| 锁相放大器在温度传感器校准系统中的应用 |
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| 引用本文： | 胡晋军,郝晓剑,周汉昌.锁相放大器在温度传感器校准系统中的应用[J].弹箭与制导学报,2009,29(1). |
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| 作者姓名： | 胡晋军 郝晓剑 周汉昌 |
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| 作者单位： | 中北大学电子测试技术国防科技重点实验室,太原,030051 |
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| 基金项目： | 电子测试技术国防科技重点实验室基金;;国防“十一五”基础科研基金资助 |
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| 摘 要： | 介绍了锁相放大器的原理和SR830锁相放大器在温度传感器校准系统中的应用。由于瞬态温度测量存在动态误差,需对温度传感器进行校准。温度传感器校准系统加入锁相放大器后,可检测出低温的微弱信号,提高校准系统的信噪比,拓宽校准系统的温度下限。
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| 关 键 词： | 锁相放大器 温度传感器 校准系统 瞬态温度 动态误差 |
Application of Lock-in Amplifier in Calibration System of Temperature Sensor |
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| HU Jinjun,HAO Xiaojian,ZHOU Hanchang.Application of Lock-in Amplifier in Calibration System of Temperature Sensor[J].Journal of Projectiles Rockets Missiles and Guidance,2009,29(1). |
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| Authors: | HU Jinjun HAO Xiaojian ZHOU Hanchang |
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| Affiliation: | National Key Laboratory for Electronic Measurement Technology;North University of China;Taiyuan 030051;China |
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| Abstract: | This paper introduced the principle of lock-in amplifier,and the application of SR830 lock-in amplifier in calibration system of temperature sensor.The temperature sensor needed to calibrate,because of dynamic errors in temperature measurement.After used the lock-in amplifier,the system can detect the weak signals at low temperature.The signal-noise ratio of the calibration system is improved,and the lower temperature limit of calibration system is widened. |
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| Keywords: | lock-in amplifier temperature sensor calibration system transient temperature dynamic error |
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