sampling Moire camera and the laser displacement meters when the camera angle is 0 , horizontal direction 60 , and vertical direction 30 and horizontal direction 30 , respectively. Figure 22.10 shows results of real-time displacement measured by the sampling Moire camera and the laser displacement meters when the camera angle is 0 , horizontal direction 60 , and vertical direction 30 and horizontal direction 30 , respectively. Figure 22.11 shows results of error of the difference between the sampling Moire camera and the laser displacement meters when the camera angle is 0 , horizontal direction 60 , and vertical direction 30 and horizontal direction 30 , respectively. The difference of displacement measured by the sampling Moire camera and the difference of displacement measured by the laser displacement meters is 0.05 mm or less when the camera angle is 0 , horizontal direction 60 . The difference of displacement measured by the sampling Moire camera and the difference of displacement measured by the laser Fig. 22.5 Camera angles of sampling Moire camera. (a) 0 (b) Horizontal direction 60 (c) Vertical direction 30 and horizontal direction 30 Fig. 22.6 Illustration of camera angles of sampling Moire camera. (a) 0 and horizontal direction 60 (b) Vertical direction 30 and horizontal direction 30 Fig. 22.7 Images captured images by sampling Moire camera. (a) 0 , (b) Horizontal direction 60 , (c) Vertical direction 30 and horizontal direction 30 22 Deformation Distribution Measurement from Oblique Direction Using Sampling Moire Method 201
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