Self-adjusting sand intrusion-prevention radar detecting trolley

Abstract

The invention discloses a self-adjusting sand intrusion-prevention radar detecting trolley. The structure of the self-adjusting sand intrusion-prevention radar detecting trolley comprises wheels, a main body, a balancer, a radar detection lower connector, and a sand-proof processing device. With the self-adjusting sand intrusion-prevention radar detecting trolley of the invention adopted, after sand enters joint gaps, the temperature of the interior of the trolley rises, a heat conduction bag and a memory alloy sheet expand thermally and deform after the temperature rises, so that a squeezingplate is pushed upward to squeeze out water from water absorption sponge; the sand is discharged to the lower part of the device; and due to the infiltration capacity of the water, the sand is completely wrapped by the water, so that the specific heat capacity of the sand is increased, and the temperature of the sand will not rise too fast. In the high-temperature environment of a desert, water inside the trolley is evaporated; a leak-proof condensing device inside the trolley automatically collects water vapor; the sand enables a thermal actuator to act in the temperature rise process, so that a sand collecting plate and a fixing plate are pushed open, and the sand inside is discharged; and therefore, too fast temperature rise inside the trolley due to the accumulation of too much sand can be avoided, and the false alarms of laser radar detection can be prevented.

Description

technical field [0001] The invention relates to the field of radar detection trolleys, in particular to a self-adjusting radar detection trolley to prevent wind and sand intrusion. Background technique [0002] Laser radar detection uses semiconductor lasers for output. For LFM continuous wave laser radar, when the radar detection car is placed on the desert, the formation of the desert is caused by natural weathering. The specific heat capacity of the sand in the desert is higher than The general material is relatively low. When detecting, the strong wind in the desert blows the sand into the joint of the radar detection, and its temperature rises relatively quickly. The change in the output characteristics of the semiconductor laser caused by the temperature change will be reflected at the receiving end. False targets are generated, which increases the false alarm probability of radar. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the p...

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Problems solved by technology

[0002] Laser radar detection uses semiconductor lasers for output. For LFM continuous wave laser radar, when the radar detection car is placed on the desert, the formation of the desert is caused by natural weathering. The specific heat capacity of the sand in the desert is higher than The general material is relatively low. When detecting, the strong wind in the desert blows the sand into the joint of the radar detection, and its temperature rises relatively quickly. The change in the output characteristics of the semiconductor laser caused by the temperature change will be reflected at the receiving end. False targets are generated, leading to an increase in the probability of radar false alarms

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