Tips for choosing a metallographic microscope
1. Imported metallographic microscopes: The characteristics of these microscopes are: the optical system adopts infinite distance, which can provide observation methods such as bright field, dark field, transmission, reflection, DIC, etc. The lens resolution is high, the service life is long, but the price is high.
2. Domestic upright metallographic microscope: This microscope is suitable for general opaque objects, with magnification requirements of 100X or more and 1000X or less for customers. It only has a bright field and low lens resolution, but it has a high cost-effectiveness.
3. Domestic inverted metallographic microscope: The characteristics of this microscope are basically the same as those of domestic upright microscopes, but the lens is located below, the stage is larger, and there is no requirement for working distance. It is more suitable for customers with lower prices but larger sample sizes. besides,
Metallographic microscope is a high-value and high-precision optical instrument, and its core part is the optical imaging system. The quality of the product is related to the imaging effect and the accuracy of analysis and judgment. When choosing a metallographic microscope, pay attention to the following two points:
In terms of imaging quality, four basic conditions must be met simultaneously. Metallographic microscope uses optical imaging principles to obtain images of metal microstructures (i.e. metallographic patterns), and then conducts qualitative and quantitative analysis of the metallographic patterns. The quality of imaging is the primary indicator for measuring the quality of metallographic microscopes. To obtain clear images, four basic conditions must be met: high contrast, high brightness, good color reproduction, and high resolution.
The first three conditions are easily overlooked by users when choosing, and users should not blindly pursue resolution while neglecting the other three aspects. Only in this way can they achieve value for money and make the best use of resources.
2. In use, the continuous stability of the mechanical properties of the metallographic microscope should be considered. In addition to imaging quality, consideration should also be given to the long-term stable and optimal working condition of the instrument under normal use, which we refer to as sustained mechanical performance stability.
Metallographic microscope is a high-value and high-precision optical instrument with a service life of over 30 years. When purchasing, users also need to consider the materials, manufacturing accuracy, scientific and rational mechanical design selected by the manufacturer in manufacturing. The above two necessary conditions have put forward clearer requirements for manufacturers in manufacturing from a practical perspective, and users should also follow the above principles to choose economically applicable metallographic microscopes.
