A New Starting Curve Based on Acceleration and Deceleration Theory of Stepping Motor

Abstract

Abstract This paper makes a comprehensive analysis of various research methods to improve the sampling accuracy of automatic biochemical analyzer, and confirms that the starting mode of plunger pump is taken as the research object to improve the sampling accuracy. A new type of S-curve is designed based on the S-curve proposed by acceleration and deceleration theory. This new type of curve ensures high precision sample addition by accurately controlling the plunger pump to run the same distance in each step of the stepping motor. In order to confirm the validity of the new S-curve, an experimental platform was established to compare the confirming that the optimized S-curve can obviously improve the stability of the sample addition result.