Issue 51

K. Li et alii, Frattura ed Integrità Strutturale, 51 (2020) 386-397; DOI: 10.3221/IGF-ESIS.51.28 397 t (s) Movement time of the sensor v (m/s) Speed of sensor movement α Angle between the laser emitted by the transmitting end and X A S (x a ,x b ,x c ) Coordinate of the intersection with the object θ Angle between the emitted light and the reflected light P 2 P 1 Plane distance D Height difference M4 Screw type 1200 rpm Speed of stepper motor C7&G1610 Type of ball screw Gocator-2080 Model of laser sensor 40X 40 times magnification