信号发生器

In this thesis,the method of the cause of makingthe digital ECG signal generator is specially introduced .

论文研究了以低功耗单片机MSP430F149为控制核心的通用型数字式心电信号发生器的研制方法。

So, it is vital to study and develop new chaotic signal generator and push Chaos theory to good use.

因此，研究并开发新的混沌信号发生器对混沌理论推向实用化至关重要。

Output current for pure sine wave, can be extended oscillator and signal generator of life itself.

输出电流为纯正弦波，可以延长振子及信号发生器本身的寿命。

A kind of digital synthetic reference sinusoidal generator having the function of synchronous with line voltage is presented by using digital method.

提出了一种采用数字合成的方法生成单相具有与电网电压同步的数字式基准正弦波信号发生器的方法。

This section through the sinusoidal signal generator QuartusII the design of some of the important features to make some notes.

本节通过正弦信号发生器的设计对QuartusII的一些重要功能作一些说明。

sound velocity ; temperature ; stationary wave method ; ultrasonic wave

虽然用超声波测声速具有以上优势，但实验数据的精确度在一定程度上受到超声波信号发生器的稳定性、压电陶瓷换能器的效率、周围环境温度等因素的影响。

A signal synchronizer was designed and made specifically for sport scientific researches.

同步信号发生器是为体育科研专门设计和制作的。

One, serve as a signal generator with computer, the software of COOLEDIT of sine sound wave that produces a standard is software of the acoustic frequency processing with a kind of powerful function and editor, it can be generated, broadcast the voice that with transcribe we need, the weaveform that can show phonate news undertakes study for us, be acoustics research and acoustic frequency processing

一、用电脑作为信号发生器，产生标准的正弦声波COOLEDIT 软件是一种功能强大的声频处理和编辑软件，它可以生成、播放和录制我们所需要的声音，并可以显示出声音的波形供我们进行探究，是声学探究和声频处理的得

Shootable crows.- You can place markers on the pda map with GPS.

你可以用GPS信号发生器在PDA上标出地点。

Function generator plays more and more important role in automatic measure.

信号发生器在自动化测量等领域发挥着越来越重要的作用。

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。