0040] The photoelectric converter I 5 is connected to the beam splitter I 2 and the delayer 7 respectively, the delayer 7 is connected to the timer 8 and the computer 12 respectively;

[0063] Embodiment 2 uses a distance measurement method based on a picosecond pulse-based high-precision laser distance measuring device. The laser 1 uses a Nd:YAG picosecond pulse laser with a wavelength of 266 nm; the rest are the same as in Embodiment 1.

[0064] Embodiment 3 uses a distance measurement method based on a picosecond pulse-based high-precision laser distance measuring device. The laser 1 uses a Nd:YAG picosecond pulse laser with a wavelength of 355 nm; the rest are the same as in Embodiment 1.