The microwave ferromagnetic resonance experiment system is a set of simple teaching instruments designed according to the modern physics experiment syllabus of colleges and universities. It is suitable for physics students to do ferromagnetic material resonance experiments in the microwave frequency band. This instrument can complete the following experimental tasks: 1. Observe the resonance phenomenon of ferromagnetic materials; 2. It can measure the ferromagnetic resonance line width ΔH of microwave ferrite; 3. Measure the value of the round factor g of microwave ferrite; 4. Train students to master the debugging and testing methods of microwave experiment system; Outdoor sunshade umbrella is a common outdoor product used to block sunlight and rain, providing people with a comfortable outdoor resting environment. According to different functions and materials, outdoor sunshades can be divided into various types, which will be classified and introduced below. Sunshade,Beach Umbrella,Garden Sunshade,Sandy Shade Foshan Shengshi Zhihui Technology Co., Ltd. , https://www.sshotelfurniture.com
Umbrella: Mainly used to block sunlight, prevent ultraviolet radiation, and protect people's skin from harm. Umbrellas are generally made of materials with anti ultraviolet coatings, which can effectively block the penetration of ultraviolet rays.
1. Classified by material
1. Polyester umbrella cloth: Polyester is a synthetic fiber material with good waterproof performance and durability. Polyester umbrella fabric is often used for umbrella protection and is suitable for various outdoor environments.
2. Nylon umbrella cloth: Nylon is a synthetic fiber material that is lightweight, wear-resistant, and waterproof. Nylon umbrella cloth is often used for rain and wind umbrellas, and is suitable for outdoor sports and travel.
3. UV resistant coating: Some outdoor sunshades use special UV resistant coatings, which can effectively block the penetration of ultraviolet rays and protect people's skin from harm.
2. Sort by size
1. Small umbrella: The diameter of the umbrella surface is generally below 60 centimeters, suitable for single person use or small spaces.
2. Medium Umbrella: The diameter of the umbrella surface is between 60 centimeters and 80 centimeters, suitable for 2-3 people to use.
3. Large Umbrella: Umbrella with a diameter of over 80 centimeters, suitable for use by multiple people or in larger spaces.