及电路

Detailed description of the 58mm thermal print head structure, drive circuit and how to use.

详细说明：详细说明了58MM热敏打印头的结构，驱动电路及使用方法。

It makes up of the prolegomenon, the concepts and structure of short message service of GSM, the peripheral circuit design of TC35i module and the realization of short message service, the function realization of the control system, the structure design and function realization of the terminal system and the design of wireless communication system.

论文主要由绪论、GSM短消息业务的概述、TC35i模块的外围电路设计及短消息的实现、主控端系统的功能实现、终端系统的结构设计和功能实现以及无线通信系统的设计六部分内容组成。

It is found that, the quantum fluctuations of charge number and phase-difference in free thermal state are related to not only the parameters of the circuit, but also the temperature, and the average energy stored in the capacitance and inductance is equal to each other.

结果表明，体系中电荷数及相位差在自由热态下的量子涨落不仅和电路中器件的参数有关，而且还和温度有关，且储存于电感中的平均能量和电容中的平均能量分别相等。

This system used a 32-bit ARM microprocessor and an expander as the hardware carriers and theμC/OS-Ⅱas the real time operation system.

系统采用一个32位ARM处理器及扩展电路作为横机控制系统的硬件载体，采用μC/OS-Ⅱ作为控制系统的实时操作平台。

It analyses the principle and function of each part of the module, and proves the reasonability of the design.

分析了各部分模块的内部电路原理及功能，并通过试验实现了各项功能，证明该模块设计的合理性。

Often divided into two types:(1) sine wave oscillator, according to the network oscillation frequency of the different loop selected further divided into RC sinusoidal oscillator, LC sinusoidal oscillators, quartz crystal oscillators, voltage-controlled oscillator, voltage-controlled crystal oscillator and other forms;(2) non-sinusoidal oscillation device, also known as relaxation oscillator, is the use of capacitor charging and discharging and active device (transistor, FET, single-junction transistor, etc.) to generate the pulse-off square wave, rectangular wave, triangle wave, sawtooth wave, or these basic waveforms synthetic waveform and its frequency by the LC time constant charge and discharge circuits to decide.

常分两大类型：（1）正弦波振荡器，根据振荡环路中选频网络的不同，又分为RC正弦波振荡器、LC正弦波振荡器、石英晶体振荡器、压控振荡器、压控石英晶体振荡器等多种形式；（2）非正弦波振荡器，又称张弛振荡器，是利用电容充放电及有源器件（晶体管、场效应管、单结晶体管等）的通断来产生脉冲方波、矩形波、三角波、锯齿波或这些基本波形的合成波形，其工作频率由LC充放电电路的时间常数来决定。

The display, storage, redisplay, diagnosis and tekecommunications of ECG can be achieved conveniently and provide convenience for many cardiopaths with its powerful functions and low cost.

方便地实现了心电信号的显示、存储、回放、诊断分析以及远程通信，系统将大部分需要由传统硬件检测电路来完成的功能改由软件来实现，便于今后的功能扩展。强大的功能及低成本为众多心脏病患者提供了方便。

In this paper, the main circle and control system of the IGBT inverter-based resistance spot welding power with 8098 microcomputer are introduced.

对所研制的8098单片机控制的IGBT逆变点焊电源的主电路及控制系统进行了介绍。

The design and application of interface circuit based on three resolver/digital converter modules and the ISA bus are presented.

摘 要：介绍基于ISA总线的三路旋转变压器/数字转换模块接口电路的设计及应用。

This text introduce the theory of nuclear magnetic resonance and the design of a NMR system.

本文介绍了核磁共振的原理及小型核磁共振系统电路部分的设计。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