| 摘要 |
FIELD: measuring equipment engineering. ^ SUBSTANCE: method includes placing a valve at portion of pipeline, valve being in form of elastic membrane filled with magnetic liquid, inside which along flow constant ring magnet and disconnected core with coil are placed, which are made of magnetic-hard material, respectively, with large and small coercive force, Adjustment of flow rate is performed by throttling flaw by elastic membrane, moved by magnetic liquid under effect from magnetic field of magnetic-hard material. ^ EFFECT: higher sensitivity. ^ 2 dwg |
