| 可控增益小信号测量仪系统设计 |
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| 引用本文： | 王峰,颜廷秦,丁金林.可控增益小信号测量仪系统设计[J].苏州市职业大学学报,2009,20(3):32-34. |
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| 作者姓名： | 王峰 颜廷秦 丁金林 |
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| 作者单位： | 苏州市职业大学,电子信息工程系,江苏,苏州,215104 |
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| 基金项目： | 苏州市职业大学科研基金资助项目 |
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| 摘 要： | 设计一种增益可控的小信号检测系统，以PGA202构成的自动增益控制电路为主，信号放大后由转换电路转换为交流平均值，然后由A／D转换器转换为数字量显示．试验结果表明，该系统测量数据准确，抗干扰能力强，非常适合于对小信号的测量．
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| 关 键 词： | PGA202 可控增益控制 峰值检测 |
Design of the Small Signal Measurement System Based on Automatic Programmable Gain |
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| WANG Feng,YAN Ting-qin,DING Jin-lin.Design of the Small Signal Measurement System Based on Automatic Programmable Gain[J].Journal of Suzhou Vocational University,2009,20(3):32-34. |
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| Authors: | WANG Feng YAN Ting-qin DING Jin-lin |
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| Institution: | (Department of Electronic Information Engineering, Suzhou Vocational University, Suzhou 215104, China) |
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| Abstract: | It designed a system of the small signal measurement system based on automatic programmable gain. This system was based on PGA202. The AC signal wave was converted into DC signal by average transition circuit after amplification. Finally the DC signal was converted into digital form by A/D convertor and displayed, Experiments prove that the system is accurate. The anti-interference performance of the system is good and can be applied to small signals＇ measurement extraordinarily. |
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| Keywords: | PGA202 |
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