推荐星级:
  • 1
  • 2
  • 3
  • 4
  • 5

基于FPGA的谐振悬臂梁传感器智能接口电路

更新时间:2020-08-05 05:05:44 大小:305K 上传用户:守着阳光1985查看TA发布的资源 标签:fpga传感器智能接口电路 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

资料介绍

设计了基于FPGA的谐振式微悬臂梁传感器接口电路,将接口电路与谐振式微悬臂梁传感器组成闭环自激振荡系统。为满足接口电路智能化与输出频率稳定性的要求,设计了带有自动扫频功能的锁相环,以此锁相环为核心并结合外围放大、滤波、移相、整形电路构成的接口电路系统,能够自动扫频寻找谐振点并锁定,扫频精度为0.012 Hz左右,谐振频率的波动范围可达0.01 Hz左右,且锁定范围极广。分别测试了谐振点在100 kHz与500 kHz附近的两组传感器,该系统均能很好地自动扫频寻找谐振点并锁定。

An FPGA-based interface circuit for resonant micro-cantilever sensors was resonant micro-cantilever sensor and the interface circuit were combined together to form a close-looped self-exciting resonance meet the requirements of both intelligence and good frequency stability of the system,a phase-locked loop(PLL) with automatic frequency scanning function was interface circuit,which is composed of PLL,amplifiers,filters,phase shifter and waveform shapers,can scanning search the resonant frequency automatically and lock it frequency scanning precision of the system is 0.012 fluctuation range of the resonant frequency is measured as about 0.01 Hz,wh...

部分文件列表

文件名 大小
基于FPGA的谐振悬臂梁传感器智能接口电路.pdf 305K

【关注B站账户领20积分】

全部评论(0)

暂无评论

上传资源 上传优质资源有赏金

  • 打赏
  • 30日榜单

推荐下载