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glowshift fuel level gauge test
Glowshift fuel level gauge test measurement system refers to the system that continuously measures and indicates the available fuel quality of the aircraft under the ground and flight conditions. It is more common than the measurement of the oil quantity is more complicated. First of all, since the space on the aircraft is very precious, it is necessary to improve the space utilization as much as possible. Therefore the shape of the fuel tank is not very regular, and the liquid level height must be converted into the fuel volume through more complicated calculation; Secondly, the aircraft is in flight the medium attitude often changes, which causes the inclination of the oil surface and brings errors to the measurement results of the fuel volume. Therefore, the attitude error must be carried out.
Difference compensation; Thirdly, the density of fuel is affected by factors such as origin, temperature and pressure. The change of these factors will lead to the change of fuel volume.Therefore, the fuel density must be compensated. The fuel system is first measured by the oil level sensor,Liquid level height, and then the fuel volume is comprehensively calculated according to the shape parameters of the fuel tank and the attitude parameters of the aircraft flight, and finally multiplied by the fuel density.The fuel quality is obtained from the measurement result of the degree sensor. In the above process, the accurate measurement of fuel level is the first step for the accurate measurement of fuel quantity.Therefore, it is important to improve the accuracy and performance of the fuel level sensor for improving the performance of the aircraft fuel measurement system.
For a long time, engineers and researchers have been committed to improving the measurement accuracy of aircraft fuel system and improving various measurement methods.Many liquid level sensors based on mechanical, vibration, ultrasonic, electromagnetic, electrical, optical and radiation principles have been developed, but due to the complexity, difficulty and manufacturing cost of dry aircraft fuel measurement, only a few measurement methods have been applied.In early airplanes, float type sensors were used for liquid level measurement, while in some simple airplanes, oil was only used before take off the ruler measures the amount of fuel in the fuel tank. During the flight, the pilot's experience is relied on to judge the remaining amount of fuel in the fuel tank.
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