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公开(公告)号：US5923433A
公开(公告)日：1999-07-13
申请号：US959412
申请日：1997-10-28
CPC分类号： G01N21/05 , G01N21/534
摘要： A flow-through visible-light turbidity sensor is constructed from a molded plastic flow tube with an overmolded opaque housing to shield the optical sensing apparatus from ambient light. The housing also secures and covers all electronics for the sensor. The molded parts provide lower cost and less dimensional variation for the sensor as well as the ability to locate conductivity or other physical probe sensor types within the package.
摘要翻译： 流通的可见光浊度传感器由具有包覆成型的不透明壳体的模制塑料流动管构成，以将光学感测装置遮蔽于环境光。 外壳还固定和覆盖传感器的所有电子元件。 模制部件为传感器提供了更低的成本和更小的尺寸变化，以及在包装内定位电导率或其他物理探针传感器类型的能力。
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公开(公告)号：US06741158B2
公开(公告)日：2004-05-25
申请号：US10199167
申请日：2002-07-18
IPC分类号： H01H3756
CPC分类号： H05B1/0213 , G05D23/1902 , H01H37/56
摘要： Methods and apparatuses for magnetically detecting a temperature change for thermostat control thereof are disclosed. A thermostat control device can be configured to include at least one bi-metallic strip that is configured to experience a change in angular position in response to a temperature change. The thermostat control device is generally associated with a Hall sensor, which includes a plurality of magnets that can experience movement relative to the Hall sensor in response to the change in the angular position of the bi-metallic strip. The temperature change can then be automatically and/or electrically detected in response to the movement of the magnets, wherein the temperature change is utilized for thermostat control thereof.
摘要翻译： 公开了用于磁性检测其恒温器控制的温度变化的方法和装置。 恒温器控制装置可以被配置为包括至少一个双金属条，其配置成响应于温度变化而经历角位置的变化。 恒温器控制装置通常与霍尔传感器相关联，霍尔传感器包括多个磁体，其响应于双金属条的角位置的变化而相对于霍尔传感器经历运动。 然后可以响应于磁体的移动而自动和/或电检测温度变化，其中温度变化用于其恒温控制。
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3.发明授权Focused laser light turbidity sensor apparatus and method for measuring very low concentrations of particles in fluids 失效聚焦激光浊度传感器设备和测量流体中极低浓度颗粒的方法公开(公告)号：US06456375B1
公开(公告)日：2002-09-24
申请号：US09788724
申请日：2001-02-20
IPC分类号： G01N2100
CPC分类号： G01N21/532 , D06F39/004 , G01N21/49 , G01N33/2888 , G01N2021/4707 , G01N2021/4709 , G01N2021/4711 , G01N2021/4726 , G01N2021/4769 , G01N2021/5969
摘要： A turbidity sensor apparatus and method for measuring very low concentrations of particles in a fluid. The turbidity sensor comprises a laser light source for emitting laser light through a fluid. Such a fluid may be hydraulic fluid, oil, water utilized in water purification systems, or other translucent fluids. The turbidity sensor includes a first light-sensitive detector located 90 degrees to incident laser light emitted from the laser light source, and a second light-sensitive detector located at an angle obtuse to the incident laser light emitted from the laser light source, wherein the first and second light-sensitive detectors respectively measure side scattered light and forward scattered light reflected from particles contained within the fluid that come into contact with laser light emitted from the laser light source, thereby providing an accurate and reliable measurement of very low concentrations of particles within the fluid. The turbidity sensor also includes a component for capturing incident laser light entirely emitted from the laser light source, thereby preventing reflection of the laser light back into the fluid. The laser light source may be a Vertical Cavity Surface Emitting Laser (VCSEL) or other light emitting light source.
摘要翻译： 用于测量流体中极低浓度颗粒的浊度传感器装置和方法。 浊度传感器包括用于通过流体发射激光的激光光源。 这种流体可以是在水净化系统中使用的液压流体，油，水，或其它半透明流体。 浊度传感器包括：第一感光探测器，其位于与激光光源发射的入射激光成90度角;以及第二感光探测器，其位于与激光光源发射的入射激光角度钝角处，其中， 第一和第二感光检测器分别测量侧向散射光和从与激光光源发射的激光接触的流体中包含的颗粒反射的向前散射光，从而提供非常低浓度的颗粒的精确和可靠的测量 在流体内。 浊度传感器还包括用于捕获从激光光源全部发射的入射激光的部件，从而防止激光反射回流体。 激光光源可以是垂直腔表面发射激光（VCSEL）或其他发光光源。
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公开(公告)号：USD438479S1
公开(公告)日：2001-03-06
申请号：US29105828
申请日：1999-06-03
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公开(公告)号：US06567166B2
公开(公告)日：2003-05-20
申请号：US09788723
申请日：2001-02-20
IPC分类号： G01N1506
CPC分类号： A47L15/4297 , D06F39/004 , G01N21/49 , G01N21/532 , G01N2021/4707 , G01N2021/4709 , G01N2021/4711 , G01N2021/4726 , G01N2021/4769 , G01N2021/5969
摘要： A turbidity sensor for measuring a full range of particulate content in a turbid environment, including a method thereof. The turbidity sensor includes a laser light source for emitting laser light through the particulate content. The turbidity sensor additionally includes at least one light-sensitive detector located proximate to the laser light source for the detection of light scattered from particles of the particulate content that come into contact with laser light emitted from the laser light source, thereby permitting the accurate measurement of the turbidity of the turbid environment. A plurality of light-sensitive detectors may be employed, including a back scatter detector, a side scatter detector, a forward scatter detector, and a direct transmission detector. The light-sensitive detectors may be arranged in a geometric configuration of light-sensitive detectors with respect to the laser light source.
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