查询词典 string-galvanometer

Through the discussion of computing formula for measuring high resistance by Mdoel NG82-1impact corrent galvanometer, it is discoverde that it is much casier to do calculation by natural logarithm .

通过对NG82－1型冲击电流计测高阻计算公式的讨论，找到用自然对数计算较为方便。

The condition of the minimum relative error is theoretically given. That is the place of the balance point should be chosen according to the ratio of the measured resistance Rx to the internal resistance Rg of the galvanometer in order to get the minimum relative error.

并在此基础上讨论了滑线电桥的灵敏度及其对所测电阻Rx的影响，从理论上给出了滑线电桥最小相对误差的条件：要使滑线电桥灵敏度所引起的相对误差最小，电桥平衡点的位置应按待测电阻Rx与检流计内阻Rg的比值来确定。

Is focussed on a thermojunction connected in circuit with a galvanometer.

放射'。''物集中在热电偶上。

A pyrometer for estimating the temperature of distant sources of heat; radiation is focussed on a thermojunction connected in circuit with a galvanometer .

估测远处热量来源的高温计；用检流计连接在线路上并且放射物集中在热电偶上。试图击中目标。

The choice of the transformer includes: Main transformer use the main technique in number, capacity, model number...etc. in set data of the transformer to really settle; The electricity lord connected the line to introduce primarily the electricity lord connects the linear importance, design according to, the basic request, every kind of merit and shortcoming and lords that connect the line form connects the linear choosing more, the lord that combine to establish the in keeping with my plant the request connects the line; The short-circuit galvanometer is regarded as the most important link, this thesis introduced the calculating purpose in short-circuit electric current, assumption term, general provision, the calculation, network transformation of a parameter detailed, and each calculation etc. knowledge that short circuit order; The choice of the high pressure electricity equipments includes the mother line, high pressure breaks the road machine and insulate the switch, electric current to feels with each other the machine, electric voltage feels with each other the choice principle of the machine, high pressure switch cabinet with request, and proceed to these equipments the school check with the related introduction in product.

变压器的选择包括：主变压器的台数、容量、型号等主要技术数据的确定；电气主接线主要介绍了电气主接线的重要性、设计依据、基本要求、各种接线形式的优缺点以及主接线的比较选择，并制定了适合要求的主接线；短路电流计算是最重要的环节，本论文详细的介绍了短路电流计算的目的、假定条件、一般规定、元件参数的计算、网络变换、以及各短路点的计算等知识；高压电气设备的选择包括母线、高压断路器、隔离开关、电流互感器、电压互感器的选择原则和要求，并对这些设备进行校验和产品相关介绍。

Commonly used has the galvanometer, the amperemeter, a volt idea, the electric bridge, the potential difference counts and so on.

常用的有电流表，电流表，电压的概念，电桥，电位差计数等。

Its drilling unit consists of laser, optical beam expander, galvanometer deflective mirror and focus system.

制孔单元由激光器、光学扩束、振镜和聚焦系统构成。

The method that measuring horzontal component of the earth magnetic field with digital quantometer is introdnces, the computational formule are given, systematic error are discussed, the advantages of the this method with tangent galvanometer measuring ho

摘要介绍了用数字冲击电流计测量地磁场水平分量的方法，给出了计算公式，对系统误差进行了讨论，简述了该方法与用正切电流计法测量地磁场水平分量的优点。

We design hardware logic for salinometer with Quartus II software, and use SOPC Builder to design Nios II, CPU、arithmetical unit、MEMORY、TIMER and other mature IP core are apply to salinometer. We use the hardware description language VHDL to design bottom drives, and make them as customer IP core, such as excitation source IP core、high sensitive digital galvanometer IP core、analog temperature measurement IP core、digital temperature measurement IP core、calendar and time IP core、keyboard IP core、LCD IP core.

使用SOPC Builder软件生成Nios II软核，将CPU、运算器、存储器、定时器等成熟的IP核应用到盐度计设计中，同时使用硬件描述语言VHDL将底层驱动逻辑设计为用户IP核，如激励源IP核、高灵敏度数字检流计IP核、模拟测温IP核、日历时钟IP核、数字测温IP核、键盘IP核、液晶显示IP核等。

But the laser galvanometer scanning style has the intrinsic graphic distortion, it expressed as the pillow shaped field distortion along x direction, pillow-shaped field distortion along y direction and general linear distortion.

但是激光振镜扫描方式存在着固有扫描场的几何畸变，表现为x方向上的枕形失真、y方向上的桶形失真和一般的线性失真。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。