仪器灵敏度

在X射线波谱仪上用仪器灵敏度因子法进行定量分析

On the X-ray wavelength dispersive quantitative analysis with the instrument sensitivity factor

介绍了用红外传感器和微处理器组成的CO2测试仪，讨论了增加仪器灵敏度和消除误差的方法。

A kind of CO 2 infrared digital monitor is made with infrared sensors and advanced microprocessor . The ways of increasing instrument sensitivity and decreasing errors of measurement are discussed .

逐层确定RST仪器灵敏度的新思路

A New Approach to Determining Sensitive Coefficients of RST

发现在两种进样系统混入N2气都能使等离子变的强壮，但只有在膜去溶进样系统中加入少量氮气可以显著提升仪器灵敏度。

We found , adding nitrogen with both introduction systems , the ICP could become more robust . However , only using membrane desolvation system with nitrogen , the sensitivity could be improved .

实验室测试和晴空飞行测试表明，在一定的条件下，仪器灵敏度指标达到0.2K；

The tests both in laboratory and on the airplane suggest that under certain conditions the tested sensibility can be less than or equal to 0.2K .

研究了利用燃烧电导法测定（WTi）C粉中硫的测定条件，建立了分析方法，方法相对标准偏差5%左右，仪器灵敏度为3×10-6g/μs，最低检测限为00001%。

A new method of measuring sulphur in ( W-Ti ) C powder by burning-electric conductivity method has been established with a relative standard deviation of 5 % , sensitivity of 3 × 10 ~ ( - 6 ) g / μ s , minimum measurable sulphur 0.0001 % .

离子源附加一聚集电子束的小磁铁，使仪器灵敏度达到0.4A/Pa以上。

A small magnet is attached to the ion sourc for collimating electron beam so as to increase the sensitivity of the instrument to over 0.4A/Pa .

当He进样量＞5×10－7ml.atm时，仪器灵敏度稳定，S（3He）／S（4He）＝0.41，在本系统中，仪器对He原子的探测极限达到了1010。

When the input quantity of He is more than 5 × 10-7 ml ' atm , the sensitivity of QMS can be maintained stably , and S3He / S ( 4He ) equal to 0 . 41 . The detec limitation of such system for He is 1010 atoms .

仪器灵敏度高，测量范围大；能量响应特性好。

High sensitivity , wide measurement range ; very good energy response characteristics .

利用上述简化模型对文献中不同纯元素特征X光的仪器灵敏度进行了计算和讨论。

The " instrument sensitivity " of the characteristic X-ray of the pure elements determined in the literature is calculated and discussed by using this simplified model .

环境磁学凭借其简单、快速、对样品无破坏性、磁学仪器灵敏度高等特点，在土壤污染监测和防治方面取得了很大进展。

Depending on the characteristics of simplicity , rapidity , non-destructivity and high sensitivity , environmental magnetism has received much progress in monitoring and governance in soil pollution .

ZIC-A型离子色谱仪中淋洗液的浓度和pH值对分析结果有很大影响，实验证明选择适当的淋洗液浓度和pH值，既可改善分离效果，又能缩短分析时间，提高仪器的灵敏度。

Concentration and pH value of eluent in ZIC - ⅱ A ionic chromatography impacts heavily on its testing results . Selecting suitable concentration and pH value in eluent could improve separating effect , shorten testing time and enhance the sensitivity of the meter .

提出了等效吸光度的概念，在不考虑噪声的理想情况下，推导出以软件完成AD变换的光电吸收式仪器的灵敏度及最佳灵敏度对应的光程。

The concept of equivalent absorbance is proposed . Under ideal conditons and without the consideration of noise , the sensitivity and the optical path corresponding to optimal sensitivity are derived for the absorptiometer that uses software for A / D conversion .

本文利用IRAS的透射率计算结果，还进行了大气温度模拟反演的一系列敏感性试验，包括通道组合、物理反演方法的初估廓线选择和仪器通道灵敏度对温度反演的影响等。

Under the calculation results of IRAS ' channel transmittance , the paper performs sensitivity tests of temperature profile retrieval . These tests are about how do different channel groups ; different guess profile and different instrument noise influence the temperature profile retrieval .

