一种适用于高背景辐射场景下的图像粒子测速装置
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
- Filing Date
- 2023-05-04
- Publication Date
- 2026-07-17
AI Technical Summary
Image particle velocimetry cannot obtain accurate measurement results in high background radiation scenarios. Existing technologies cannot effectively suppress background radiation noise, resulting in an extremely low signal-to-noise ratio, which affects the accuracy and reliability of the measurement.
By using a polarization modulator and analyzer in conjunction with a polarizer, gating is achieved through polarization modulation, reducing the second exposure gate width of the camera during double exposure, avoiding the influence of background radiation light, and increasing the signal-to-noise ratio of the image.
It significantly improves the signal-to-noise ratio of image particle velocimetry devices in high background radiation scenarios, enhances the accuracy of flow velocity measurement, and expands the application range of PIV technology in high-temperature combustion flow and outdoor flow measurement.
Smart Images
Figure CN116819122B_ABST