Patent ID: 11879875
Assignee: WATERS TECHNOLOGIES CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. The liquid chromatography sample manager of claim 9, further comprising a control system, the control system configured to control the rotational movement of each of the sample platter and the needle arm, the control system configured to control a calibration process that includes the steps of:
moving the sample platter so that a first opening in the sample platter aligns with the sample needle on the needle arm;
moving the needle arm above the aligned first opening and recording a first encoder position of each of the sample platter and the needle arm;
moving the sample platter so that a second opening in the sample platter aligns with the sample needle on the needle arm;
moving the needle arm above the aligned second opening and recording a second encoder position of each of the sample platter and the needle arm; and
with the known first and second encoder positions, back-calculating the geometric parameters of the sample platter and the needle arm to calibrate the movement of the sample platter and the needle arm.