其他检测

仪器是科学技术发展的重要“工具"。著名科学家王大珩先生指出，“机器是改造世界的工具，仪器是认识世界的工具"。仪器是工业生产的“倍增器"，是科学研究的“先行官"，是军事上的“战斗力"，是现代社会活动的“物化法官"。不言而喻，仪器在当今时代推动科学技术和国民经济的发展具有非常重要的地位。

具有很高的先进性、新颖性、实用性和可靠性，不仅可以用于激光加工设备、焊接设备、真空设备、印刷设备、医疗设备、半导体设备、高速主轴、注塑机等，也可以应用于多种实验室设备，例如石墨炉原子吸收仪、等离子体光谱仪、等离子体质谱仪、X射线荧光仪、X射线衍射仪、扫描电镜、透射电镜等。

气凝胶具有极低的固态热传导，以及气态热传导，在常温常压下热导率可以低至0.013W/(m?K)，是所有固态材料中隔热性能好的一种。 利用TC3010测量得到的气凝胶粉末导热系数，从结果来看，不同工艺下样品的导热系数差异还是比较明显的。

文章作者建立了一套完整的生物气溶胶研究平台,从生物气溶胶的发生到特性研究,再到生物气溶胶的体内注入研究,数据详尽,内容翔实,研究领域处于世界前沿. 文中具体介绍了气溶胶发生器,气溶胶粒径测定仪,生物撞击采样器等仪器的使用方法,数据分析等

Rocker 系列真空帮浦皆可转换成空压机，只要将消音器取下并换上选购的转换包套件即可转换成空压机使用

采用LaVision公司的DaVis8.2软件平台和两台CCD相机，建立了一套双视角显微层析成像全息流场测量系统。

采用美国Artium公司无需光纤的集成了半导体泵浦固体激光器（DPSSL）的激光相位多普勒粒子干涉仪（PDI-100MD）对喷雾对象中的喷雾液滴粒子粒径和速度进行了实时测量和记录。这是一种表征喷雾特性的有效方法。

采用Ekspla由30皮秒20赫兹30毫焦激光器，皮秒光学参量振荡放大器PG401和参量差频器构成的振动和频光谱（SFG）测量系统，对液滴撞击覆盖LB（Langmuir-Blodgett）膜表面的动力学过程进行了研究和分析

采用LaVision的DaVis7.2版数字图像相关DIC分析软件和ImagerProX4M制冷型带相机头内存14比特高性能CCD相机构成的测试系统，测量分析材料疲劳断裂测试过程中的J积分参量。

层析-PIV，Tomo-PIV是德国LaVision公司独有的能够测量获得高分辨率全体积3分量速度矢量场的系统。本篇介绍了先进的运动追踪增强粒子重构算法MTE-MART的原理和应用。采用这种算法，在相同的硬件配置下，可以处理更高浓度的粒子场，得到空间分辨率更高的速度矢量场。

采用LaVision公司先进的2D和3D数字图像相关技术可以对材料的形变，裂纹，和缺陷进行非接触全场测量

采用LaVision公司独特研发的抑制像素锁定偏差滤光片可以有效降低粒子成像测速实验中的本底偏差。同时还发展了一种降低像素锁定偏差的后处理滤波器。

利用德国LaVision公司的LIF分析软件平台DaVis对一种利用Taylor-Dean流体的微型混合器进行了纵横比和流动状态对混合效果的影响的研究。

采用LaVision公司的FlameMaster系统。测量了火焰对象的2D平面激光诱导荧光信号。并依据结果估算了3D火焰表面密度和全局燃料消耗速率。

美国著名科研单位，圣地亚国家实验室采用LaVision公司的平面激光诱导荧光测试系统（PLIF）对本生灯的火焰进行了OH和甲醛自由基的空间分布的同时测量。激光源采用美国光谱物理公司的Pro 290型大能量Nd:YAG激光器。紫外355nm输出能量达到500毫焦。采用透镜耦合的图像增强器IRO测量微弱的荧光信号。

