Functions Of Sensors

‌The main function of sensors is to sense and measure physical quantities, such as temperature, pressure, light intensity, sound, acceleration, displacement, etc., and convert them into electrical signals or other forms of measurable signals, thereby realizing quantitative perception of the physical world. ‌This function provides raw materials for subsequent data processing, analysis and decision-making. Sensors convert non-electrical information into electrical signals or other forms of information output through specific sensitive elements to meet the requirements of information transmission, processing, storage, display, recording and control. ‌

Sensors play an important role in various application scenarios. For example, temperature sensors use thermocouples or resistance changes to detect temperature; optical sensors use photoconductivity effect or photovoltaic effect to detect light intensity; pressure sensors measure pressure through piezoresistive effect; gas sensors use gas sensors to detect gas composition; magnetic sensors use Hall effect or magnetoresistance effect to detect magnetic field changes. These sensors are widely used in industrial automation, environmental monitoring, medical equipment, smart homes and other fields, greatly promoting the process of automation and intelligence.