Preferred term

Inclinometer

Definition

Lidar orientation system affixed to the bracket structure. In turn, the bracket structure is affixed to the ground or to another structure, like the nacelle. of Lidar orientation measurement system.
Sistema de medida de la orientación del lidar.
Sistema di misurazione dell'orientazione del lidar.
贴在激光雷达支架结构上的定位系统，用于测量物体相对于重力方向的倾斜、仰角或俯角角度。而支架结构被固定在地面或其他结构上，如机舱。

http://vocab.ieawindtask32.org/wind-lidar-ontology/Inclinometer