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(Industrial Hose Peristaltic Pump) Process Chromatography Introduction

2021-12-08
Simply from the perspective of experimental measurement, visualization can be understood in a broad sense: it can include the use of some physical or chemical means to directly obtain the spatial image of the physical quantity, such as the flow image directly obtained by photography, using infrared imaging method to directly obtain the temperature of the object surface, etc. The other is through a variety of sensors, first measure the size of the physical quantity value at each point in space, and then from these data, using visualization technology to reconstruct the physical quantity in space image. The former method is relatively easy from the perspective of data processing, and its difficulties mainly focus on how to obtain the image information of material and how to collect this information, which is directly related to the external conditions that can be obtained in the experiment. The latter is much more flexible, can be measured from any instrument data after a certain calculation, give the spatial distribution of physical quantities. For this reason, the latter has become the focus of modern visualization research and is often referred to as the latter.

Using point measurement equipment, structured data fields can be obtained directly, such as PDA. Surface measurement equipment, the measurement results can also be easily converted into the required form of data for visualization, such as PIV. Measurement results for these instruments in visualization, pretreatment is not much difficulty in my work, but in science experiment is a kind of measuring equipment, its measurement is a line of data, such as said before the diffraction particle size analyzer, the concentration of the radiation monitoring, resistance, capacitance, and inductance) concentration measuring instrument and so on, How to convert the data on the projection line measured by such instruments into the spatial data required for visual processing is a difficult problem for researchers, and also a cutting-edge topic in modern multiphase flow measurement technology.

X-ray disadvantages:

Have a certain ability to ray transmission through space, if the space is contained in different absorption properties of the material, the transmission changes the intensity of the beam space material is contained in the information This principle has been widely used in scientific research industry generated and medicine and other fields, this work in TCM X-ray is well known Now let's take this as an example to start our discussion. The degree of X-ray weakening is different when it passes through materials with different densities. It is widely used in medicine, but it has great disadvantages, which are mainly shown as follows :1. The low density with thick image overlap may produce the same attenuation as the thin high-density material. 2. The spatial resolution of X-ray radiation direction is very low, and depth cannot be discriminated.

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