Electromagnetic flow sensor

An electromagnetic flow sensor for an electromagnetic flow meter (201) is disclosed. The sensor comprises a body (204) or frame, a flow passage (252) through the body or frame, a part of a magnetic circuit (248, 295) supported by the body or frame for applying a magnetic field across the flow passage, and at least first and second electrodes (298) supported by the body or frame, the at least firstand second electrodes arranged to sense a voltage in response to a conductive fluid flowing through the flow passage. At least a portion of the body supporting the magnetic circuit part and the at least first and second electrodes is configured to be insertable into a flow tube (206) through a single aperture in the flow tube. 本发明公开了用于电磁式流量计(201)的电磁式流量传感器。该传感器包括：本体(204)或框架；穿过该本体或框架的流动通路(252)；由该本体或框架支撑的磁路部件(248、295)，用以施加穿过该流动通路的磁场；以及由所述本体或框架支撑的至少第电极和第二电极(298)，该至少第电极和第二电极被设置成响应于流经该流动通路的导电流体而感测电压。支撑该磁路部件以及至少第电极和第二电极的所述本体的至少部分被配置成能通过流管(206)中的单个孔插入到所述流管中。