With using absolute optical interferometer for measuring length of block gauge, it is necessary to solve the problem of phase jump for reflecting of light on its surface.
在用绝对光波干涉法测量量块长度时，必须解决光在量块表面反射时的位相跃变问题。
2
Adopting laser interferometer as measuring datum, length deflection of gauge blocks are measured in different gestures by developing an adjustable platform.