16通道剂量率在线检测系统的软硬件设计

摘要

介绍了一种16通道剂量率在线检测系统的软硬件设计.探测器输出的数据经过前端的放大和模数转换后,经FPGA传至微处理器中,进行低频滤波、转换计算、温度补偿、台阶扣除等处理,有效地修正了温度波动带来的暗电流变化,得到了足够精确的瞬时剂量率值.%The software and hardware design of a 16 channel online dose rate monitoring system is presented.After being amplified and A/D converted, the output signal of the sensors was sent to a microprocessor through an FPGA, where the low -frequency filter, calculation, temperature compensation and pedestal deduction were accomplished. Such steps corrected the variation of dark current dependent on temperature fluctuations in a effective way, and finally the instantaneous dose rate results with enough precise were obtained.