With using absolute optical interferometer for measuring length of blockgauge, 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
Operate length gauge, Use gaugeblock correct, operate comparing measurement.
正确使用量块，在测长仪上进行比对测量。
3
Through measuring cylindrical section and surface of gaugeblock, this system is viable to measure free-form surface and high-reflective metallic surface.