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首页> 外文会议>Proceedings of the Twenty-sixth annual meeting of the American Society for Precision Engineering >Automatic Valve Inspection of Fuel Injection Nozzles with a Focus Variation Instrument
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Automatic Valve Inspection of Fuel Injection Nozzles with a Focus Variation Instrument

机译：使用焦距变化仪自动检查喷油嘴的阀门

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摘要

The leak-tightness of the valves for fuel injection nozzles is a crucial requirement to reduce fuel consumption and emissions. Due to the small dimensions and small tolerances of such nozzles, as well as the fact that the measurement is performed through a hole, the check for leaks is a demanding challenge. Here we present an optical measurement device based on the focus variation technology that measures the topography of the valves and automatically extracts significant parameters from this topography in order to judge the leak-tightness. In the following we first present the 3D measurement device used for the inspection and afterwards describe the inspection methodology.
机译：用于燃料喷嘴的阀的密封性是减少燃料消耗和排放的关键要求。由于这种喷嘴的尺寸小和公差小，以及通过孔进行测量的事实，检查泄漏是一个严峻的挑战。在这里，我们介绍一种基于焦点变化技术的光学测量设备，该技术可测量阀门的形貌并自动从该形貌中提取重要参数，以判断密封性。在下文中，我们首先介绍用于检查的3D测量设备，然后介绍检查方法。

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