基于光敏电阻的简易照度计的设计与实现
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1.太原理工大学电气与动力工程学院 太原 030024; 2. 太原理工大学计算机科学与技术学院 太原 030024

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TP212.9

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Design and realization of simple illumination meter based on photosensitive resistance
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1.College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China; 2. College of Computer Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China

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    摘要:

    在某智能化家居、车间项目开发过程中,不少情况下需要对光照强度进行检测,而市售的照度计或光照传感模块成本及体积在许多场合下均难以适用。设计采用低廉的光敏电阻,由两只紧密结合的光敏电阻同点取光,输出的光照信号经仪表放大器AD623放大后进行采集,如此获得的光照强度再与照度计显示的值进行误差比对。实验证明,设计的简易照度计具有较好的系统线性度和准确度,做到了低成本、小体积,大大减小了电路构成的复杂度。

    Abstract:

    In the development process of intelligent household and workshop project, light intensity need to be detected in many cases. Considering the factors of cost and volume, both illuminometers and the light sensor modules sold on the market can hardly be applied to many occasions. In this paper two cheap photosensitive resistances are used for collecting light source at the same point, and the output after amplification of AD623 is acquired by MCU. By comparing measured values with the actual, the system has a good linearity and accuracy, and can achieve low cost and little volume. Moreover, the complexity of the circuit structure is reduced greatly through adopting a reasonable circuit design.

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翁健衎,刘卫玲,常晓明.基于光敏电阻的简易照度计的设计与实现[J].电子测量技术,2017,40(11):217-220

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  • 在线发布日期: 2018-01-02
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