摘要
矿用钻孔伽马测井仪中伽马射线探测器输出的信号形式为电流型,其就幅度而言较为微弱,不能直接输入给微控制器进行脉冲计数与统计分析。利用高性能、低噪声、小体积单运算放大器CA3140A设计信号调理电路,对伽马射线探测器输出的微弱信号进行信号变换,并依据实际应用需求实现了相应的硬件电路。实验结果表明,设计的电路性能稳定,能有效拾取并调理得到标准的脉冲信号,符合预期设计要求。
The current type signal of gamma detector in gamma logging tool is generally weak,which can not be directly input into microcontroller for pulse counting and statistical analysis. The signal conditioning circuit is designed by using high performance,low noise,small volume single operational amplifier CA3140A,which processes the weak signal from gamma detector,and realizes the corresponding hardware circuit according to the actual application requirements.The experimental results show that the circuit design performance is stable,and can effectively pick up and process the effective pulse signal,which meets the expected design requirements.
作者
田小超
TIAN Xiaochao(Xi’an Research Institute Co.,Ltd.of China Coal Technology&Engineering Group Corp,Xi’an 710077,China)
出处
《电子设计工程》
2022年第6期147-150,共4页
Electronic Design Engineering
基金
中煤科工集团西安研究院有限公司科技创新基金面上项目(2019XAYMS06)。
