แบรนด์ไดน่าโฟล์ว DLGB ซีรี่ เครื่องวัดการไหลแบบกระแสน้ำวน

Vortex flowmeter work on the principle of generated vortex
and relation between vortex and flow by theory of Karman and
Strouhal, which specialize in measurement of steam, gas and liquid
of lower viscosity. As shown in below illustration, medium flows
through bluff body and then vortex is generated, vortices are
alternately formed on both sides with opposite directions of rotation,
Vortices frequency is directly proportional to medium velocity.Through
numbers of vortices that is measured by sensor head,medium velocity
is calculated, plus flowmeter diameter, final volumeflow come out.