说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 两级电点火具
1)  twostage electrical ignitor
两级电点火具
1.
This paper presents a mathematical model of onedimensional flow combined with zerodimension, which is based on the experimental results of twostage electrical ignitor.
在分析两级电点火具实验结果的基础上,建立非定常变质量动边界一维流动与零维相结合的数学模型。
2)  electric ignitor
电点火具
1.
As a result of the electric ignitors defects,accidents often take place due to rocket projectile being fired unexpectedly.
火箭弹常因桥丝式电点火具电性能的缺陷而意外发火造成事故,而且随着现代战场及勤务处理电磁环境的日趋恶劣,事故会越来越多。
3)  Electric igniter
电点火具
1.
Transient pulse test (TPT) is an efficient nondestructive method of testing electric igniter,and its principle is introduced briefly.
简要介绍了电点火具无损检测方法的原理,针对火箭弹发动机中电点火具的特点,利用电点火具的温升曲线,采用神经网络识别技术,对电点火具的质量进行判别,无损检测判别结果与实际发火试验结果基本一致。
2.
According to the character of the B/KNO3 fire composition,three igniters with different charging structure are comparative tested and analyzed,and aimed at the parameters of the electric igniter,calculation and design are made for the ignition charge,intermediate charge and igniter charge ring,then the charging structure of electric igniter for a certain solid rocket motor is determined.
基于B/KNO3点火药的特性,采用三种不同药型的点火具装药进行对比试验和分析,并针对电点火具的性能指标要求,分别对传火药、过渡药、点火药环进行了计算和设计,确定了适用于某固体火箭发动机用电点火具装药的药型。
3.
According to the principle of thermal flux measurement,a foilshaped Pt thermal flux measurement meter and two thermal flux testing devices for electric igniter of solid propellant rocket motor were designed and manufactured.
依据热通量测试原理,制作了箔式铂热通量计和固体火箭发动机电点火具热通量测试装置。
4)  Two stage ingition combustion system
两级点火燃烧系统
5)  two-order rocket
两级火箭
1.
Discussed the formula in references[1~2]for calculating the maximum speed of a two-order rocket about how to distribute the rocket mass,pointed out their defaults.
本文对文献[1~2]给出的使两级火箭速度最大的质量分配计算公式进行了讨论,指出其中存在的问题,并推导了精确的计算公式。
6)  igniter [英][ig'naitə]  [美][ɪg'naɪtɚ]
点火具
1.
The reasons causing safety fault to the igniter with the method were analysized as the non-uniform density of delay powder,the sticking of protechnic charge to the internal wall of delay tube and the failure of alarm device,etc.
为提高某辐射式延期点火具的安全性,在对比贝叶斯网络(BN)技术和故障树分析(FTA)技术的基础上,针对火工品系统实际情况,提出了综合利用FTA与BN技术进行火工品安全失效分析的新方法。
2.
The experiments on a two stage electrical igniter used in regenerative liquid propellant guns have been performed.
再生式液体发射药火炮(RLPG)用两级电点火具实验研究,主要包括燃烧稳定性控制、结构小型化及电源调试。
3.
To study the transient combustion performance of igniter for base bleed unit under rapid depressurization,a semi-closed bomb and a high speed digital video camera were used to simulate and record the combustion phenomena.
为了研究底排点火具在弹丸出炮口时瞬态燃烧特性及工作性能,采用半密闭爆发器模拟炮口压力突降过程,借助高速录像系统,开展了高降压速率条件下底排点火具燃烧特性的实验研究。
补充资料:传感器如何进行无源校准及两点特别说明
a)首先读出变送器内部设置的4mA压力值和20mA压力值,看是否与实际的4mA压力值和20mA压力值相一致,若一致,则直接更改4mA压力值和20mA压力值到量程迁移后的压力值即可。

b)如果变送器内部设置的4mA压力值和20mA压力值,与实际的4mA压力值和20mA压力值不一致,可先把实际的4mA压力值和20mA压力值折算到变送器内部设置的4mA压力值和20mA压力值,再折算量程迁移后的压力值,将折算值更改到4mA压力值和20mA压力值便可。例如:假设一台变送器量程为-10bar-50bar,想将量程迁移到10bar-40bar,读出变送器内部设置的4mA 压力值和20mA压力假设为0-10Kpa,进行如下折算:-10bar 和0相对应,50bar和10Kpa相对应,通过计算,可以计算出折算方程为:P折=P实/6+10/6('P折'为折算后的压力值,'P实'为实际压力值),由此方程可计算出折算后4mA压力值应为:10/6+10/6=3.333KPa,折算后20mA的压力值应为:40/6+10/6=8.333KPa, 于是可以通过组态软件将变送器内部的4mA压力值设置为3.333,将20mA压力值设置为8.333便可。

特别说明:

1)量程迁移只能在原量程范围内迁移,若迁移超出原量程范围,则变送器的线性度变会变差。

2)进行无源校准时,量程迁移不可过大,迁移比最好不要大于3:1,过大会造成变送器输出不稳定,而且分辨率较低。大迁移比量程迁移在要先进行增益设置,再进行输入压力校准。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条