解説
正確なアライメントの実現と維持のために：測量から，アライメントを崩す要因探索の変動・振動測定まで
2023 年 20 巻 1 号 p. 20-34
詳細
2023 年 20 巻 1 号 p. 20-34
The two-dimensional program for the network survey using Schreiber method was improved from BASIC language to Excel VBA. This program can draw the relative error ellipses. The survey simulation is also useful for estimating the environmental conditions including laser tracker performance. The drill with a three-step countersink is convenient for making floor survey adapters. A data acquisition system such as Keithley 2701 and Pt100 sensors were used for temperature measurements with a resolution of 0.001 degrees. Spectron’s electrolyte tilt sensors are small and capable of precise measurements and measuring instruments were made of these sensors with amplifiers. They are convenient because the analog output from various sensors can be measured simultaneously with a scanner-equipped DMM. Inexpensive dynamic coil geophones such as GS-11D are sufficient for measuring mechanical vibrations, rather than expensive servo-type one.
