Plane and three-dimensional cascade remote experiment device

Abstract

The invention discloses a plane and three-dimensional cascade remote experiment device, which comprises a remote control terminal, three linear motors used for controlling a pressure probe to move inan X-direction, a Y-direction and a Z-direction in the space, a stepping motor used for controlling the pressure probe to rotate, a stepping motor used for controlling a cascade to rotate, a pressureprobe arranged on an output shaft of the first stepping motor, a camera probe arranged on a shell of the first stepping motor for collecting a real-time image and a plurality of sensors used for transmitting the position information and rotation angle of the pressure probe, the rotation angle of the cascade and a pressure signal measured by the pressure probe to the remote control terminal, wherein the camera probe is used for feeding back collected real-time image signals to the remote control terminal, and the remote control terminal is used for controlling the three linear motors and the two stepping motors to operate. The plane and three-dimensional cascade remote experiment device realizes accurate measurement for the pressure of a certain measurement point by applying a remote cascade and pressure probe controlling method, improves the measurement accuracy and experiment efficiency and provides convenience for further research.

Description

technical field [0001] The invention belongs to the technical field of impeller machinery, and in particular relates to a remote experimental device for plane and three-dimensional blade cascades. Background technique [0002] At present, planar and three-dimensional cascades have been widely used, and the aerodynamic performance of blades in turbomachinery such as gas turbines and steam turbines can be evaluated and verified experimentally by measuring the pressure at the inlet and outlet of the cascade. However, due to the need for multi-point measurement at the outlet of the cascade, the manual operation is not only cumbersome and complicated but also has limited measurement accuracy; at the same time, when measuring the total pressure at the outlet of the cascade, the corresponding relationship between the pressure signal of the measurement point and the spatial coordinates of the measurement point requires Recording manually is prone to errors. These problems will lead...

AI Technical Summary

Problems solved by technology

However, due to the need for multi-point measurement at the outlet of the cascade, the manual operation is not only cumbersome and complicated but also has limited measurement accuracy; at the same time, when measuring the total pressure at the outlet of the cascade, the corresponding relationship between the pressure signal of the measurement point and the spatial coordinates of the measurement point requires Manual recording, error-prone

These problems will lead to inaccurate experimental measurement results, so we designed a remote experimental device for planar and three-dimensional cascades

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