An Overview of Propeller Flow Meter: Principle, Structure and Application

The Propeller Flow Meter is an instrument used to measure water flow velocity and plays an important role in multiple fields.

Its working principle is based on the rotation of the propeller driven by water flow. The rotational motion of the propeller is converted into an electrical signal by a sensor, and then the flow velocity value is obtained and displayed after being processed by the measurement circuit. Structurally, it mainly consists of a propeller, a sensor, a measurement circuit, as well as a housing and accessories. The propeller is made of a lightweight and corrosion-resistant material, and its blade parameters affect the measurement performance. There are various types of sensors, such as magnetoelectric and photoelectric sensors. The measurement circuit is responsible for signal processing and conversion. The housing has characteristics such as waterproof, dustproof, and shockproof, and the accessories are convenient for operation and installation.

This flow velocity meter has the characteristics of small size, portability, and simple operation. It has a relatively high measurement accuracy, a wide application range, and can be used in various water bodies and different flow velocity ranges. It also has good stability and can work in harsh environments. Its technical parameters include measurement range, accuracy, resolution, working water depth, and data storage capacity, etc., which vary among different models.

In the application fields, it is used in the planning, design, and operation management of water conservancy projects, for tracking pollution diffusion in environmental monitoring, for obtaining basic data in hydrological surveys, and also plays a role in scientific research, teaching, and industrial applications, such as in water supply and drainage and sewage treatment. It is a capable tool for water flow velocity measurement and provides crucial water flow velocity information for various industries.