Υπέρυθροι Αισθητήρες Αιθυλενίου

Infrared Sensors

Monitoring Ethylene levels during the ripening process is crucial in optimising the ripening process in bananas.

TAKEM SA can provide innovative Ethylene Sensors for ripening rooms that use Infrared technology and hold several advantages over the traditional electrochemical sensors, as outlined below.

The Innovative technology

The Infrared (IR) detection method is based upon the absorption of infrared radiation at specific wavelengths as it passes through a volume of gas. Typically two infrared light sources and an infrared light detector measures the intensity of two different wavelengths, one at the absorption wavelength and one outside the absorption wavelength. If a gas intervenes between the source and the detector, the level of radiation falling on the detector is reduced. Gas concentration is determined by comparing the relative values between the two wavelengths. This is a dual beam infrared detector.

Many hydrocarbons absorb IR at approximately 3.4 micrometers and in this region H2O and CO2 are relatively transparent. It is therefore ideal for detecting Ethylene (c2H4) levels in cold storage rooms. Our ethylene gas sensor can detect ethylene with concentrations up to 2.4 Vol.-%

Advantages

The major advantages of IR gas detectors:

  • Immunity to contamination and poisoning.
  • Consumables (source and detector) tend to outlast traditional sensors.
  • Can be calibrated less often than a traditional detector.
  • Ability to operate in the absence of oxygen or in enriched oxygen.
  • Ability to operate in continuous presence of gas.
  • Can perform more reliably in varying flow conditions.
  • Even when flooded with gas, will continue to show high reading and sensor will not be damaged.
  • Able to detect at levels above 100 % LEL.

Contact us today to get a quotation.

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