| 摘要 |
PURPOSE:To measure sectional size without damaging the surface of a linear body in irregular torsional motion nor deforming the body by irradiating the body with laser light beams which oscillates crossing the linear body in >=3 directions. CONSTITUTION:Wire diameter measurement systems S1-S3 which utilize three laser light beams are arranged at equal intervals of 120 deg. on a circumference C which includes the linear body W having rectangular section in the center. Those measurement systems S1-S2 each have a laser light source 1, reflection mirror 3, rotating mirror 5 which oscillates a laser beam across the linear body W at a frequency of hundreds of Hz, and lens 7 which shapes this laser beam into a parallel beam. This constitution measures the sectional size without deforming the body. |
