Design of high performance metal detector based on phase discrimination principle;
基于鉴相原理的高性能金属探测仪的设计
Software realization of phase discrimination and pulse countingof manual pulse generator;
手摇脉冲发生器鉴相及脉冲计数的软件实现
Application of Quadruple Frequency Phase Discrimination and Counting Circuit in Motion Controller;
基于CPLD的四倍频鉴相计数电路在运动控制器中的应用
A circuit for frequency multiplication and phase demodulation realized by high-density in system programmable logic device;
用高密度在系统可编程逻辑器件实现倍频鉴相输出电路
Based on the phase demodulation theory, the function of opti.
根据鉴相的理论基础 ,该文阐述了光纤传感器在动态定距测量系统中的功能 ;针对特定的环境 ,对鉴相系统作了重要改进 ;分析了改进后系统的测距灵敏度、精度 ,讨论了改进后系统所具有的优点 ,并对系统的应用和发展前景作出评估。
EBPSK(extended binary phase shift keying) is a method for phase modulation with efficient bandwidth,and its demodulation with a phase detector requires a quite narrow bandwidth of the PLL and a high precision tracking of carder phase.
EBPSK 是一种高带宽效率的相位调制方法,对其进行鉴相解调要求锁相环路的带宽极窄并高精度跟踪载波相位,使得锁相环在一定频差下捕捉时间和捕捉带的矛盾更加突出。
The phase detecting and counting of the sensor signal has achieved in virtue of the complex programmable logic device.
鉴于数字方法实现的测量方案性价比更加优越,从而构建了基于CPLD的电容式角度传感器测量电路,借助于复杂可编程逻辑器件完成传感器信号的鉴相、计数等处理。
A new phase detecting method based on CPLD and SCM for measuring angular shift of resolver is introduced.
介绍一种基于CPLD和单片机的旋转变压器新型鉴相式角位移测量方法和鉴相电路的设计。
In this paper,an encoder interface was designed,in which phase detection,enhancement of resolution and counting of encoder pulses were all implemented with simple hardware,and potential data error due to propagation time delay of the counter was removed.
设计了一种简单且高精度的接口电路,实现了硬件鉴相、倍频(提高精度)和计数,可与微机或DSP并行通讯,并消除了硬件延时可能引起的错误。
The CPLD part realized most logic circuits,for example: division of frequency,phase detection,gate control,synchronization,counting,data latch and MUX.
CPLD部分进行数据采集,完成分频、鉴相、门控、同步、计数、锁存、数据选择等逻辑功能;单片机部分对数据进行处理,完成数据的读取、运算、数据类型转化、循环扫描显示控制等功能,并将待测信号的相位差显示在八段数码管上。
the light plaus amplituide of base wave method, and the phase detection method.
本文提出并研制成补偿式光纤F-P干涉仪信号处理系统,提出了用来测量微小位移信号的三种方法及电路,即透射峰时间间隔测量法、光脉冲基波幅度测量法(精密整流法)、鉴相法。