GB/T 3720-1988
AbolishedOptical length measuring instruments--Basicparameters
光学长度计量仪器 基本参数
Application Summary AI generated
This standard specifies the basic parameters for optical length measuring instruments, such as magnification, scale interval, and measuring range. It is applied in the design, manufacturing, and quality verification of instruments like toolmakers' microscopes, measuring projectors, and autocollimators used in precision engineering and metrology laboratories. The standard ensures consistency and interchangeability of optical measurement devices across industrial inspection and calibration contexts.
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