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公开(公告)号：US5864392A
公开(公告)日：1999-01-26
申请号：US764128
申请日：1996-12-12
CPC分类号： G01P5/20
摘要： For optical detection of the velocity of gas bubbles in the cooling liquid of an internal combustion engine, light is radiated into the coolant by means of at least one emitter, and the scattered light caused by the gas bubbles, or rather, the change in intensity of light radiation emitted into the coolant, is measured by an optical sensor. The scattered light or intensity change is measured in at least two adjacent areas, and the velocity of the bubbles is determined from the travel time between the measurement signals.
摘要翻译： 为了光学检测内燃机的冷却液中的气泡的速度，通过至少一个发射器将光照射到冷却剂中，并且由气泡引起的散射光，或者强度的变化 通过光学传感器测量发射到冷却剂中的光辐射。 在至少两个相邻区域中测量散射光或强度变化，并且从测量信号之间的行进时间确定气泡的速度。
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公开(公告)号：US06320184B1
公开(公告)日：2001-11-20
申请号：US09350280
申请日：1999-07-09
IPC分类号： G01J508
CPC分类号： F02D35/022 , F02B77/08 , G01M15/10
摘要： An optoelectronic measuring device for monitoring combustion processes in a combustion chamber of an internal combustion engine during operation is provided with optical sensors which are connected to an evaluation unit. The optical sensors may be located in a seal element bounding the combustion chamber. To obtain high measuring quality in a simple manner, the optical sensors each include a lens assembly having a focusing lens whose flat end opposite the combustion chamber is coincident with the focal plane of the focusing lens and is abutted by an end of at least one optical fiber.
摘要翻译： 一种用于在操作期间监测内燃机的燃烧室中的燃烧过程的光电测量装置设置有连接到评估单元的光学传感器。 光学传感器可以位于限定燃烧室的密封元件中。 为了以简单的方式获得高测量质量，光学传感器各自包括具有聚焦透镜的透镜组件，其与燃烧室相对的平坦端与聚焦透镜的焦平面重合并且与至少一个光学器件 纤维。
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