If it is used by elementary and middle school students, which microscope should I buy?

The first is to be resistant to falling and not easy to break, and the second is to be cheap and not expensive.

Children use microscopes mainly to observe biological specimens, and ordinary biological microscopes can be satisfied, and there are many options on the Internet. I don't know what grade your child is in, if you are just starting to get in touch with the microscope, you can buy a high-powered microscope first, which can see most of the cells and microorganisms, and the operation is simple and does not take up space. If students above high school generally have a more in-depth study of the microscopic world, they can choose a professional microscope imported from abroad (not unpatriotic, there is indeed a gap in clarity).

There are two main types of student microscopes: biological microscopes and stereo microscopes.

1. The magnification of biological microscope is general: 40x, 100x, 400x, 1000x, the highest configuration can be up to 2000x (20x eyepiece and 100x objective).

Student microscopes do not need to be so high as 1000x and 2000x. 400x is enough, 10x for the eyepiece, 4x 10x 40x for the objective. When the magnification reaches 1000 times, you need cedar oil when you want to use a 100x objective, and you need to clean it, which has high requirements for sample preparation, and children can't use it, and there is no need to use it.

Interest cultivation, buy electric light source or reflector type can be.

Slightly older students, junior high school students buy microscopes best to buy monocular with reflectors, generally junior high school teaching is used in this way, if you buy high-end or other types, many parts and structures are different, not to the textbook, easy to confuse students. For monocular biological microscopes, it is best to configure a moving ruler to facilitate the movement of the sample.

The recommended configuration of Xingming optical monocular biological microscope: eyepiece 10x, objective lens 4x 10x 40x, with moving ruler, reflector, five-hole light bar. This configuration is suitable for elementary and junior high school students.

Elementary school students can buy electric light source form, plugged in the field of vision is still convenient to see, but it is not recommended for junior high school students.

2. Stereo microscopes (stereo microscopes, dissecting mirrors, solid microscopes) have two types: fixed magnification and continuous zoom. The multiplier is generally about 10x-50x.

Stereo microscopes are not used for teaching purposes. The stereo microscope has a small multiplier and a strong sense of stereoscopism, which is very suitable for children's interest cultivation, and the sample does not need to be prepared, and the diameter of the specimen is obtained and observed under the microscope.

A microscope is a collection of knowledge, and students can buy a microscope not only to observe biological specimens, but also to learn a lot about physics. If you choose a high-end micron-level smart microscope, you can learn more electronic and mechanical knowledge about the functions that may involve wifi transmission, autofocus, remote control, etc., which is very helpful to enhance interest and increase knowledge.

If you have a personal need or a hobby, you can buy it, and now ordinary optical microscopes are not expensive, just a few thousand dollars, and electron microscopes are more expensive, and if you don't need to be fine, you can just use optical microscopes.

Students can buy it, they can learn a lot of things, and they support you to buy it!

Depending on personal interest, it's not expensive, you can buy one for a few hundred yuan.

There's no need to use it at school if you want to.

Student biological microscope is generally more monocular, that is, one eye, generally the eyepiece is 10 times or 16 times, and there are 3 or 4 objective lenses, which are 4 times 10 times 40 times 100 times, and the total multiple is the eyepiece by the objective. Here's a little advice, I'd rather spend a hundred dollars more than buy Taipower.

Light source, Jiangxi there are mirrors reflective, although a lot of portable, but the effect of lighting is not good, especially when high power observation, the general reference price of monocular is about 600 yuan, and the binocular is generally about 900 yuan.

Here's how to use the microscope:

1. Hold the mirror arm with one hand and hold the lens holder with the other hand, and place the microscope on the flat table facing the light;

2. Turn the converter to turn the low-magnification objective under the lens barrel;

3. Adjust the reflector under the stage, and when you look down from the eyepiece, you can see a bright aperture;

4. Adjust the coarse collimation spiral to lift the lens barrel so that the low-magnification objective is about 2-3 cm away from the stage. Place the slide of the specimen you want to observe on the stage and clamp it with a tablet clamp to make the specimen happen to be at the ** of the light hole on the stage;

5. Adjust the quasifocal spiral and lower the lens barrel so that the low-magnification objective lens is just above the glass slide;

6. Look down from the eyepiece and adjust.