On-line Measurement System for Anti icing Agent Content of Jet Fuel Based on Near Infrared Spectroscopy

摘要

For reducing the freezing possibility of water in jet fuel, it is necessary to add a certain amount of anti icing additive in jet fuel before refueling a plane. The jet fuel is a mixture contain of all variety of hydrocarbons and additives, so the online measurement of anti-icing additive concentration in jet fuel is difficult. In this paper, a method for measuring the concentration of anti-icing additive in jet fuel using near infrared (NIR) spectroscopy is studied. Based on this methods, The composition of the measurement system is put forward, and the on-line sampling device and the temperature control circuit are designed. According to the experimental data, it is proved that the system can realize the on-line measurement of the anti icing agent content and meet the requirements of the anti icing agent content measurement in the aircraft refueling.