A multi-channel telemetry collector is designed to meet telemetering data acquisition of a mock bomb.Use FPGA as logic controller

propose an acquisition circuit based on analog switches cascade mode

it achieves data acquisition of 40 channels sensor signals and the collected data is compiled in form of frame and stored in memory. Analyze oscillation phenomenon appeared in acquisition circuit and propose solution

give method for multi-channel data frame-editing and acquisition and control timing. Experimental results show that property of the collector is reliable

acquisition precision is high and has good universality.