The invention provides a coaxial dual-rotor helicopter propeller spacing measuring device and method, and belongs to the technical field of test flight test, in the measuring device, a UTD sensor collects the time when a propeller blade sweeps over a detection area and sends the time to a collection processor; the acquisition processor obtains the rotation angular velocity of the rotor blades according to the light signals reflected by the reflective sign stickers, and obtains the blade spacing according to the installation parameters of the UTD sensors, the time when the blades sweep the detection area and the rotation angular velocity of the rotor blades; through a non-contact optical measurement technology, the motion trail of the paddle is captured in real time, and the high-precision heights of the upper and lower layers of the paddle are obtained, so that the accuracy of paddle spacing measurement is improved; non-contact measurement is used, direct contact with the paddle is not needed, the problems of safety risk and paddle damage possibly caused by traditional contact measurement are avoided, the measurement process is safer and more reliable, and man-made interference in the maintenance process is reduced; and the requirement of paddle distance measurement is met.

    本申请提供一种共轴双旋翼直升机桨间距测量装置及方法,属于试验试飞测试技术领域,该测量装置中,UTD传感器采集桨叶扫过探测区域的时间,并发送给采集处理器;采集处理器根据反光标志贴反射的光信号获得旋翼桨叶旋转角速度,并根据UTD传感器的安装参数、桨叶扫过探测区域的时间和旋翼桨叶旋转角速度,获得桨间距;通过非接触式光学测量技术,实时捕捉桨叶的运动轨迹,获得高精度的上下层桨叶高度,使得桨间距测量的准确性得到提升;使用非接触式测量,无需直接接触桨叶,避免了传统接触式测量可能带来的安全风险和桨叶损伤问题,测量过程更加安全可靠,减少了维护过程的人为干扰;满足桨间距测量需求。


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    Title :

    Device and method for measuring pitch of coaxial double-rotor helicopter


    Additional title:

    一种共轴双旋翼直升机桨间距测量装置及方法


    Contributors:
    GUO CONG (author) / LI QIWEI (author) / ZHOU QIANG (author) / ZHANG WENWEI (author) / HUANG AN (author) / TANG YONG (author) / XU YOUSONG (author) / LI MINGQIANG (author)

    Publication date :

    2024-02-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



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