Diffuser outer ring stabilizer channel gap measuring method and device

The invention discloses a diffuser outer ring stabilizer channel gap measuring method and device, the measuring device comprises a vernier caliper body, a movable claw and a fixed claw, the movable claw is provided with a projection with a plane end face, and the fixed claw is provided with an outer convex cylindrical surface whose axis is vertical to the vernier caliper body. During measurement, the convex cylindrical surface of the fixed claw clings to the wave crest of the heat screen, and the convex plane end surface of the movable claw clings to the surface of the outer ring stabilizer, so that the channel gap value can be read quickly and accurately. 本发明公开了一种扩散器外圈稳定器通道间隙测量方法及装置，测量装置包括游标卡尺尺身、动爪和定爪，其中动爪上有一个带有平面端面的凸起，而定爪上有一条轴线垂直于游标卡尺尺身的外凸圆柱面。测量时，定爪的外凸圆柱面紧贴隔热屏的波峰，同时动爪的凸起平面端面紧贴外圈稳定器表面，即可快速、准确地读出通道间隙值。