Research on the Testing Technology for the Water-saving Performance of Shower Nozzle Based on Image Analysis

摘要

Spray field of the shower nozzle has its own unique characteristics, which are instantaneity and speediness, gas-liquid two-phase nature and complexity of multiple jets. Using the traditional artificial observational method to detect the water-saving performance can not get high precision and can only extract limited characteristics. A method of image acquisition and analysis technology is described in this article, which can provide foundation for testing water-saving performance of the nozzle. By the image analysis method, it can obtain both the flow characteristic of the jet in the spray field and the relationships of pressure, flow rate and spray angle.