气体测量

Most of the molecular characteristic absorption is very weak, and the absorption line width is very narrow that can't be measured by traditional methods.

TDLAS系统的关键是利用激光二极管有很高光谱分辨率和可调谐性的特点，可以对特定分子在特定光谱范围内的一条振转线的光谱吸收进行测量而反演吸收气体的浓度，而且能够把待测分子与背景的干扰区分开来。

The method of high-resolution Fourier-transform spectroscopy study on the Absorption line intensities is discussed. With a series of measurement and fitting the line profiles, altogether 1 760 Absorption lines of phosphine were obtained, corresponding to five bands in the 1 950-2 480 cm~(-1)region and four bands i...

文章探讨了高分辨傅里叶变换光谱方法研究气体样品吸收线型的基本原理，并通过实验测量以及程序拟合谱线线型，得到了磷烷分子在1950~2480cm-1波段的5个吸收带以及3280~3580cm-1波段的4个吸收带中的1760条谱线线强度，经分析其结果误差在±6%左右。

This paper presents a simple method for measuring gas adiabatic constant by use of simple harmonic oscillation .

本文介绍了一种简单的利用简谐振动现象测量气体的定熵指数的方法。

ABSTRACT In this paper, an investigation on the helical ports was carried out in a steady-flow rig. The three velocity Components of air flow through the intake valve of several typical helical ports were measured by hot-wire anemometry for analysing the relationships between intake port geometry and swirl level as well as flow resistance.

本文在稳流气道试验台上对螺旋进气道进行了大量的研究，为了分析螺旋进气道的结构形状与涡流强度及流动阻力的关系，采用热线风速仪测量并分析了不同气道的气门口气体流速。

A measurement pool is made by hanging a pair of nitrogen-filled small glass balls in non-homogenous magnetic field. The angle signal of the dumbbell ball torsion is magnified using light lever. In order to enhance the sensitivity and accuracy, CCD is used to probe the light signal spot. According to the magnetic susceptibilities of NO and NO2, the influences of these two gases on the analyzer are analyzed, and the application environment for the oxygen detector is discussed.

通过在非均匀磁场悬挂一对充氮玻璃小球构成测量池；采用光杠杆对哑铃球扭转的角度信号进行放大，由CCD对光点位置信号进行探测，以提高分析仪灵敏度和精度；由NO、NO2的磁化率特性分析这两种气体对分析仪的影响，说明测氧仪的应用环境。

In this study, a multi wavelength analysis method was applied to the temperature measurements of a butane air mixed gas flame.

在研究中，多波长分析方法用于丁烷－空气混合气体燃烧火焰的温度测量。

In order to overcome the disadvantage of traditional probe, the rapid enthalpy probe system we devised measure the molar weight of sample gas by using a known volume gas container instead of MFC, making it possible to measure the enthalpy of one point in several seconds.

本文介绍的快速焓探针测量系统中，用一个已知体积的储气罐获得被抽样品气体的摩尔量，从而克服了传统焓探针的缺点，实现了在几秒之内完成对一点的焓值测量。

General Vibration-proof Pressure gauge is applied to the occasion with dynamic load and vibration or to measure the pressure of gas and liquid which can not corrode copper alloy.

一般耐震压力表，用于有动载荷及振动的测量场所，对铜合金没有腐蚀作用的气体或液体进行测量。

It is one Kind of thermometers to measure middle and low temperature on the spot .lt could be used to directly measure temperature of liquid, vapor and gas ranging from -80t ℃ ot 500℃.

应用双金属温度计是一种测量中低温度的现场检测仪表。可以直接测量各种生产过程中的-80℃~+500℃范围内液体、蒸汽和气体介质温度。

The discharging current of the accelerator is measured with the Rogowski Coil,the discharging characteristic of the fast electromagnetic valve and the Ar-gaspressure in the coaxial plasma gun are measured with small piezo-electricpressure probes, and the velocity of the plasma in the coaxial plasma gun ismeasured with magnetic pickup coils.

使用压力传感器研究了所研制脉冲电磁阀门的时间特性，以及等离子体碎片加速器同轴枪内中性气体的压力分布；设计罗科夫斯基线圈并测量了本装置的放电电流；设计磁探圈并测量了同轴枪内等离子体的平均速度。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。