本文利用频率跟踪和移相控制技术，使电源输出频率跟踪负载谐振频率变化，以保证最佳加热效率。
It could ensure the best efficiency by making the output frequency to trace the resonance frequency with the frequency tracing technique and phase-shifted control.
系统的分析了频率跟踪移相PWM控制全桥供电的串联谐振负载式DBD型臭氧发生器电源系统的工作过程。
The working processes of the frequency-tracking phase-shift PWM controlled full bridge power supply load series resonant type DBD ozone generation power system are analyzed.
结果得出了纵扭复合型超声马达谐振频率与负载的变化关系。
Results The change relations between resonance frequencies and load of longitudinal-torsional ultrasonic motor were got.
由于超声波电机的温升、负载变化及周围环境变化等原因，使电机的谐振频率发生漂移，这将影响超声波电机运行的稳定性。
Because of the temperature rising of ultrasonic motors, load changes, and vicinal surrounding changes and so on, the resonant frequency will shift, leading to working stability drop.
液相环境下振荡的压电石英晶体传感器的谐振频率变化主要受液体性质和表面质量负载的影响。
The resonance frequency shifts of piezoelectric quartz crystal sensors in contact with the liquid are influenced mainly by liquid properties and mass loading on the quartz crystal surface.
改进的异或门中，利用LC谐振回路作为异或门的负载，提取出希望得到的频率分量。
Using LC tank circuit as the load of modified XOR, the frequency component desired can be extracted out.
超声珩磨装置在工作状态时，珩磨负载对超声珩磨振动系统谐振频率有一定的影响。
Honing load has influence on the resonance frequency of ultrasonic honing vibration system when ultrasonic honing device is working.
它会影响到晶振的谐振频率和输出幅度，一般订购晶振时候供货方会问你负载电容是多少。
It will affect the crystals resonant frequency and output amplitude, the general ordered crystal when the supplier will ask you how much the load capacitance.
在这样的发展趋势下，基于软开关的负载谐振开关电源功率和频率的要求也逐步提高。
In such a trend, the power and frequency of load resonant switching power supply based on soft switching requirements also gradually increase.
为使系统的功率因数较高，采用电压源型负载串联谐振中频逆变器和频率跟踪技术。
In order to improve the power parameter further, the intermediate frequency inversion of an electric voltage power type series resonance and frequency trace technique are adopted.
分析了SAW谐振器表面力负载对谐振器谐振频率和机械损耗产生的影响。
The variation of the resonant frequency and the mechanical loss of SAW resonators are analyzed while there is force directly applied on the surface of an SAW resonator substrate.
频率跟踪方法能够随谐振网络阻抗及负载力的变化而迅速跟踪谐振频率，且跟踪过程平稳可靠。
The frequency tracking method could rapidly track resonant frequency with the changes of network impedance and load force, and the tracking process was smooth and reliable.
样机运行结果表明，控制系统能随外部干扰和负载变化自动跟踪谐振频率，并有可靠性好，电路简单，抗干扰能力强的特点。
The prototype operation indicate that control system can automatically adapts the drift of parameters with the new wethod. It has such character as high reliable, simple circuit and good anti-jamming.
样机运行结果表明，控制系统能随外部干扰和负载变化自动跟踪谐振频率，并有可靠性好，电路简单，抗干扰能力强的特点。
The prototype operation indicate that control system can automatically adapts the drift of parameters with the new wethod. It has such character as high reliable, simple circuit and good anti-jamming.
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