Domestic pressure sensors have low market competitiveness and companies should break the technical barriers

At present, there is a certain gap between the level of sensor technology in the country as a whole and the international level. Taking the pressure sensor as an example, there is not much difference between the domestic industry's theoretical level and the international level, but from the perspective of basic technology, including materials technology, manufacturing equipment, testing technology and reliability research, there is still a certain gap with the international level.

China's pressure sensor market is mainly in the field of industrial automation and automotive. In the field of industrial control, most of China's current use of diffusion silicon pressure sensor, strain gauge pressure sensor and sputtering film pressure sensor, the domestic manufacturers a wide range of production is diffusion silicon pressure sensor.

In foreign countries, piezoresistive ceramic pressure sensors are gradually replacing diffusion silicon pressure sensors with their high reliability, corrosion resistance, excellent linearity accuracy and low cost, which will also be an inevitable trend of development.

For domestic pressure sensor production lines, to achieve the foreign level, more research and improvement are needed in production equipment, production environment, manufacturing processes, and basic technologies, to speed up the upgrading of product technology and develop dedicated solutions. A domestic sensor manufacturer said that the company had attempted to manufacture its own integrated ceramic ring and high-pressure resistance coefficient electronic paste that was independently formulated and developed in China. However, the performance of the produced product could not always meet the requirements. Finally, the company could only commission processing abroad. From the equipment point of view, large time drift and temperature drift are the biggest problems in domestic production of pressure sensors.

On the whole, existing pressure sensor manufacturers in China are still in a low-level competition situation. The technical quality, production capacity, and production scale cannot keep up with international standards. The price war is very common, causing a decline in product quality. It can be seen that the optimization of product quality, technology, and cost is an important factor for domestic companies in a favorable position in the future competition.

In the face of fierce market competition, domestic manufacturers should reduce production costs through various means, control fixed expenditures in operations, increase investment in independent research and development and technological transformation, and increase the level of comprehensive competitiveness.