Online infrared moisture analyzer

Working principle of online infrared moisture analyzer

The principle of infrared light absorption is that the molecular structure inside a substance, such as oxygen hydrogen bonds in water and carbon hydrogen bonds in organic matter, absorbs near-infrared light of specific wavelengths. At a specific wavelength, the reflected near-infrared energy is inversely proportional to the number of molecules it contains that absorb near-infrared radiation. The moisture analyzer analyzes the near-infrared energy changes at a specific wavelength based on the principle that near-infrared wavelengths are absorbed by water molecules.

The online infrared moisture analyzer focuses multiple wavelengths of near-infrared beams onto the surface of the object being measured, and the reflected near-infrared beams from the surface are received and processed by an advanced infrared optical detection system. This advanced infrared optical detection system can quickly process data. An embedded high-performance miniature digital signal processing chip is used to process, store, and display the required data, with outstanding accuracy and stability.

The composition of an online infrared moisture analyzer:

The main components are the near-infrared probe and the host display.

Near infrared probe: using imported optical fiber PBS detector, the detector is independently packaged, and external light does not interfere with the reference measurement; The reference measurement light of the optical path structure and the product measurement light use the same optical path to eliminate the influence of detection errors.

Host display: touch screen operation, using precision sampling chip, the host has both analog and digital output: RS485 (optional MODBUS-RTU standard protocol) DC 4-20MA

Main technical specifications of online infrared moisture analyzer:

Measurement range: 0-20% (maximum measurement range for material water absorption saturation)

Static accuracy: ± 0.1%

Measurement accuracy: ± 0.2% (changes in material composition can cause measurement errors)

Measurement channel: 50

Height range: 350mm ± 100mm

Environmental temperature: 0-50 ℃

Environmental humidity: 5-90%

Repeatability: 0.1%

Response time: 0-60 seconds

Filter range: 0-2.5%

Power supply: AC 110-240V 50HZ/60HZ

Power consumption: 250W

Light interference: not affected by external environmental light changes, the probe does not require a light shield

Temperature influence: With automatic temperature compensation, it is basically not affected by external temperature changes

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