Application of Ultrasonic Spraying in Sensor Coating

Application of Ultrasonic Spraying in Sensor Coating – Cheersonic

In the wave of sensor technology upgrading towards miniaturization, high precision, and high stability, the quality of coating process directly determines the upper limit of sensor performance. Ultrasonic spraying machine, with its micrometer level atomization accuracy and uniform coating coverage ability, has become a core process equipment in the field of sensor manufacturing, widely used in the thin film preparation process of various sensors.

In the manufacturing of gas, biological, and environmental sensors, ultrasonic spraying machines are responsible for the key preparation task of nanoparticle thin film coatings. The core requirements of this type of sensor are fast response and high detection sensitivity, and the specific surface area of the nanoparticle coating directly affects the detection performance. Ultrasonic spraying technology atomizes nano particle slurry into tiny droplets with a diameter of 5-50 microns through high-frequency vibration, accurately adhering to the surface of sensor sensitive components, forming a thin film with uniform pores and strong adhesion. For example, in indoor formaldehyde sensors, the metal oxide nano coating prepared by it can shorten the detection response time to less than 10 seconds and lower the detection limit to 0.01mg/m ³, which is far superior to traditional spraying processes; In the field of biosensors, it can accurately control the coating thickness of antibody nanoparticles, ensuring that the activity retention rate of biomolecules is increased by more than 30%, providing reliable technical support for rapid pathogen detection.

Ultrasonic spraying machines exhibit unique advantages in the preparation of conductive oxides and mixed films for flexible or rigid microelectronic sensors. Flexible microelectronic sensors need to adapt to bending and folding usage scenarios, and the flexibility and conductivity stability of coatings are crucial. This device can prepare indium tin oxide (ITO) conductive thin films with a thickness deviation of less than 2% on flexible substrates such as polyimide by adjusting the atomization pressure and spraying speed, ensuring uniform surface resistance and avoiding coating cracking problems caused by traditional spraying. In rigid microelectronic sensors, it can achieve precise coating of mixed thin films of conductive oxides and insulating materials. By controlling the droplet deposition trajectory, it solves the problem of loose bonding between different material interfaces, improving the signal transmission efficiency of the sensor by 20%. It is suitable for the manufacturing of high-precision pressure sensors, temperature sensors and other products.

In the field of sensors used in harsh environments, ultrasonic spraying machines provide efficient solutions for the preparation of protective and catalytic thin film technology layers. This type of sensor needs to withstand extreme conditions such as high temperature, corrosion, and high humidity, and the compactness and weather resistance of the coating are the core indicators. The ceramic based protective film prepared by this technology can form a continuous and pore free protective layer on the surface of the sensor, extending the service life of the sensor from 3 months to over 1 year in a high temperature environment of 800 ℃; In industrial waste gas detection sensors, the catalytic thin film prepared can accurately control the distribution of catalyst particles, improve the catalytic conversion efficiency of harmful gases by 40%, and avoid performance degradation caused by catalyst agglomeration, ensuring stable operation of the sensor in high concentration corrosive gas environments.

Ultrasonic spraying machines, with their precise process control capabilities, are reshaping the industry standard for sensor coating preparation, providing solid guarantees for sensor performance upgrades in different scenarios, and promoting the deep application of sensing technology in fields such as environmental protection, medical care, and industrial control.

About Cheersonic

Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.

Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.

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