ALMA Front End Amplitude Calibration Device Design and Measured Performances

摘要

This paper summarizes the main aspects of the design and qualification test results of the ALMA Amplitude Calibration Device Robotic Arm (ACD). The design aspects of the ACD, including a detailed description of the components selected to achieve the expected performances are presented in the first part of the paper. Also the system performances results measured in the first prototype units are summarized at the last part of the paper.