5台高速相机从5个视角观测拍摄火焰中自由基CH的平面图像。通过空间重构，获得CH浓度的体视3D图像。

采用LaVision公司的PIV系统。激光器能量为双脉冲400毫焦。对7马赫高超音速风洞中的15度-45度双斜面流场进行了测量。获得了流场中激波的空间分布的详细信息。

Liquid flows incorporating small-size bubbles play a vital role in many industrial applications. In this work, an experimental investigation is conducted on bubble formation during gas injection from a microtube into the channel of a downward liquid cross flow. The tip of the air injector has been located at the wall
wall orifice and also at several locations from the wall to channel centerline
nozzle injection. The size, shape, and velocity of the bubbles along with liquid velocity field are measured using a shadow-particle image velocimetry/particle tracking velocimetry system. The process of bubble formation for the wall orifice and the nozzle injection configurations is physically explained. The effect of variation in water and air flow rates on the observed phenomena is also investigated by considering water average velocities of 0.46, 0.65, and 0.83 m/s and also air average velocities of 1.32, 1.97, 2.63, and 3.29 m/s. It was observed that shifting the air injector tip toward the center of the channel resulted in the coalescence of some of the preliminary bubbles and the formation of larger bubbles termed secondary and multiple bubbles. Increase in air flow rate and reduction in water flow rate also intensify the rate of bubble coalescence. A correlation-based model is also suggested to overcome the shortcoming of the available models in the literature which are developed to only estimate the size of the preliminary bubbles. The model predicts the percent of the preliminary, secondary, and multiple bubbles along with the average size of secondary and multiple bubbles as a function of nozzle position within a cross flow.

The wake behind a simpli¯ed model of a generic aircraft (the SWIM model) is measured in the Low Speed Low turbulence wind tunnel (LSL) at Delft University of Technology. Two measurement techniques have been used in order to qualitatively and quantitatively measure the wake, i.e. stereoscopic particle image velocimetry (Stereo PIV) and a 5 hole probe (5HP). Furthermore balance measurements have been carried out over a range of con¯gurations for later comparison purposes. The goal of the wake measurements is to give a comparison between the two measurement techniques. The 5HP measurements are processed using a windows based program called Pressure Field Visualisation. This program calculates vector ¯elds from the input pressure data and has several exporting options. The Stereo PIV measurements are correlated using DaVis 7.3 using a window size of 16 x 16 pixels with 50% overlap.

We report on spatially resolved simultaneous measurements of temperature and majority species concentrations along a line segment in a premixed laminar H2-air flame. The results are obtained from Raman and Rayleigh scattering by using a narrow-band KrF excimer laser and a spectrally and spatially resolving detector system that consists of a high-throughput spectrometer and a gated, intensified, two-dimensional CCD camera. The data presented here are integrated over 100 laser shots. Absolute density profiles of N2, 02, H20, and H2, as well as temperature profiles at various heights through the flame, are presented. A discussion of the required calibration procedures and a summary of the necessary spectroscopic background are also included in this paper.

Microscopic particle image velocimetry (microPIV) experiments were performed on a polydimethylsiloxane (PDMS) microchannel with a cross-section measuring 320 lm · 330 lm for Reynolds numbers between 272 and 2853. Care was taken to ensure that the seed particle density was great enough that accurate instantaneous velocity vector fields could be obtained for all the Reynolds numbers investigated. Velocity fluctuations were calculated from ensembles of microPIV velocity fields. The hu0i/umax fluctuation showed an increase at Re = 1535 and a further increase as Reynolds numbers were increased, suggesting that transition to turbulence began near Re = 1535, a Reynolds number lower than predicted by classical theory. The hu0i/umax data also suggest the flow was fullydeveloped at a Reynolds number between 2630 and 2853, also lower than classical results. This finding was confirmed in plots of the mean velocity profile. For the fully developed flow, the measured hu0 i/umax fluctuation agreed well with classical results for turbulent duct flow, but the hv0 i/umax fluctuation was 25–40% lower than turbulent duct flow results. Finally, spatial correlations of velocity fluctuations were calculated to lend some insights into the characteristics of the large-scale turbulent structures observed in the turbulent microchannel flow.

