Laser Doppler Anemometer (LDA) is used as a reference standard for measuring the velocity of liquids. To ensure measurement traceability, the system must be properly calibrated. Many international metrology institutes use a rotating disk for calibrating LDA measurement system. In this study, we presented the basic working principles of existing standard systems and highlighted key influential variables on their measurement uncertainty through a review of the literature. Based on this, we established criteria for designing our own implementation of a primary standard for calibrating LDA instruments. We presented the results of key influential variables on measuremnt uncertainty. For each case, we used comparative analysis to indentify influential variables affecting the uncertainty of the disk's circumferential velocity and compared them. We provided guidelines for creating our own standard system with rotating disk.
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