查询词典 circuit board

The shutdown is to pull out the plug-in board-by-block, each pulled out a piece of plate on the boot machine running observation, once pulled out a piece of normal operation after the motherboard, then the cause of the malfunction is the fault of the plug-in board or the corresponding I / O Bus slot and load circuit fault.

该方法就是关机将插件板逐块拔出，每拔出一块板就开机观察机器运行状态，一旦拔出某块后主板运行正常，那么故障原因就是该插件板故障或相应 I/O 总线插槽及负载电路故障。

The function,composing and designing methods of each module about the hardware circuit of the signal processing board are introduced in detail,and the software flow about signal processing board is described in detail.

详细介绍了该信号处理板硬件电路设计中各个模块的功能、组成和设计方法，并对信号处理板软件流程做了详细说明。

He thinks, advocate board some parts " can't bear uglily ", he wants to change one's costume or dress advocate board, make the permutation of chip and circuit more beautiful.

他认为，主板的有些部分&丑陋不堪&，他想改装主板，使芯片和电路的排列更加美观。

KEYENCE: PLC sensor IDEC: Relay button lights lighting illumination button selector switch selector switch to choose a single button operation switch cam switch dry buzzer board component nameplate FUJI Air switch, leakage switches, contactors, thermal overload relays MITSUBISHI: programmable logic controller inverter leakage circuit breaker air circuit breaker AC contactor relays its hot NKK Switches: shaking his head switches, button switches, tactile switches, rotary switches, key switch, slide switch and so on.

KEYENCE：PLC 传感器 IDEC：继电器按钮指示灯照明按钮选择开关照明选择开关选择按钮开关单操作干式凸轮式开关蜂鸣器元件铭牌板 FUJI 富士）空气开关、漏电开关、接触器、热过载继电器 MITSUBISHI(三菱：可编程控制器变频器漏电断路器空气断路器交流接触器其热继电器 NKK开关：摇头开关、按扭开关、触觉开关、旋转开关、钥匙开关、滑动开关等。

This paper mainly introduces the hardware and software design of the wireless sensor network node for environmental monitoring. The hardware includes the design of the data acquisition module, the data processing module and wireless communication module including on-board antenna, balun circuit and PCB design of the high-frequency circuit.

本文主要对环境监测无线传感器网络的节点的软硬件设计进行了介绍，硬件方面重点介绍了数据采集模块，数据处理模块的接口设计，无线通讯模块的板上天线设计、巴伦电路和高频电路设计要点。

The peripheral circuit of A/D, D/A, including the interface circuit and the anti-interference to the hardware is extended on the basis of ARM developed board.

在ARM开发板的基础上对A／D、D／A等外围电路进行了扩展，设计了信号放大、分压等接口电路，并加入相应的硬件抗干扰措施。

An ATM89C51 is used as the MCU of main board, integrating with the standard circuit and IO to extend communication channel. Main board must work steady and easy to maintenance. Its main job is communicating with computer, sampling from every hardware operation, driving the LCD system.

论文的主要工作包括以下四个方面：1 硬件电路设计思路：使用可靠的硬件电路技术，以AT89C51为主板的微处理器，配以外围电路扩展通讯信道，构成主控制器和艏艉站控制箱框架，可靠性高、维修性好。

This system is composed of 32×32 the lattice LED board, the LED board driving circuit, the electro-optical writing pen, the keyboard and the coordinate display panel and the master-control unit.

该系统由32×32 LED点阵屏、点阵屏驱动电路、光电手写笔、键盘、模式与坐标显示板和主控制器组成。

The invention relates to a desk type drill machine for preventing drill head wreckage, comprises chassis, supporting post, operating board covered in middle of supporting post, cabinet and generator; cabinet is equipped with tension pulley pressure sensor, belt tension unit and pressure foil gage; tension pulley is compacted on driving belt of drill machine, pressure foil gage is installed on top bar of tension pulley, the pressure foil gage is in electric connection with input end of controlling circuit, output controlling end of controlling circuit is connected to power input end of generator.

本发明是防止钻头折断的台式钻床，包括底座、支柱、套在支柱中部的工作台、以及机箱和电机，机箱上设有张紧轮压力传感器，由皮带张紧装置和压力应变片组成，其中的张紧轮紧压在钻床的传动皮带上，压力应变片设在张紧轮的顶杆中，压力应变片与控制电路的输入端电连接，控制电路的输出控制端连接在电机的电源输入端中。

In this design, hardware circuit adopts liquid crystal screen and program sensor keyboard as interactive interface, 96 single-chip as chief controller, analog multi-circuit switch as transmission signal. To improve conversion accuracy, I also bond an analog to digital converter%26mdash;AD1674, so the programs mainly contain the display program design of the LCD module, the key-board control program and cyclical monitoring of various parameters and so on.

本文的硬件电路采用液晶显示屏和触摸式键盘作为人机交互界面，用80C196KB作为主控制器，用模拟多路开关传输信号，并且为了提高转换精度，外接了模数转换器AD1674，所以本设计的程序主要包括液晶显示程序、键盘管理程序、控制巡回采样等模块。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。