| 红外报警系统前置放大器噪声的抑制 |
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| 引用本文： | 邹其洪,刘原,陈文光,赵艳辉. 红外报警系统前置放大器噪声的抑制[J]. 南华大学学报(自然科学版), 2000, 0(1) |
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| 作者姓名： | 邹其洪 刘原 陈文光 赵艳辉 |
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| 作者单位： | 中南工学院电气工程系!湖南衡阳421001 |
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| 摘 要： | 本文介绍了热释电探测器前置放大器的噪声、阻抗匹配和带宽问题 ,指出在保证前置放大器具有较高灵敏度的情况下 ,使输出噪声电平达到系统所限制的最小范围内的可行措施
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| 关 键 词： | 热释电探测器 灵敏度 低频噪声 |
Restraint of Noise Emitted by A Pre amplifier in the lnfrared Alarm System |
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| ZOU Qi hong,LIU Yuan,CHEN Wen guang,ZHAO Yan hui. Restraint of Noise Emitted by A Pre amplifier in the lnfrared Alarm System[J]. Journal of Nanhua University(Science and Technology), 2000, 0(1) |
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| Authors: | ZOU Qi hong LIU Yuan CHEN Wen guang ZHAO Yan hui |
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| Abstract: | This paper studies the problems of the pre amplifier noise,impedance matching and the width of frequency band in the pyroelectric detector,and suggests feasible measures to make output noise level reach the minimal range limited by this system under the circumstance that ensures a higher sensity of a pre amplifier. |
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| Keywords: | pyroelectric detector sensitivity low frequency noise |
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