O2-W2 Electrochemical Oxygen Sensor For Industrial Furnaces Automotive Industry
Basic Introduction:
O₂ - W₂ oxygen sensor is a device designed to accurately detect the concentration of oxygen in various environments. It plays a crucial role in applications like industrial gas analysis, automotive exhaust monitoring, and indoor air quality control.
Working Principle:
Typically, the O₂ - W₂ oxygen sensor operates based on electrochemical or zirconia - based principles. In the electrochemical mode, when oxygen molecules reach the sensing electrode, redox reactions occur. These reactions generate an electrical signal proportional to the oxygen concentration, which can be measured and analyzed. For the zirconia - based type, at high temperatures, zirconia becomes an oxygen - ion conductor. The difference in oxygen partial pressure between the measured gas and a reference gas (usually air) creates an electromotive force (EMF), and this EMF is related to the oxygen concentration in the measured gas, enabling concentration determination.
Performance Characteristics:
High Sensitivity: It can detect even small changes in oxygen concentration, with a minimum detectable range often reaching [X] ppm (parts per million), ensuring accurate monitoring in both low - and high - concentration scenarios.
Fast Response Time: The sensor can respond to changes in oxygen concentration within [X] seconds, allowing for real - time and timely feedback, which is vital for applications requiring immediate adjustments, such as in closed - loop control systems for combustion processes.
Good Stability: Over a certain period of continuous operation (e.g., [X] hours), its measurement deviation remains within an acceptable range (e.g., ±[X]% of the measured value), ensuring reliable long - term use.
Application Fields:
Industrial Furnaces: Used to monitor and control the oxygen content in the furnace atmosphere, optimizing combustion efficiency, reducing energy consumption, and minimizing pollutant emissions like NOₓ.
Automotive Industry: Installed in exhaust gas after - treatment systems to ensure the proper functioning of catalytic converters by monitoring the oxygen level in the exhaust, thus meeting emission standards.
Medical Equipment: Applied in devices such as anesthesia machines to accurately control the oxygen concentration in the breathing gas mixture, ensuring patient safety during surgical procedures and respiratory therapy.
| Measurement Principle | Electrochemical |
| Measurement Range | 0 - 25% Vol |
| Minimum Detectable Limit | 0.1 ppm |
| Resolution | 0.01% Vol |
| Response Time (T90) | ≤ 15 s |
| Operating Temperature Range | -20 °C - 50 °C |
| Operating Humidity Range | 15% - 90% RH |
| Supply Voltage | 5 VDC ± 0.2 V |
| Current Consumption | ≤ 50 mA |
| Output Signal | 4 - 20 mA, or 0 - 5 VDC |
| Accuracy | ± 2% |
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O2-W2 Electrochemical Oxygen Sensor For Industrial Furnaces Automotive Industry Images
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