Microscopios tienen se han convertido el más común analítico instrumentos en laboratorios y R&D salas, pero para profesionales que a menudo uso microscopios, cómo fácilmente elegir a microscopio que cumple su científico investigación necesidades and es rentable es es a muy dolor de cabeza. en el pasado, cuando mucho usuarios consultados us, most of them could only be regarded as simple microscope inquiry, but they didn't know much about the purchase knowledge of microscopios. Resumir algunos de los más comunes preguntas antes comprar a microscopio, esperar to ayudar usted en su selección.
Pregunta 1: Saber qué tipo de microscopio es adecuado para la muestra tu quiere para probar antes comprar?
Microscopes can be divided according to different functions according to the observation samples: generally there are metallographic microscopes, polarizing microscopes, stereo microscopes, biological microscopes, fluorescence microscopes, etc. Different functional microscopes are used in different ways. Polarizing microscopes are mainly used in the detection of anisotropic non-metallic materials such as geological ores. Metallographic microscopes are mainly used in the observation, identification and analysis of internal structures of various opaque materials such as metals. It is suitable for factories, mines, enterprises, institutions of higher learning and scientific research departments. Equipped with a camera device, the instrument can capture metallographic atlases, measure and analyze the atlases, and edit, output, store, and manage images. Stereo microscopes are suitable for micron-level actual effect analysis, fracture detection, inspection of electronic industry production lines, verification of printed circuit boards, verification of soldering defects (printing misalignment, edge collapse, etc.) in printed circuit assemblies, verification of single-board PCs, And all areas where there is careful observation of the sample surface, equipped with measurement software to measure various data. Biological microscopes are mainly suitable for medical diagnosis, testing, teaching, and research in the medical and health fields, schools, and scientific research units. Therefore, before purchasing, you should figure out what the sample you want to observe is, so that the merchant can recommend you a suitable microscope.
Pregunta 2. Debería I comprar an vertical microscopio o an invertido microscopio?
The upright metallographic microscope forms a positive image during observation, which brings great convenience to the user's observation and identification. In addition to the analysis and identification of metal samples with a height of 20-30mm, it is in line with people's daily habits. , so it is more widely used in transparent, translucent or opaque substances. Observation objects larger than 3 microns and less than 20 microns, such as cermets, electronic chips, printed circuits, LCD substrates, films, fibers, granular objects, coatings and other material surface structures and traces, can have good imaging effects. In addition, the external camera system can be easily connected to the video screen and computer for real-time and static and dynamic image observation, storage, editing, printing, combined with various software to meet the needs of more professional metallography, measurement, and interactive teaching fields. Inverted metallographic microscope uses the method of optical plane imaging to identify and analyze the structure of various metals and alloys. It is an important tool for metallographic research in metallography. It can be widely used in factories or laboratories for casting quality and raw material inspection. , or the research and analysis of metallographic structure of materials after process treatment, so as to provide intuitive analysis results, it is the key equipment for quality identification and analysis of casting, smelting, and heat treatment in mining, metallurgy, manufacturing, and mechanical processing industries. In recent years, the microelectronics industry needs high-magnification planar microscopy to support chip production. Therefore, metallographic microscopes have been introduced into this field for promotion and use, and are being continuously improved to meet the special needs of the industry. Inverted metallurgical microscope, because the observation surface of the sample coincides with the surface of the workbench downwards, and the observation objective lens is located under the workbench to observe upwards. This observation form is not limited by the height of the sample. Beautiful and generous, the base of the inverted metallographic microscope has a large supporting area, the center of gravity is low, safe, stable and reliable, the eyepiece and the supporting surface are inclined at 45 degree , making observation comfortable.
The upright lens is on the stage, and the test block is placed on the stage facing up. at this time, the lens is on the top, the test block is on the top, and the lens observes the test surface from top to bottom.
Después de seleccionar un cierto tipo de microscopio de acuerdo a la muestra , usted puede básicamente referir a los arriba puntos cuando considerando si a elegir un vertical microscopio vertical o un invertido microscopio. en el mismo tiempo, usted debe también considerar su existente muestra preparación condiciones, existente preparación condiciones , invertido porque vertical microscopio relativo bajo.
Pregunta 3: Cómo mucho es tu presupuesto?
At present, the microscopes on the market are mainly divided into domestic and imported. Generally speaking, the price gap ranges from several times to more than ten times. You can decide whether to buy domestic or imported according to your existing budget. However, if your budget is relatively sufficient or you do not have a fixed budget, it is recommended that you purchase an imported microscope. Of course, the editor here does not deny that domestic microscopes have made great progress in recent years, but in terms of optical path design and mechanical stability, domestic microscopes are still far behind the quality of imported microscopes, and from the perspective of long-term investment Look, imported microscopes (the editor here refers to microscopes imported from abroad, except those produced by joint ventures) generally have a service life of about 60 years, while domestic or some joint venture brands have poor imaging quality within a few years after purchase. There are various problems such as clarity and instability, so it is not as cost-effective as a one-time permanent investment instead of repeated purchases. If you choose a domestic microscope, we will consider LW brand, low-end products for you: generally infinity, and the objective lens is flat field. High-end products: Generally, the objective lens is finite distance and achromatic.
