A flow meter in an aluminium compressed air pipe is a device used to measure and monitor air flow. It works on the basis of a specific principle (e.g. the Kamen vortex principle) and derives the flow rate of the air stream by sensing the speed and direction of the air flow in the pipeline and converting this information into an electrical signal for calculation. In aluminium alloy compressed air pipelines, the flow meter plays a vital role. It can help users accurately understand the actual situation of air flow in the pipeline, so as to carry out effective monitoring and control. At the same time, the flow meter also has the advantages of high precision, real-time monitoring and easy installation and maintenance, which makes it widely used in various industrial fields.