公开(公告)号：US20150116709A1

公开(公告)日：2015-04-30

申请号：US14397426

申请日：2013-04-26

Applicant: UNIVERSIDADE DE AVEIRO ,  INSTITUTO DE TELECOMMUNICAÇÕES

Inventor： Lúcia Maria Botas Bilro ,  Ricardo Xavier Da Graça Ferreira ,  Jan Jacob Keizer ,  Sérgio Prats Alegre ,  Rogério Nunes Nogueira

IPC: G01N21/53

CPC classification number: G01N21/53 ,  G01N21/532 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/0668 ,  G01N2201/08

Abstract: The present invention describes a low-cost, portable multi-parameter, turbidity sensor based on optical fiber.The sensor quantifies the transmission and scattering of radiation (nephelometry) in a fluid through radiation emission in two or more wavelengths. Inc invention can be used to estimate concentration of suspended sediments, to distinguish the type of sediment based on color, to distinguish different particle-size classes, and to identify and determine the concentrations of different suspended-sediment fractions.The sensor comprises the following elements: radiation emitter of two or more wavelengths (2), a radiation receiver to measure the transmitted radiation. (2), a radiation receiver to measure the scattered radiation (3), and an inner space (4) of the measurement unit containing the fluid being evaluated. The it three elements are located at the specified distances L1, L2 and L3, and at specified angles A1 and A2, as shown in the Figure

Abstract translation: 本发明描述了一种基于光纤的低成本便携式多参数浊度传感器。 传感器通过两个或更多波长的辐射发射量化流体中辐射（比浊法）的透射和散射。 本发明可用于估计悬浮沉积物的浓度，以区分基于颜色的沉积物的类型，以区分不同的粒度等级，并鉴定和确定不同悬浮沉积物组分的浓度。 传感器包括以下元件：两个或多个波长的辐射发射器（2），用于测量透射辐射的辐射接收器。 （2），用于测量散射辐射（3）的辐射接收器和包含被评估的流体的测量单元的内部空间（4）。 其三个元件位于指定的距离L1，L2和L3处，并且在指定的角度A1和A2处，如图所示