仪器工具的英文
instrument
例句与用法
- Mr . ip said , " when it was sunny , we had to work under very hot weather
一下雨，我们要用最快的速度收拾所有仪器工具避雨，以免沾水损坏。 - If it rained , we had to pack up our equipment to take shelter without delay . to meet the tight schedule , we often had to had " afternoon tea " for " lunch " .
一下雨，我们要用最快的速度收拾所有仪器工具避雨，以免沾水损坏。一放晴，就要立刻于三十几度高温下继续工作。 - If it rained , we had to pack up our equipment to take shelter without delay . to meet the tight schedule , we often had to had " afternoon tea " for " lunch " .
一下雨，我们要用最快的速度收拾所有仪器工具避雨，以免沾水损坏。一放晴，就要立刻于三十几度高温下继续工作。 - The chinese people were the first inventors of many kinds of modern - day equipment . of course , at that time perhaps it was a little bit cruder or in a very elementary form . but then later they developed more and more
这个故事发生在中国，现代的许多仪器工具都是由中国人最早发明的，当然那个时候也许比较粗糙，只是最基本的构造而已，不过后来越来越发展，或是欧洲人或美洲人从他们那边得到概念，而加以进一步改造。 - This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering . at first , this paper gives the brief introduction of the history and present status of accelerometer and its testing technology , the working principium and math model of the liquid floated pendu - lous accelerometer , and then , decides the binary width pulse force retrim loop as the design proposal of testing system , researches the transfer function of every part in the system emphasizly , analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system , and designed the correcting net , analyses the basal problems such as resolution , sampling restraint , precision and so on , designs the hardware testing circuits such as preamplification , band - pass filter , alternating amplifier , phase sensitive demodulatorn , pulse - width modulation , frequency scale circuit , moment current generator . finally , using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system , realized the testing functions
首先对加速度计及其测试技术的发展历史和现状,液浮摆式加速度计的工作原理和数学模型等作了简要的介绍,然后确定了以二元调宽脉冲再平衡测试回路为设计方案,并从控制理论的角度进行了分析,着重研究了系统中各部分的传递函数,利用系统开环传递函数分析了系统的稳定性,同时设计了系统的校正网络;分析了二元调宽脉冲再平衡测试回路的分辨率、采样约束以及测试精度等基本问题,并按照系统分析的结果设计了包括前置放大、带通滤波、交流放大、相敏解调、脉宽调制、频标电路以及力矩电流发生器等测试系统各部分硬件电路,验证了电路的正确性,最后按照测试系统的要求,采用了美国ni公司专为测试领域所开发的虚拟仪器工具? ? labview作为测试软件开发工具,利用该图形化编程语言完成了测试系统软件部分的设计,实现了测试功能。
