Description of the structure and principle of the plug-in flowmeter

First, the structure and principle of the plug-in ultrasonic flowmeter
1. Structure and principle of plug-in ultrasonic flowmeter
The plug-in ultrasonic flowmeter consists of a converter and a pair of plug-in sensors. The plug-in sensor consists of a positioning base, a ball valve, and a sensor core.
Principle: When the ultrasonic wave passes through the liquid, the liquid has a slight influence on the insertion time, and the change of the insertion time is proportional to the liquid flow rate.
2. Structure and principle of plug-in electromagnetic flowmeter
The plug-in electromagnetic flowmeter consists of a converter and a single plug-in sensor. Plug-in sensors are available with or without ball valves.
The principle of measurement, its working principle is based on Faraday's law of electromagnetic induction. When the conductive liquid flows into the measuring tube surrounded by the magnetic field, an induced electromotive force E proportional to the average velocity V is generated in a direction perpendicular to both the flow velocity and the magnetic field. The magnetic field strength B is a constant (controlled by the coil current), and the distance between the monitoring electrodes is also fixed. Therefore, the liquid flow velocity V is the only variable that senses the charging dynamic potential E, and the output signal of the electromagnetic flowmeter is linear with the flow rate.