Why does the delicious yogurt always have the same taste? Why does the medical ointment always have the same effect? All this is due to their "drop" size. The same size of the liquid drops on the taste of yogurt, the viscosity of medical ointment, etc. have a decisive impact. Therefore, the manufacturers of these products also pay great attention to the size of the particles in the liquid medium.

对于生产厂家来讲，流程设备生产过程中的产品监控是非常重要的。而流程设备的生产过程监控也为生产厂商提供了下列优势：可以及时采集实时检测数据、可以将实时检测数据及时反馈给流程设备的主控系统。这是对不同生产批次的产品质量进行比较的最佳解决方案，同时这种实时检测还可以减少流程设备生产中的废品，降低设备的能源消耗，延长设备的使用寿命。在粉质原材料的流程生产工艺中，质量监控的方法应用已久；在液体介质的流程生产工艺中，例如在悬浮物液体产品、乳化液体产品和泥浆产品中，也有在线的LPS检测仪器进行实时的液滴颗粒大小的监控。

It is very important for the manufacturer to monitor the product in the process of production process. And process equipment production process monitoring also provides the following advantages: the real-time detection data can be timely collected, real-time detection data can be timely feedback to the main control system of process equipment. This is compared with the optimal solutions of different batches of production and products quality, also the real-time detection can also reduce the waste in the production process equipment, reduce energy consumption and prolong the service life of the equipment. In the silty raw materials in the production process, quality control method application has long; in the liquid medium of the production process, LPS, for example in the suspension liquid products, emulsification liquid products and mud products, online testing instruments for real-time liquid droplets monitoring.

在液体介质颗粒的在线检测中，被检测的原材料连续流经检测区域。被检测的固体颗粒或者液滴会产生一定的散射条纹和衍射条纹。

In the on-line detection of the liquid medium particles, the raw material is continuously flowing through the detection area. The detected solid particles or droplets will produce a certain scattering fringe and diffraction fringe.

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激光衍射的应用

Application of laser diffraction

LPS液滴大小检测方法的工作原理是激光衍射。被检测的原材料连续地流经检测区域。被检测的固体颗粒或者液滴产生一定的散射条纹和衍射条纹。检测仪器对这些条纹进行检测分析，并据此计算出颗粒或者液滴的大小。

The working principle of LPS droplet size detection method is laser diffraction. The tested raw material flows continuously through the detection area. The solid particles or droplets are detected to produce a certain scattering fringe and diffraction fringe. Detection instrument for the detection and analysis of these stripes, and then calculate the size of particles or droplets.

当被检测介质中的颗粒浓度较高时，可以采用多散射方法进行检测，从而减少对平均颗粒大小检测的影响。介质中颗粒浓度的影响由检测系统中的软件自动校正。因此，该系统可以实现流程设备的现场检测，可以检测10000ppm浓度的介质颗粒。在许多流程工艺中，颗粒大小的均匀程度是一个重要的流程工艺控制参数。因此，这一检测系统的实时检测值与时间有着密切的关系，表示了颗粒随时间变化的函数。系统使用的检测控制软件可以按日期对这些数据进行分类存储，向更高级的控制系统传送数据。

When the detected particle concentration is high in the medium, can use multiple scattering methods for detection, thus reducing the impact on the average particle size detection. The effect of particle concentration in the medium of the automatic correction by detecting system software. Therefore, this system can realize the on-site detection of process equipment, can detect the 10000ppm concentration of the medium particles. In many processes, the degree of uniformity of particle size is an important process parameter control. Therefore, the real-time detection value of detection system has a close relationship with the time, said the function of particles change with time. The system uses the software of the control can be classified by date storage of these data, transmitted to the control system more advanced data.

在被检测颗粒浓度达到10000ppm时，该仪器的检测区也可以毫无问题地进行检测，激光衍射仪可以直接安装在均化稀释器或者流程设备的某个部件上。如果被检测的乳化液或者泥浆类介质的粘稠度较大，则需要一定的处理技巧，以保证获得准确的检测结果。

At the concentration of 10000ppm particles is detected, the detection area of the instrument can also be no problem detection, laser diffraction can be directly installed in a component are diluted or on process equipment. If the detected viscous emulsion or slurry medium is larger, it needs to deal with certain skills, in order to get accurate results.

