查询词典 digit circuit

Record ways presented by grade four students in test question five (Divide three-digit by three-digit, can get one-digit and a three-digit, which is an inclusion division with reminder question) and test question 7 (Divide two-digit by three-digit, can get one-digit and a two-digit, which is a halved division with remainder question) of the written information are the least.

所呈现的109种记录方式为最多；四年级学童在笔试资料的第5题（三位数÷三位数＝一位数…三位数，有余数的包含除问题。）及第7题（三位数÷二位数＝一位数…二位数，有余数的等分除问题。）所呈现的29种记录方式为最少。

And due to the nature of the data acquisition, three data acquisition circuit board are adopted. They are voltage to digit data converting circuit board, current to digit data converting circuit board and digit data input/output circuit board. These circuit boards are used to acquire the main running parameter of the multifunctional experimentation equipment and to control the output of alarm message.The monitor and control program is developed on Delphi5.0 which is an excellent product of Borland Corp.

数据监控系统的硬件以一台工业控制PC机为核心，并根据采集信号的性质配置了电压-数字量转换板、电流-数字量转换板及开关量输入／输出板，对实验台的主要运行参数进行采集并进行报警控制；监控系统的软件以BORLAND公司的Delphi5.0作为开发平台，采用了面向对象的设计方法，运用了多线程、数据库等技术，做到了界面美观、操作方便。

The controller includes multi-channel switching circuit, interface and conversation circuit, input and output circuit, manual button control circuit, LCD driving circuit, real-time clock circuit, preparedness store circuit, keyboard processing circuit and dial switch circuit.

该控制器硬件包括多通道切换电路、接口及转换电路、输入输出电路、手动按钮控制电路、手动与自动切换电路、液晶显示驱动电路、实时时钟电路、预案存储电路、键盘处理电路、拨码开关电路。

Total circuit scheme and time sequence of tool design and implementation have been designed on the AIL logging characteristic. The design and analysis for circuit unit have been carry out on the several units such as main control circuit, signal phantom circuit, signal control circuit, amplifier circuit, A/D circuit, transmitter drive circuit and power circuit.

按照AIL的结构特点，进行了仪器总体设计，设计了仪器工作电路原理和工作时序，在此基础上，进行了主控制电路、信号幻像转换电路、信号控制电路、放大电路、A/D转换电路、发射驱动电路、电源电路等单元电路的分析和设计，从而完成了仪器单元电路的设计与实现。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

This invention relates to a DC linear motor digital controller including a central processor circuit, a data memory, a program memory, an A/D conversion circuit, a D/A conversion circuit, a linear shift orthogonal code pulse signal circuit, a signal isolation circuit, among which, the center processor circuit is composed of a special DSP chip controlled by the motor, a complicated programmable logic device CPLD combining with a peripheral expanding circuit, said digital controller fully utilizes the motor to control the special DSP chip to integral DSP kernel CZXLP and the rich external circuit in a single chip to make up of a digital controller for controlling high frequency response DC linear motor with small volume, low dissipation and high reliability.

高频响直流直线电机数字控制器，属于电机自动控制技术领域，目的在于获得快速、高精度往返运动的控制效果，实现高频响直流直线电机的精密位置跟踪控制功能。本发明包括中央处理器电路，数据存储器，程序存储器，A/D转换电路，D/A转换电路，直线位移正交编码脉冲信号电路，信号隔离电路；中央处理器电路由一个电机控制专用DSP芯片，复杂可编程逻辑器件CPLD，结合外围扩展电路组成。该数字控制器充分利用电机控制专用DSP芯片将高性能DSP核C2xLP和丰富的功能外设电路集成在单个芯片上这一特点，构成了一个体积小、功耗低、可靠性高和功能比较齐全的高频响直流直线电机控制用的数字控制器，使系统的整体成本大大降低。

Set off from the function request analysing the instruction fuse, have done more detailed introduction first to it's every ingredient; The design and concrete parameter having followed , carrying out a scheme on the circuit directing fuse power source boosting circuit , host to get angry , electricity basics circuit such as insurance circuit , self-destroying circuit , self-deactivating circuit here on the basis, are chosen; Constitute every circuit optimization finally, having become a overall circuit module

从分析指令引信的性能要求出发，首先对其各组成部分作了较详细的介绍；随后，在此基础上，对指令引信的电源升压电路、主发火电路、电保险电路、自毁电路、自失能电路等基本电路进行了方案设计和具体参数选取；最后，将各电路优化组合成了一个整体电路模块。

Finally, took AT89S52 as the core, Designed contains the integration voltage-stabilizer circuit, the clock electric circuit, repositions the electric circuit, the liquid crystal display and the control circuit, ISP in-system programmable devices, the RS232 serial communication electric circuit in the system, the switching circuit, LED display circuit chip and the ISD2590 pronunciation chip recording/broadcast electric circuit and so on nine kind of periphery electric circuits, and compiles for the integrity schematic diagram.

最后，以AT89S52为核心，设计出包含集成稳压电路、时钟电路、复位电路、液晶显示与控制电路、ISP在系统可编程器、RS232串行通信电路、开关电路、发光二极管显示电路和ISD2560语音芯片的录音/播放电路等九种外围电路，并汇总为完整的原理图。

The function of digit trigger circuit is used to turn voltage of simulate trigger circuit to a digit, one to adjust to conduction angle and more to control the trigger pulse by controlling the digit.

数字式触发电路是将模拟式触发电路中的控制电压转变成数字量，通过对数字量的控制，达到对导通角的调节，从而控制触发脉冲。

left push ; right push ; three digit spread ; four digit spread ; three digit unite ; four digit unite ; step

着重介绍三个内容：与数制相关的基本概念，计算机中常用数制的认识，各种不同数制之间的转换。1与数制相关的基本概

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？