Stability of the Si-H bonds on the hydrogen-terminated Si(111) surface has been investigated by sum frequency generation (SFG) spectroscopy in air at room temperature. The SFG observation showed that the Si(111) surface is terminated by a monolayer of monohydride (Si-H) after etching in a concertrated ammonium fluoride (NH4F) solution. The number of Si-H bonds decreased with laser irradiation time and the abstraction rate of hydrogen atoms on Si increased with the increase of input energy of "visible" light. The Si-H bond under irradiation at 1064nm light was more stable than that at 532nm light with a given intensity. A small amount of water in air severely lowered the stability of Si-H bond because of a photoelectrochemical recation under laser irradiation.

用PIV方法实验研究了5.5米宽，13.5米长水槽内浅表湍流，剪切流动中大尺度漩涡结构的产生和消失机理。

METHER MPC-5V600L、MPC5V416L系列智能冰箱主要用于医院检验科,满足诊断试剂智能存取管理;智能硬件操作简单、方便,不改变医护人员正常取用工作习惯。应用RFID、AI视觉等物联网技术的先进物联网智能设备,实现补货提醒,效期预警、自盘复盘等功能,可单机或以工作站方式运行,还可与第三方公司SPD配合使用,按照不同的应用场景自由组合成综合工作站使用。

　摘　要: 文章介绍了电子鼻的定义、 系统组成和工作原理,重点阐述了气敏传感器、 信号与处理、模式识别等关键技术的发展现状;详细介绍了它在食品工业、 精细化工、 医疗诊断、 环境监测、 公安与海关、 火星生命探索等方面的应用实例; 后展望了其未来发展趋势。

粒度测试的基本知识和基本方法概述-基本知识。本文从应用角度出发，提出了大家关心的一些粒度测试方面的基本问题，并对这些问题进行了解答。同时介绍了目前常用的几种粒度测试方法的原理、应用情况以及它们各自的优缺点，并在此基础上对粒度测试工作的几个实际问题进行了探讨

目前，微波消解是分析化学领域中为元素测定制备样品的标准方法之一。因为样品只有在少数情况下才会有相同的反应行为，所以，为了安全起见，有必要进行压力和温度等反应参数的监测。

FHT 6020 区域监测系统，可连接高压电离室和FH 40 G 系列等多种探测器，其优异的性能适合和满足任何辐射防护测量方案的需要。广泛应用于工业生产部门( 如石油化工、辐照企业及其他放射源使用单位)、核研究实验室、安全保卫和反恐等多种领域( 如监测潜在的放射性危险或特殊的核材料)。可根据需要设计不同监测方案，系统具有高度的可靠性和稳定性，适合连续监测，可长年工作。

机器人一般分为服务类机器人和工业机器人，服务类机器人多指用来服务人类生活需求的机器人，而工业机器人一般是用于生产需求的。本文中的机器人指工业机器人，虽然形态不同外貌各异，却都是实现实验室自动化的非常重要的工具。通常情况我们会用自由度/关节来对机器人进行标记，类同人类的手臂一样，自由度/关节越多，灵活度越好。而在国内实验室中，我们也时常可以看到机器人的身影。在科学仪器领域，也有多家企业推出了不同功能的机器人，我们将举例介绍并进行简要分析。

粉状活性炭以优质木炭为原料，经特殊生产工艺精制而成，有物理法、化学法两种。经水蒸气活化后，精制处理，粉碎而成。外观通常为黑色粉末状，在一般溶液下均不溶解，无臭无味，具有表面积大吸附力强、纯度高、滤速快、质量稳定，具有絮凝效应和助滤效应等特点。广泛适用于食品、医药、味精化工等产品的脱色、除杂精制，也可以用于水的净化处理。为检测粉状活性炭中的多种重金属元素含量，选择微波消解对其进行前处理，探索最适合的消解参数，该方法还有回收率高、空白低等特点，有利于后续对多种无机元素的快速准确测定。