稀释方案

Dilute solution

当被测介质粘稠度较大时，在检测前首先要对它们进行稀释。而一个高效的稀释系统应该有可重复的稀释性，保证每次稀释的结果是相同的；并且所需的维护保养也应当尽可能地少。为实现这一目的，可采取以下两种方案：

When the measured medium viscosity is large, in the detection of them before the first dilution. A high dilution system should be diluted repeatable, to ensure that every time the result of dilution is the same; and the required maintenance should be as few as possible. For this purpose, you can take the following two schemes:

－如果从流程工艺的角度来看，需要连续的检测，而且稀释的倍数小于1:1000，则可以使用均化稀释器。它将泵送、稀释和输出等功能集于一身。

If from the process perspective, the need for continuous detection, and dilution multiples of less than 1:1000, you can use all of dilutors. It will be pumping, dilution and output functions in a body.

－如果介质的浓度过高或者流程设备的工作压力过高，则不可能采用连续式取样。此时需要采用另一种解决方案：使用旋转式取样器取样。目的是从生产流程中间断取出检测样品。在一个连续的搅拌混合容器中，这些检测样品被稀释，加入搅拌稀释剂，最后对其进行检测。如果还需要进一步的稀释，可再进行均化稀释。

If the concentration is too high or medium process equipment, work pressure is too high, it is not possible to use the continuous sampling. The need to adopt another solution: the use of rotary type sampler. The purpose is from the production process take out samples. In a continuous mixing container, these samples were diluted, mixed diluent, finally to detect. If you need further dilution, can be used for homogenizing dilution.

Insitec LPS液体介质颗粒检测仪连续地、实时地对流程设备生产过程中的产品颗粒和液滴大小进行检测，例如对悬浮物液体产品、乳化液体产品和泥浆类产品中的颗粒、液滴大小进行检测。

Insitec LPS liquid medium particle detector continuously and real-time of process equipment in the production process of the product particles and droplets size were detected, such as the particles in the suspension liquid products, emulsification liquid products and mud products, droplet size were detected.

可靠的重复精度

Repeat precision

在上述取样方式中，使用者所担心的是：每次取样是否相同、每次取样的重复精度如何。因此，稀释系统必须能够证明每次颗粒检测的数据是稳定的。在对稀释泥浆进行的多次检测试验也证明：稀释程度对颗粒大小的检测值没有影响，这也就意味着，稀释过程可以达到很高的重复精度。

In the sampling mode, the user is worried about whether to repeat the same precision, each sampling time of sampling to. Therefore, the system must be able to prove that each particle dilution test data is stable. In the times of dilution of mud detection experiments also prove that the degree of dilution to detect particle size have no effect, this also means that the dilution process can achieve very high repeat accuracy.

液体介质颗粒检测仪是针对连续的实时检测而设计的。该系统的每一个部件都可以按照流程设备的实际进行配置。

The liquid medium particle detector is designed for real-time detection of continuous. Each part of the system can be configured according to the actual process of equipment.

模块式结构提高仪器制造的灵活性

Modular structure to improve the flexibility of manufacturing equipment

Malvern LPS液体介质颗粒检测仪是一种连续、在线的液体颗粒检测仪器。它的每一个零部件：取样器、一级稀释器、均化稀释器、检测器和控制软件等等，都可以根据具体的生产流程进行单独的配置。

Tester Malvern LPS liquid medium particles is a liquid particle continuous online detection instrument. Every parts of it: sampler, a diluter, dilution device, a detector and a control software and so on, can according to the specific production process to separate configuration.

LPS液体介质颗粒检测仪的取样器每次从流程设备管道中取出长度2.5mm的介质作为检测样本。在取样过程中不会中断液体介质的流动，从而可以避免管道流通的堵塞。必要时，例如流程设备管道中的压力很高时，可以利用专用

Tester LPS liquid medium particle sampler every time out from the pipe length of 2.5mm process equipment in the medium as testing samples. The liquid medium flow will not be interrupted during sampling, which can avoid the blockage of the pipe flow. When necessary, such as pipeline process equipment of high pressure, can use a special