Method and system for detecting angular position of blades of rotor wheel of turbine engine

A method of detecting the angular positions of blades of a rotor wheel of a turbine engine, the turbine engine having at least two rotor wheels driven by a common shaft, the first and second wheels comprising respective first and second numbers of blades regularly distributed around their circumferences. The method comprises detecting (200) the passage of each blade of the first wheel past a firstsensor, detecting (210) the passage of each blade of the second wheel past a second sensor, calculating the time intervals between the passage of a blade of the first wheel and the passages of each of the blades of the second wheel, and determining (230) the relative angular position of each blade of the first wheel relative to the angular positions of the blades of the second wheel, the first number and the second number being distinct and mutually prime. 一种检测涡轮发动机的转子叶轮的叶片的角位置的方法，该涡轮发动机具有由公共轴驱动的至少两个转子叶轮，第一叶轮和第二叶轮包括围绕它们的周缘规则分布的相应的第一数量的叶片和第二数量的叶片。该方法包括检测(200)第一叶轮的每个叶片经过第一传感器的通过，检测(210)第二叶轮的每个叶片经过第二传感器的通过，计算第一叶轮的叶片的通过与