Wake flow detection device for time correlation single photon counting and operation method of wake flow detection device

Abstract

The invention discloses a wake flow detection device based on time-dependent single photon counting and an operation method of the wake flow detection device, and belongs to the field of laser underwater wake flow target detection. The device includes a laser emitting assembly, a laser receiving assembly and an information processing assembly, wherein the laser emitting assembly and the laser receiving assembly are both electrically connected with the information processing assembly, and the laser emitting assembly is used for irradiating bubbles in wake flow with laser and synchronously transmitting an initial electric signal to the information processing assembly; the laser receiving assembly is used for receiving reflected light reflected by the bubbles in the wake flow and synchronously transmitting a termination electric signal to the information processing assembly; and the information processing assembly is used for receiving the initial electric signal transmitted by the laser transmitting assembly and the termination electric signal transmitted by the laser receiving assembly, completing photon flight time interval measurement and time-dependent single photon counter analysis, and finally calculating to obtain a target distance. According to the invention, detection of underwater weak wake flow echo signals can be realized, and the technical limitation of low sensitivity in the prior art is overcome.

Description

Technical field [0001] The present invention relates to a time-dependent single photon count, and its operating method thereof is a field of laser water. Background technique [0002] During the navigation process, the ship or submarine or the like causes the crushing of the propeller, which causes the crushing of the sea-surface wave and the volume of air in the vicinity of the water line, which forms a large amount of air bubbles, especially microbubble, geometric sizes of the tail field. It is more than 2 times more than the navigation body itself. Due to the length of the ship, the tail flow bubble can be detected on the ship's submarine. [0003] The main reason for the latch bubbles is constantly being attached to countries. It is its great application value for military attack and defense and civil use. It is currently mainly used to implement the surface ship detection, tracking and pursuit of water surface ships. In recent years, the rapid optical tail detection techniqu...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to propose a time-correlated single-photon counting wake detection device and its operating method to solve the problem that the existing wind tunnel does not fully simulate the influence of the building's indoor heating system on the snow on the roof

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