What materials can be used to make pressure sensor sensitive body?

Materials suitable for making pressure sensor sensors include metals, metal oxides, semiconductor materials and polymer materials. The details are as follows:

Metal materials: Metal materials such as titanium and stainless steel are widely used in traditional pressure sensors because of their good mechanical properties and stability. These materials can bear large pressure without deformation, and are suitable for measurement in high pressure environment.

Metal oxides：Metal oxides, such as zinc oxide, have good piezoelectric properties, and high-quality zinc oxide films can be obtained by manufacturing powders or nanowires, which can be used to manufacture high-sensitivity pressure sensors.

Semiconductor materials: Semiconductor materials, such as silicon, etc., are widely used in various types of pressure sensors because of their excellent electronic characteristics and cost-effective processing technology. In particular, polysilicon not only has good piezoresistive effect, but also can be made into micro-physical and integrated sensor elements through micromachining technology.

Polymer materials: Polymer materials, such as polypyrrole (PPY) hydrogel and polyurethane sponge coated with reduced graphene oxide, are widely used in the field of flexible pressure sensors because of their good flexibility, low cost and easy processing. These materials usually have a three-dimensional porous structure and can be deformed when subjected to external pressure, thus changing the resistance value or other physical quantities and realizing pressure measurement.

Two-dimensional materials: Two-dimensional materials, such as graphene, show great potential in constructing highly sensitive pressure sensors because of their unique physical and chemical properties. These materials not only have excellent electrical and mechanical properties. It also has Kai Hao San fireware and machinable parts, which can meet the requirements of flexible electronics products for sensors.

To sum up, there are various materials suitable for making pressure sensor sensitive body, and the advantages and advantages of Zhongtai field are comprehensively considered according to specific application scenarios and performance requirements when selecting sensitive body materials.