高精度精密相位检测仪的乘法电路与放大电路设计  

Multiplication circuit of high precision phase detector and amplifier circuit design

作　　者：张凯[1] 

机构地区：[1]陕西工业职业技术学院,712000

出　　处：《电子测试》2013年第3期28-29,共2页Electronic Test

摘　　要：正弦信号的相位检测是许多测量工程的一项基本而重要的任务。本设计给出了模拟式相位测量的基本原理与实现方案。该系统由乘法电路、高精度放大电路两部分构成。讨论了利用模拟相乘法进行相位检测的原理,对实际信号处理流程和测量误差进行分析,并进行了仿真研究,使得测量分辨率精确到0.5o,结果表明:模拟相乘法从实时性、检测精度等方面都优于其他常规方法。该方法已成功应用于多种电子设备的相位检测中。Sine signal phase detection is a lot of surveying engineering is a basic and important task. This design gives the analog phase measuring principleand implementation scheme. The system consists of a multiplication circuit, high precision amplifier circuit two parts of constitutions. Discusses the use of analog multiplication phase detection principle, practical signal processingprocedure and measurement error were analyzed, and simulation, makes the measurement resolution is accurate to 0.5o, results show that： analog multiplication from real-time, detection precision, is better than other conventional methods. The method has been successfully applied to a variety of electronic equipment of phase detection.

关 键 词：检测 相差 相位 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置] TN702[自动化与计算机技术—控制科学与工程]