【D17】Long Scales Calibration System Calibrated Device (1) Standard Tape (2) Invar Bar Code Staff Range (1) 0.001 m to 10 m (2) 0.1 m to 3 m Uncertainty (1) [16.92 + (2.9L)2]1/2 μm (2) [11.22 + (2.6L)2]1/2 μm L in m Tags: 長度標準