With the progress of science and technology, the development of the industry, the scope of application of film thickness instrument gradually expanded, while its use demand is also growing, film thickness instrument is a film thickness measurement instrument, in many industries have been important applications, in fact, there are many kinds of this instrument. Today, let's take a look at the types and selection methods of film thickness instruments:

Types of film thickness meter:

In fact, in the development of the industry, this instrument is mainly divided into three types, namely magnetic induction type, eddy current type, fluorescent X-ray line; The first type mainly uses magnetic induction away, so that the magnet passes through the probe through the non-ferromagnetic covering layer, and finally enters the ferromagnetic body in the instrument to determine the size of the magnetic flux that can be passed to achieve the purpose of testing. With the development of the industry, the error range in the use of this type is getting smaller and smaller, and the range is also increasing. Therefore, it is often used in the measurement of oil and gas formations.

Eddy current type is also the use of electromagnetic field, but it is in the form of electromagnetic field to form the size of the eddy current to determine the thickness of the test, the larger the eddy current in this form, the reflected impedance will also increase, which means the greater the thickness, so this instrument is usually used in vehicles, home appliances and other fields.

Fluorescent X-ray lines, which measure thickness by the particles emitted by X-rays, absorb energy and then become stable, are the latest product of technological development and are commonly used in a variety of industries.

How to choose the right film thickness meter:

In the process of the development of the industry, the demand for instruments is growing, but in order to meet the requirements of each field of use, the model of the instrument has also appeared a lot, of course, the emergence of so many models, also represents the different needs of each industry, the model used is different, so we need to determine the type they need when choosing, if you encounter problems when purchasing, You can also communicate with professional sales staff through the Internet in a timely manner.

Therefore, whether it is the type of film thickness instrument, or the choice of the right instrument, these need to master the relevant knowledge before the selection and use, such as in the purchase, pay attention to understand the market, pay attention to the development of the industry, select the instrument when you need to understand the parameters of the equipment, in the use of the need to master the corresponding use and maintenance methods.

Optical film thickness meters are widely used in various thin films, and a series of materials and products such as semiconductor liquid crystal displays are measured. General products we can take a ruler to measure, the accuracy requirements are not high. However, for products such as films, accuracy is related to the assembly and performance of the product, so it must be measured.