Optimization Design of Pipetting Accuracy for Nucleic Acid Extraction Device
In order to improve the pipetting accuracy and stability of the nucleic acid extraction device ,an S-type accelera-tion and deceleration curve algorithm based on sinusoidal function was proposed by taking the pipetting module based on the principle of air displacement and piston drive as the research object ,and it was compared with the uniform acceleration and deceleration and parabolic acceleration and deceleration curve algorithms and verified by experiments. The results showed that the nucleic acid extraction device based on the S-type acceleration and deceleration curve algorithm based on the sinu-soidal function achieved a significant improvement in the pipetting accuracy under different working conditions of 10 μL , 20 μL ,50 μL ,100 μL and 200 μL ,and the CV value of the experimental data met the JJG 646-2006 pipette verification regulations.