Straight line displacement distance measuring apparatus based on linear array CCD sequence laser image match correlation

The utility model discloses a correlative straight-line displacement range finder for matching based on a line array CCD sequence laser image. The correlative straight-line displacement range finder solves the problems that a numerical control machine adopting a closed-cycle control system at present has high measurement device cost, complex installation, inconvenient use, etc., and has the advantages of simple structure, convenient use, low cost, high measuring accuracy, etc. The correlative straight-line displacement range finder has the structure that: the straight-line displacement range finder is composed of an imaging device, a digital image signal processing device and a displacement data output interface device, wherein, the imaging device is composed of a light source and correlative light path assemblies, and a camera head, the output end of the camera head is connected with the input end of the digital image signal processing device, and the output end of the digital image signal processing device is connected with the displacement data output interface device.