Principle of operation for mechatronic flow meters

The SB mechatronic flow meter works on the principle of a spring supported piston. Flowing liquids lift the piston and the position of the piston is monitored by a magnetic sensor. The spring forces the piston to its original position with decreasing flow and the built-in check valve prevents back flow.

This design means the meter can be installed without regard to inlet/outlet piping requirements. Because a magnetic sensor is detecting the piston position, response time is ≤ 10 msec. Since flow is typically relatively stable, there is very little flexing of the spring. The meter has been successfully tested to 10 million cycles without any detectable wear.