Digital frequency synthesis is implemented by DDS+PLL in this DS/FH synthesizer,which has advantages of flexible configuration,high frequency resolution,quick switching speed,wide range of frequency output.
该信号源采用DDS+PLL数字频率合成方法,具有配置灵活、频率分辨率高、频率切换速度快、输出频率范围广的优势。
参考来源 - 基于FPGA的某电台检测仪的扩跳频信号源·2,447,543篇论文数据,部分数据来源于NoteExpress
This system cost lower, delay times shorter, switching speed faster, output volt-age accuracy higher.
系统成本低,延时短,开关速度快,输出电压精度高。
The switching speed of the upper and lower valves can be adjusted by regulating the spring force of them.
调整阀门的开关速度主要调整阀门的弹簧压力。弹簧压力增加,则阀门的开关速度加快。
Filling deviation depends on filling amount, filling rate and the switching speed of the upper and lower valves.
灌装误差的产生,主要由灌装量、灌装速度、上下阀门的开关速度来确定。
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