公开(公告)号：US07266261B2

公开(公告)日：2007-09-04

申请号：US11222237

申请日：2005-09-09

申请人： Jose Luiz Arias Vidal ,  Manoel Feliciano da Silva, Jr. ,  Ricardo Munoz Freitas ,  Arthur Martins Barbosa Braga ,  Luiz Carlos Guedes Valente ,  Roberth Waldo Angulo Llerna

发明人： Jose Luiz Arias Vidal ,  Manoel Feliciano da Silva, Jr. ,  Ricardo Munoz Freitas ,  Arthur Martins Barbosa Braga ,  Luiz Carlos Guedes Valente ,  Roberth Waldo Angulo Llerna

IPC分类号： G02B6/00 ,  G01L9/00

CPC分类号： G01L11/025 ,  G01F1/38 ,  G01F1/383 ,  G01F1/44 ,  G01L9/0076

摘要： A fiber optics differential pressure transducer (100, 200, 300, 400) containing Bragg networks (118), said transducer being used to measure the differential pressure in a Venturi installed inside a pipe (1), through which a fluid like oil is displaced. The transducer comprises a body (110, 230, 360, 410) of different geometries and a diaphragm (2), at least one Bragg network (118) being attached on each of the surfaces of the same. The diaphragm (2) is placed parallel or transversal to the transducer's body (100, 200, 300, 400). The transducer (200) is isolated from the process fluid by flexible mechanical seals (201) which transmit the pressure up to surfaces of the diaphragm (2). The transducer (300, 400) is provided with two relief microvalves for the purpose of protecting the sensor [diaphragms (2)] in overpressure events.

摘要翻译： 一种包含布拉格网络（118）的光纤差压传感器（100,200,300,400），所述传感器用于测量安装在管道（1）内的文氏管中的差压，流体如油被移位 。 换能器包括具有不同几何形状的主体（110,230,360,410）和隔膜（2），至少一个布拉格网络（118）附接在其每个表面上。 隔膜（2）平行或横向放置在换能器本体（100,200,300,400）上。 换能器（200）通过将压力传递到隔膜（2）的表面的柔性机械密封件（201）与工艺流体隔离。 换能器（300,400）设置有两个浮雕微型阀，用于在超压事件中保护传感器[隔膜（2）]。