PIV
A non-contact, instantaneous, dynamic, full-field velocity measurement technique
A PIV system mainly comprises four parts: a timing controller, a computer with PIV application software, an image recorder, and an optical illumination system. It uses optical methods to measure flow and study structures within airflow and liquid flow fields, evolving from traditional flow visualization techniques.
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A tool for active remote sensing detection.
Lidar sends short pulses of laser light into the atmosphere, where the laser interacts with substances in the air, producing reflected and scattered echo signals. These signals are collected by a telescope and analyzed to obtain atmospheric parameters.
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