Line Scale Calibration in Non-Ideal Measurement Situation

Abstract

The precision line scale calibration in dynamical mode of operation is considered. A new interferometer-controlled comparator with moving microscope has been developed and optimised in order to reduce both the measurement uncertainty and calibration process duration. Modal analysis performed and measurements conducted of the spatial vibrations of comparator structure revealed that dynamically-induced errors can noticeably contribute to the measurement uncertainty budget. They can be prominently reduced, in particular, by proper improvement and optimisation of the carriage structure and elimination of the dry friction in the carriage drive.

Research on the Dynamics of the Precision Angle Calibration System / Precizinės Kampo Kalibravimo Sistemos Dinamikos Tyrimai

“…Būtent šioje įrenginio dalyje yra svarbiausi tikslumą garantuojantys prietaisai -mikroskopas ir matavimo objekto staliukas. Bet kokie išoriniai ar vidiniai trikdžiai gali paveikti matavimo tikslumą (Kilikevičius et al 2013(Kilikevičius et al , 2009(Kilikevičius et al , 2010bVekteris, Kasparaitis 2012;Augustinavičius, Čereška 2010;Prielaidas, Lazdinas 2011;Kausinis et al 2009;Kasparaitis et al 2012). Kad būtų nustatyta detektavimo sistemoje kylančių trikdžių (priklausančių nuo vidinių ir išorinių žadinimų) įtaka, buvo atlikti tyrimai esant įvairiems sistemos darbo režimams, t. y. įjungtos arba išjungtos pneumatinės sistemos (oro guoliai).…”

Dynamic Research on Precision Angle Measurement Comparator

“…However, it is not always simple, because of the need of compromising solutions, which contain the combination of machine functionality, general stiffness and stiffness of constructive parts, dimensions, prices, etc. [1][2][3][4][5][6][7].…”

Research of Dynamics of the Precision Mechatronical Line Scale Gage Calibration System

“…Vibration measurements are widely applied in the evaluation or monitoring of measurement systems, the state of machinery and aggregates. Monitoring of measurement parameter and evaluation its change in time, as well as taking appropriate actions according to results, helps to evaluate and remove sources of errors [1][2][3][4][5]. The vibration measurement system performs these functions.…”