20.500.12556/RUL-182288 Statistical evaluation of robot trajectories in automated dimensional measurements The influence of a robot’s manipulation can be observed in a robotic measurement system. Different robot end-effector trajectories yield different robot end-effector accuracy and repeatability errors. Trajectory parameters, robot motion type, velocity, and length of motion were identified as influential sources. A robot arm was used to insert measuring objects into the measurement device for dimensional measurements. In the first part, the measurement datasets for linear and joint robot motions were compared for three different velocities and four motion lengths. The influence of the number of active joints in the robot’s motion was compared for two velocities and four magnitudes of joint rotation. Dimensional measurement variability was analysed using measurement system analysis (MSA), and the statistical influence of trajectory parameters was further addressed by analysis of variance (ANOVA). All identified trajectory parameters have a statistically significant impact on measurement variability, reflecting the robot end-effector’s accuracy and repeatability errors. Linear motion provides higher measurement variability up to 20%, a velocity increase that is typically up to 25–35% and motion length that is typically up to 15–35%. robot dimensional measurements trajectory velocity distance number of active joints robot dimenzijske meritve trajektorija hitrost razdalja število aktivnih sklepov true false true Angleški jezik Slovenski jezik Članek v reviji 2026-05-06 12:06:21 2026-05-06 12:06:25 2026-05-07 04:53:18 0000-00-00 00:00:00 2026 0 0 20 str. issue 5, art. 261 Vol. 14 May 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 007.52 2227-7080 10.3390/technologies14050261 277208067 technologies-14-00261_(1).pdf technologies-14-00261_(1).pdf 1 46668AAC300A0286C10E2917152E3DB8 f2eabf8072f1f0164ade2b7d14d0fa95adbca83114e03c8d0bf81c860a9d9e9a b2edcd8f-4935-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=233420 https://www.mdpi.com/2227-7080/14/5/261 1 f531d50c-4932-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=233416 Fakulteta za elektrotehniko 0 0 0