The Difference Between Metallurgical Microscope and Optical Microscope
Microscopes help users observe life, but life contains many samples with different structures, such as birds, animals, soil, sand, and stones. Therefore, when observing different samples, we need to apply different tools. So, what is the difference between metallographic microscope and optical microscope?
Microscopes can generally be classified according to their applications and structures, including biological microscopes, polarizing microscopes, and metallographic microscopes. The metallographic microscope we refer to is actually a branch of the microscope, which is used to observe and study the metallographic structure of certain samples in the industrial field.
In fact, ultimately, metallographic microscopes belong to optical microscopes. Metallographic microscopes are essential accessories and functions added to optical microscopes for industrial research, such as bright and dark field observation, polarization observation, and differential interference observation. Metallographic microscopes are generally used as microscopes for metallographic testing.
The above is an introduction to the differences between metallographic microscopes and optical microscopes. In fact, there are no similarities or differences in the overall structural types of various microscopes. It is only necessary to modify the microscope appropriately according to different application requirements to meet the corresponding research needs. That's all.
What is the type III bacterial smear observed under a microscope
Although various types of microscopes can observe the various morphological structures of bacteria, ordinary optical microscopes are commonly used in laboratories Due to the small and transparent size of bacteria, as well as the large amount of water contained within living cells, their absorption and reflection of light are not significantly different from those in aqueous solutions When suspending bacteria in water droplets.
Inspection process
Drip a drop of distilled water onto a clean glass slide, perform aseptic operation using an inoculation ring, pick up a small amount of culture, place it in a water droplet on the glass slide, mix it with water to form a suspension and coat it into a thin layer with a diameter of about 1 centimeter. To avoid the formation of clusters due to excessive bacterial count, an additional drop of water can be added to one side of the glass slide. Take another ring from the already coated bacterial solution and dilute it into this water droplet to coat it into a thin layer. If the material is liquid culture or solid culture, wash off the prepared bacterial solution and directly coat it on the glass slide.
