Abstract:

A design of ground test equipment for ratioing calibrator on board based on DSP chip was proposed and implemented. DSP was utilized as the core processor with upper computer communication module, lower computer RS-422 serial communication module, three wires serial communication module, analog signal acquisition module and OC drive modular. The equipment has been succeed in testing mulit-interface on board calibrator, and the function, performance and stability were validated.

Key words: ground test equipment, calibrator on-board, DSP