In our interference length measuring system the minimum display value attainable is 0.1 μm, with a measuring length of less than 4.8 metres. The necessary correction for laser wavelength in our system is affected by interpolation of value (1) in asso
The article introduces the formula and the method which work out the practical number table as the revision of circumstance for the laser interferometric length measurement system, it is useful to improve the efficiency of the instrument.