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为了快速有效地探测爆炸物的结合量,设计一款利用痕量爆炸物传感器检测爆炸物的系统.分子印迹压电传感器输出被测物引起的频率偏移,MSP430单片机对检测传感器和参考传感器的频率差信号进行捕获和计算,并将测量结果传到上位机.爆炸物被检测到的含量与频率差之间的关系由上位机的回归预测算法确定,将预测结果返回给单片机,确定有结合量后可进行显示和报警.实验结果表明:单片机测频误差分布在0.05%以内;上位机的回归预测分析均方误差为0.000268183,相关系数为99.7641%. 相似文献
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This paper presents a microelectronic system which is capable of making a signal record and functional electric stimulation of an injured spinal cord. As a requirement of implantable engineering for the regeneration microelectronic system, the system is of low noise, low power, small size and high performance. A front-end circuit and two high performance OPAs (operational amplifiers) have been designed for the system with different functions, and the two OPAs are a low-noise low-power two-stage OPA and a constant-gm RTR input and output OPA. The system has been realized in CSMC 0.5-μm CMOS technology. The test results show that the system satisfies the demands of neuron signal regeneration. 相似文献
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