An object three-dimensional outline
measurement device and a measurement method are disclosed, the device is composed of a
laser diode, a lens, an aperture diaphragm, a two-dimensional Dammam
grating, a cylindrical mirror and an area array
CCD camera, a
transmission line and a computer, the connection relationship therebetween is as below: a beam emitted by the
laser diode passes through the lens, the aperture diaphragm, the two-dimensional Dammam
grating, and the cylindrical mirror sequentially to form one-dimensional projection array stripes, which illuminates the surface of an objective to be measured, the area array
CCD camera collects the
grating projection strips modulated by three-dimensional digital shape on the surface of the measured objective and outputs the strips to the computer via the
transmission line, the computer includes an image collecting interface, image collecting
software and three-dimensional measurement information
reconstruction algorithm software. The invention has, by utilizing the
Fourier transform three-dimensional outline measurement structure, the advantages of
high energy utilization rate, simple measurement structure, high
measurement precision, convenient computer reconstruction
information processing and great easiness for operation.