1.Role of Ozone Sensor
Ozone sensor is a device that can detect the concentration of ozone in the air, and its function is to monitor the concentration of ozone in the air in the environment, as well as to detect other harmful gases in the air. In environmental protection and public health, ozone sensors are commonly used to detect the concentration of harmful gases in the air so that necessary measures can be taken in time to protect public health.
2.Principle of the Ozone Sensor
The principle of ozone sensors is based on electrochemical redox reactions. Sensors typically used to detect ozone utilize a sensor coated with tin dioxide (SnO2) on the bottom. When ozone comes into contact with zero-point oxygen molecules, they generate an electric current, the magnitude of which is a function of the ozone concentration. This current is called the redox current.
The Ozone Sensor works as follows:
①Ozone molecules in the air of the detection chamber are adsorbed onto the surface of the sensor.
②The cell generates an electric field that creates an electron channel between the ozone molecules adsorbed onto the surface and the electrode.
③The electron transfer between the ozone molecules and the electrode results in the oxidation of some oxygen molecules present on the electrode to a higher oxidation state.
④This oxidation process leads to the consequent movement of electrons in the electrolyte, which generates a detection signal.
3.Application of Ozone Sensor
Ozone sensors have the advantages of high detection accuracy, fast response speed, good stability, long service life, etc., and have a wide range of applications in environmental testing, industrial production, medical and health care. The following are some examples of ozone sensor applications:
①Air Quality Detection: Ozone sensors can be used to detect the concentration of ozone in the air to provide people with a healthy living environment.
②Industrial Automation Management: Ozone sensors are widely used in industrial production to monitor the concentration of ozone in the air and ensure a safe environment for workers and employees.
③Healthcare: Ozone sensors are also used to detect harmful substances in the air and help doctors diagnose and treat diseases of the respiratory system, cardiac system and other diseases.
To summarize, ozone sensor is a very important environmental monitoring equipment, with a wide range of application prospects.
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