A novel method of direct digital synthesizing frequency sweep signal is presented.
介绍了利用直接数字合成技术产生频率扫描信号的新方法。
A typical frequency sweep rheogram of nonionic surfactant liquid crystal can be observed at a moderate temperature range.
中等温度范围内表现出典型的非离子表面活性剂层状液晶的频率扫描曲线形式。
A description is given, in particular, of the advantages of the rapid frequency sweep technique for the research on the dynamic characteristics of a linear system.
特别对用快速正弦扫频试验方法研究线性系统动态特性的优点做了必要的说明。
The epoxidized natural rubber was tested by temperature sweep, frequency sweep and strain sweep by using rubber process analyzer, and the results were compared with that of natural rubber.
用橡胶加工分析仪对环氧化天然橡胶进行了温度扫描、频率扫描和应变扫描，并和天然橡胶的响应曲线进行了对比。
Image processing method is used to carry out frequency sweep and voltage sweep measurement. The in-plane motion characteristic of MEMS is obtained and the testing results are analyzed and discussed.
利用图像处理方法对MEMS谐振器做扫频和扫压测量，获得了MEMS器件的平面微运动特性，并对测量结果进行了分析和讨论。
After the sequence passes through digital-to-analog converter and low pass filter, the desired frequency sweep signal is synthesized by the method of direct digital synthesis.
该序列通过数-模转换器和低通滤波器后，产生出频率扫描信号。
After the sequence passes through digital-to-analog converter and low pass filter, the desired frequency sweep signal is synthesized by the method of direct digital synthesis.
该序列通过数-模转换器和低通滤波器后，产生出频率扫描信号。
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