信号发生器

This article describes the frequency and magnitude of the control of the generators.

本文介绍的是一种频率和幅度可以控制的信号发生器。

Modern cylinder pressure acquisition system is deeply affected by the advanced computer hardware technology. A/D card with the capabilities of high resolution, high sampling rate, non discrepancy and setting sampling rate at will is combined with a lot of excellent measuring equipment such as crank shaft angle encoder, charge amplifier, industrial control computer, etc.

高速发展的计算机硬件技术深刻影响着现代气缸压力数据采集系统的发展，高分辨率、高采集率、多通道、无相差和可以任意设定采样频率等特性的A/D板卡及一大批性能优越的相关测试仪器如转角信号发生器、电荷放大器、工控计算机等。

This system is centering on 8031 monolithic machine , deploy the corresponding outer-ring interface circuit , use assembler language develop, a monolithic machine being composed of controls the multifunctional generator.

本系统以8031单片机为核心，配置相应的外围接口电路，用汇编语言开发，组成的一个单片机控制多功能信号发生器。

The article introduced the principle and apply of the transistor avalanche through four example of transistor oscillator、 avalanche oscillator、 audio signal generator 、 flash metronome.

本文介绍了晶体管的雪崩原理，通过张弛振荡器、崩振荡器、音频信号发生器和闪光节拍器四个例子介绍了雪崩晶体管的应用。

With the continual improvement of function and veracity of instrument which belong to category of the pulse generator, the traditional handworked verification can not meet the need in practical operation and the automatic verification for this kind of instrument is urgently required.

随着脉冲信号发生器类仪器的功能和准确性的不断提高，使得传统的手工检定已经不能适应实际工作要求，迫切需要实现这类仪器的检定自动化。

The rates of adsorption and elution, and the sensitivity of the hemagglutin to inhabitors vary with the different influenza virus

因为陀螺是一种积分装置，所以信号发生器的零位灵敏度影响测量精度和测量分辨度。

The paper designs a single-chip microcomputer control muti _ function signal generator.

论文设计的是一个单片机控制多功能信号发生器。

This system with 8031 singlechip, configure corresponding periphery, interface circuit with assembly language development, consisting of a single-chip microcomputer control muti _ function signal generator.

本系统以8031单片机为核心，配置相应的外围接口电路，用汇编语言开发，组成的一个单片机控制多功能信号发生器。

Mainly engaged in the project are: 1, lithium battery protection board, power type (power tools, electric vehicles, model aircraft) lithium battery protection board; 2, switching power supply, adapters, chargers; 3, high power audio, amplifier, communications power inverter power supply; 4, solar cells program, program charger, portable power supply; 5, special power supply / power supply, as well as smart power management system; 6, LED drivers, all kinds of high-frequency electronic circuit design, update problem-solving / Circuit Design and so on; Electronics 8514C has°load, four-channel Tektronix TDS2014B Oscilloscopes, Tektronix Current Probe, Power Instrument / high voltage tester, spectrum analyzer proposed, frequency meter, signal generator, the high and low temperature environment for the control room and other advanced equipment and a group of highly professional and well-motivated research in science and technology, design professionals; have the ability to achieve all-round, the perfect integration services.

主要经营项目有：1、锂电池保护板、动力类（电动工具、电动车、航模）类锂电池保护板；2、开关电源、适配器、充电器；3、大功率音响、功放、通讯电源、逆变电源；4、太阳能电池方案、充电器方案、便携电源；5、特种电源/智能电源以及电源管理系统；6、LED驱动，各种高频电子电路的设计，更新解难/电路设计等；公司拥有艾德克斯8514C电子负载、泰克TDS2014B四通道示波器、泰克电流探头、功率仪/高压测试仪、频谱分析议、频率计、信号发生器、高低温环境控制室等先进设备和一批专业素质高、干劲十足的科研技术、设计人才；有能力做到全方位、一体化的完美服务。

The principle and the structure of the wave form generators at the base of central processor discussed in detail.

本设计详细介绍了基于单片机的多路信号发生器构造及其原理。

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。