介绍了在飞行中精确测量燃油量的方法。燃油量是液位的非线性函数 ,并与飞行姿态有关。将液面变换到机体坐标系中 ,再通过数值积分 ,可以精确计算出油箱中的燃油量。算例计算了椭球形油箱 ,将计算结果与理论计算结果进行了比较 ,表明此方法有很高的计算精度。 The method of accurately measuring the amount of fuel in flight is introduced. The amount of fuel is a non-linear function of the fluid level and is related to the flight attitude. The level will be transformed into the body coordinate system, and then through the numerical integration, you can accurately calculate the amount of fuel in the tank. An example is given to calculate the ellipsoidal tank. The calculation results are compared with the theoretical calculation results, which shows that this method has high calculation accuracy.