The application of magnesium oxide in smart sensors is mainly reflected in the following aspects:
Gas sensor: Magnesium hydroxide (Mg(OH)₂) has selective adsorption capacity for certain gases, so it can be used to manufacture gas sensors. For example, MgO-based sensors can be used to detect harmful gases in the air, such as carbon monoxide, nitrogen oxides, etc., and play an important role in environmental monitoring and industrial production safety.
Humidity sensor: Magnesium hydroxide has good hygroscopicity and can accurately sense changes in ambient humidity, so it can be used to manufacture humidity sensors. Such sensors are widely used in agriculture, meteorology, construction and other fields, helping people to better control environmental humidity.
Biosensor: Magnesium hydroxide nanoparticles have a large specific surface area and good biocompatibility, and can be used to manufacture biosensors, such as glucose sensors, DNA sensors, etc. These sensors have important applications in medical diagnosis, biotechnology and other fields, and can achieve high-sensitivity detection of biological molecules.
Optical sensor: Magnesium oxide plays an irreplaceable role in optical equipment due to its unique optical properties. In photoelectric sensors, the good insulation and thermal conductivity of magnesium oxide enable the sensor to respond to light signals more sensitively, improving the accuracy and stability of measurement. In addition, magnesium oxide is also used to manufacture ultraviolet light detectors for monitoring the intensity of ultraviolet radiation, and has potential applications in fields such as optical communications and spectral analysis.
Temperature sensor: The thermal stability and thermal conductivity of magnesium hydroxide make it potential for application in the development of temperature sensors. By filling magnesium hydroxide powder, the thermal conductivity of the temperature sensor can be significantly improved, so that it can still work stably in a high temperature environment.
Pressure sensor and magnetic field sensor: The piezoelectric effect and magnetism of magnesium hydroxide also make it valuable for application in the development of pressure sensors and magnetic field sensors. For example, magnesium hydroxide can be used to manufacture sensors for measuring high pressure and sensors for measuring magnetic field strength.
In summary, the application of magnesium oxide and its derivatives in intelligent sensor technology shows broad prospects. With the continuous advancement of science and technology and the expansion of applications, they are expected to play a more important role in the future and provide strong support for the development of intelligent sensing technology.