通过变换仪器的灵敏度（400～200），就能把装在测量皿中3000ng以下的铀检测出来，提高了痕量铀分析的准确度，扩大了测铀量程。

By changing the laser fluorometer sensitivity ( 400-200 ) , up to 3000 ng uranium in the cuvette can be detected . Thus , both analytical accuracy and detectable range are improved .

结果表明，仪器测量灵敏度、精密度较好。

The results show that the instrument is sensitive and precise .

本文还介绍了对仪器进行灵敏度测试的实验方法和结果。

The test methods of instrumental sensibility and its results are shown .

仪器除灵敏度高外，还具有分辨本领高，扫描速度快以及可以进行50米以上远距离控制等特点。

The instrument has highresolution , specification of fast speed scan and remote-control ability over 50m distance .

给出这类仪器辐射灵敏度的计算方法及仪器设计原则。

The calculating method of radiant sensitivity and the principle of design for the scanner are given .

本工作对补偿中子石油测井仪器的灵敏度进行蒙特卡罗方法数值模拟研究。

The sensitivity of compensated neutron logging ( CNL ) tool is researched ( using ) Monte-Carlo method .

该仪器具有灵敏度高、检出限低、样品前处理简单等优点，实现了液体、固体样品中超痕量汞的直接测定。

And it has high sensitivity , low detection limit and simple sample pretreatment for direct analysis of liquid and solid samples .

传统声信号探测接收主要采用拾振器和声压水听器等传感器，然而这些探测仪器的灵敏度一般较低。

For the acoustic signal detection , seismometers and pressure hydrophones have been used in the traditional methods . However , these detectors usually have lower sensitivity .

本文在基本不改变仪器固有灵敏度的前提下，采取记录光线二次反射法，以提高仪器的记录灵敏度。

In this paper we describe a method to improve the recording sensitivity by twice reflections of light ray without changing the inherent sensitivity of the instrument .

考察了基体效应及接口效应对仪器测定灵敏度的影响，选择适当的待测元素同位素克服了质谱干扰，定量加入内标元素有效校正了基体效应、接口效应及仪器波动等因素而带来的测量偏差。

The influence of mass spectrometry interference has been corrected by selecting different isotopes . The adding internal standard elements has corrected the effects of matrix and interface efficiently .

另外，利用自由空间耦合光波导所具有的滤波功能，可使用普通半导体激光器作光源，因此可进一步降低成本、同时提高仪器的灵敏度。

As the free-space coupling optical waveguide has a filter function , the common semiconductor laser can be a choice of light source , which can further reduce the cost and improve the sensitivity .

介绍了软件设计中所采用的抗干扰、系统补偿、系统自检等技术，达到简化电路、提高仪器的灵敏度和可靠性的目的。

This paper reports the technologies of anti-interference , system compensation and system self-checking adopted in software design which not only simplify the circuit but also improve the sensibility and reliability of the instrument .

该仪器具有灵敏度高、选择性好、抗干扰能力强等特点，可用于交通安全检测、酒厂和食品工厂发酵监控。

The detector is characterized by high sensibility , good selectivity and strong anti _ interference capability . It can be applied to safety inspection in transportation and fermentation monitoring in breweries and food products factories .

用X射线全反射技术可以使X射线单色化，用这种单色化的特征X射线作为激发源可以大大降低X射线荧光光谱仪的本底信号，提高仪器的检测灵敏度。

Using total X ray reflection Technique , the monochromatic X ray can be formed . When the monochromatic characteristic X ray is used as a exciting samples , the backgrounds of X ary Fluorescence spectrometer ( XRF ) is much reduced and the high sensitivity of XRF is achieved .

本文研究气相色谱填充柱在不同柱流量和不同浓度的苯系物样品，使用尾吹气对FID检测器灵敏度的影响，以确定分析仪器的最佳灵敏度。

The impact of makeup gas for packed column on sensitivity of FID ( Flame Ionization Detector ) was studied with different concentration sample and different carrier gas flow in order to find out optimal sensitivity of Gas Chromatogram .

实验表明该仪器的测量灵敏度达到2×10-4。

Our experiment has proved that the measurement sensibility of this sensor is 2 × 10 - 4 .