Data acquisition device for testing void ratio of permeable pavement

The utility model discloses a data acquisition device for testing the void ratio of a permeable pavement. The data acquisition device comprises an X-ray image acquisition system, an image processing device and an image storage device which are connected in sequence, wherein the X-ray image acquisition system is provided with a shooting device; the image processing device is provided with an image enhancer connected with the shooting device and an image digitalization device connected with the image enhancer; the image digitalization device is connected with the image storage device; a USB (universal serial bus) port is formed in the image storage device; the X-ray image acquisition system, the image processing device and the image storage device are respectively controlled by a control switch. The data acquisition device is convenient for the construction site, data are real and reliable, and the structure of the pavement cannot be damaged; the data acquisition device is convenient to implement, high in practicability, good in use effect and convenient to popularize.