1) frequency dynamic tracking
频率动态跟踪
1.
AC synchronous sampling technique based on software frequency dynamic tracking;
基于软件频率动态跟踪的交流同步采样技术
2.
frequency dynamic tracking and same interval synchronization sampling.
该方法将采样过程分为频率动态跟踪和等间隔同步采样两部分,分别由优先级不同的多个任务完成信号采样和数据处理,各任务由抢占式的μC/OS-Ⅱ统一调度管理,较好地解决了精确性和实时性的矛盾。
2) Automatic frequency tracking
自动频率跟踪
1.
Automatic frequency tracking based on self-optimizing fuzzy-control approach;
基于自寻最优模糊控制的自动频率跟踪
2.
To improve the speed and accuracy of automatic frequency tracking on thermosonic wire bonding,the design scheme based on FPGA was proposed.
为进一步提高热超声引线键合超声电源的自动频率跟踪速度及精度,提出了基于现场可编程门阵列(FPGA)的超声电源设计方案。
4) frequency tracking
频率跟踪
1.
A sampling measurement algorithm without frequency tracking based on electronic instrument transformer;
基于电子式互感器的无频率跟踪采样测量算法
2.
Current feedback frequency tracking control with matching of piezoelectric;
压电超声换能器电端匹配下的电流反馈式频率跟踪
3.
Research on the Frequency Tracking System of HF-Inverter Power Controlled by PI-DPLL;
基于PI-DPLL的高频逆变电源频率跟踪系统的研究
5) frequency tracing
频率跟踪
1.
A new method based on correlation theory and frequency tracing algorithm is presented .
针对应用虚拟仪器技术测量旋转动力机械扭矩的原理与算法进行了研究,提出一种频率跟踪基于相位差测量扭矩新方法。
2.
Through DC input voltage regulation and circuit resonant frequency tracing,approximate linear load power regulation can be realized by the power supply.
利用电路谐振产生高频高幅值的正弦波电压的介质阻挡放电电源,通过调整电源的逆变电路的直流输入电压,同时逆变电路开关频率跟踪电路谐振频率,可以实现介质阻挡放电负载功率的近似线性调整。
3.
because of bridge rectifier adopting APFC technology and inverter adopting the frequency tracing technoiogy of no phase difference, which have very important significance on effective running of power network? frequency conversion power supply and loading.
其整流器采用APFC技术 ,逆变器采用无相差频率跟踪技术 ,使输入和输出的功率因数都得以提高 ,这对电网、变频电源和负载的有效运行具有重要意
6) frequency-tracking
频率跟踪
1.
Experimental results show that the energy transmission system is capable of automatic frequency-tracking and transmission power-adjusting and has stable received energy.
报道了一种消化道微创诊疗微系统的无线体外供能装置,它主要由利用锁相环的自动频率跟踪电路和采用移相的调功电路构成。
2.
In consideration of the process of card wire heating operation,a strategy of frequency-tracking with integral action separation and DPLL(digital phase-locked loop) is employed to work out a high frequency induction heating power with 100 kHz/5 kW for on-line card wire annealing.
根据梳理机用齿条热处理工艺的要求,采用积分分离法与DPLL(数字锁相环)相结合的频率跟踪策略,设计了一台100 kHz/5 kW的高频感应加热电源,对齿条进行在线退火处理。
3.
The paper studies digital control scheme of resonance inverter frequency-tracking based on all digital phase-locked loop.
本文主要研究了基于全数字锁相环的谐振型逆变器频率跟踪的数字化控制方案。
补充资料：动态频率扫描
动态频率扫描
超声学检查技术之一。通过多频探头和可变带通滤波器的结合，不用更换探头，就能自动转换工作频率，在近场使用高频率，在远场使用低频率的技术。具有高分辨力和高灵敏度这两个互相排斥的特点，可把各个单频探头的图像质量最佳之处取出并组合一体。采用超低杂波、宽带放大器及超声波发射、接收效率均佳的多层探头，从而做到分辨力高，穿透性强，图像清晰，杂波少。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条