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Nitrogen analyzer
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keyword： Nitrogen analyzer
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An electronic nitrogen analyzer is an instrument used for the precise measurement of nitrogen content or nitrogen-related parameters in substances, with important applications in multiple fields.
Working Principle
Thermal Conductivity Method: This method utilizes the difference in thermal conductivity between nitrogen and other gases. When the gas being measured passes through a thermal conductivity cell, it causes a temperature change in the thermal sensitive element, leading to a change in resistance. The nitrogen concentration is calculated by measuring this resistance change.
Electrochemical Method: This method employs electrochemical sensors, such as fuel cell type sensors. The nitrogen in the gas being measured reacts chemically with the electrodes within the sensor, producing an electrical signal proportional to the nitrogen concentration, thus enabling the measurement of nitrogen content.
Infrared Absorption Method: This method is based on the absorption characteristics of nitrogen for infrared light at specific wavelengths. When infrared light passes through the gas being measured, nitrogen absorbs a portion of the infrared light. The concentration of nitrogen is determined by detecting changes in the intensity of the infrared light.
Instrument Characteristics
Electronic nitrogen analyzers have advantages such as high measurement accuracy, good stability, and fast response speed. They can quickly and accurately provide measurement results for nitrogen content or nitrogen concentration, and can achieve continuous online monitoring, reflecting changes in nitrogen in the measured object in real time. At the same time, the instrument usually has good compatibility and scalability, and can be connected to other devices or systems for convenient data transmission, storage, and further processing.
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