Application of hydrogen gas sensor in industrial control field
At present, in the field of industrial control, the use of hydrogen gas sensor to monitor hydrogen concentration has a long history. As a clean energy source, hydrogen sensors are also widely used in the automotive industry. Especially in hydrogen fuel cell vehicles. In this field, there have been many explosion accidents at hydrogen refueling stations recently. These accidents have also drawn attention to the safety monitoring of hydrogen energy vehicles.
The hydrogen gas sensor is a conversion device that can measure the available electrical signal by converting the hydrogen concentration. The key to this application is that the monitoring of hydrogen must be based on the premise and guarantee that no explosion will occur. After all, hydrogen concentrations are measured below the flammable range. Supervision and safety of the production process are very important.
Introduction to the role of hydrogen sensor
Early hydrogen sensing and detection methods were mainly based on mass spectrometers and gas chromatographs. Among them, mass spectrometer monitoring is by measuring its offset in the magnetic field. In recent years, with the emergence and development of nanomaterials and thin-film hydrogen sensors. This detection method is gradually replaced by hydrogen sensors.
Hydrogen sensors have many advantages, including low cost, portability, fast response, and high integration. The detection methods of hydrogen sensors are mainly based on changes in electrical characteristics (such as resistance, conductivity, voltage, etc.), temperature, optical and mechanical properties of sensor active elements. The hydrogen sensor is exactly one that can make these changes. Ideal for converting into electrical signals that can be received.
Fixed gas detector, stable performance, sensitive and reliable. With high-precision liquid crystal display, explosion-proof housing, diffusion type or pump suction type. The H2 detector has the characteristics of flexible use and simple operation. The H2 detector is used in various gas leakage places, such as: city gas, petroleum, chemical, pharmaceutical, steel, special industrial plants and other fields. The explosion-proof level of the H2 detector is CT6.