信号发生器

AD9851 to do a baseline audio frequency signal generator can be accurate to 0.01%.

一个以AD9851做频率基准音频信号发生器，可以精确到0.01%。

AD9851 to do a baseline audio frequency signal generator can be accu...

一个以AD9851做频率基准音频信号发生器，可以精确到0.01%。

The parasitic coupling between instruments and the ground as well as the disturbance from the electromagnetic field bring the difficulty in balance of the bridge.

由于作为电桥供电电源的数字信号发生器和作为指零仪的数字锁相放大器两者的对地寄生耦合以及环境电磁场等影响，导致宽频精密双臂交流电阻电桥的平衡很难调节。

It is of great value in helping designing a digital signal generator.

对数字式信号发生器的设计有一定的帮助。

An equidistant signal generator with spatial lagging property was discussed in this paper. And some practical circuits design were also proposed.

讨论了一种具有空间迟滞特性的等间距信号发生器电路的原理，并提出几种具体的设计方案。

Along with the development of computer simulation technology in circuit design is playing an increasingly bigger role The book had a negative feedback amplifier design using Multisim and sequence signal generator.

随着时代的发展，计算机仿真技术在电路设计中发挥着越来越大的作用，本书利用multisim设计了负反馈放大电路和序列信号发生器。

The producer that application LabIEW has carried on fictitiously the signal and fictitious oscilloscope design ,Moreoer deepen to comprehend the negatie feedback toto the action that the improement amplifier performance respect is taked by means of the test ,Research tension series negatie feedback along with the negatie feedback electric circuit performance index quiz means .

运用LabIEW进行了虚拟信号发生器和虚拟示波器的设计，并且通过实验加深理解负反馈对改善放大器性能方面所起的作用，研究电压串联负反馈以及负反馈电路性能指标的测试方法。

LabVIEW application environment is adopted for implementation of local instrument control. Programmable instruments such as function generator, multi-meters, and oscilloscopes have been linked to the computer through general purpose interface bus.

采用LabVIEW应用程序开发环境对本地仪器进行控制，并通过GPIB接口将可程控仪器，例如：函数信号发生器、数字万用表和示波器等设备连接到计算机上。

Finally designs the result to be able to satisfy the function signal generating device initial design request .

最终设计结果能够满足函数信号发生器最初的设计要求。

The function signal generating device has the very widespread use in the electric circuit experiment and the equipment examination.

函数信号发生器在电路实验和设备检测中具有十分广泛的用途。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。