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1. 发明授权

US5703690A Optical granulometer for measuring the concentration of particulate present in a fluid at low standard concentrations 失效
标题翻译：用于测量低标准浓度的流体中存在的颗粒浓度的光学粒度计
公开(公告)号：US5703690A
公开(公告)日：1997-12-30
申请号：US664833
申请日：1996-06-17
申请人： Umberto Perini , Paolo Martinelli , Elena Golinelli , Sergio Musazzi , Franco Trespidi , Nice Pintus
发明人： Umberto Perini , Paolo Martinelli , Elena Golinelli , Sergio Musazzi , Franco Trespidi , Nice Pintus
IPC分类号： G01N15/02 , G01N21/00
CPC分类号： G01N15/0205
摘要： The granulometer uses a measuring laser beam (9) to illuminate particulate and, through the measure of the distribution of the light diffused by the examined particulate and gathered by a collecting lens (11), measures the concentration of particulate in the fluid in low concentration standards, the laser beam (9) being a converging one focused on a laser opaque shell (12) that partly covers the same lens.
摘要翻译：粒度计使用测量激光束（9）照射颗粒，并且通过测量由被检查的颗粒扩散并由聚光透镜（11）聚集的光的分布，测量低浓度流体中颗粒的浓度标准，激光束（9）是聚焦的聚焦的激光束（9），其聚焦在部分覆盖相同透镜的激光不透明壳体（12）上。

2. 发明申请

US20050162640A1 On-line tension measurement in an optical fibre 有权
标题翻译：光纤中的在线张力测量
公开(公告)号：US20050162640A1
公开(公告)日：2005-07-28
申请号：US10499809
申请日：2001-12-27
申请人： Paolo Martinelli , Franco Trespidi
发明人： Paolo Martinelli , Franco Trespidi
IPC分类号： C03B37/025 , G01L1/24 , G01L5/10 , G01M11/00 , G01N21/00 , G01B11/16
CPC分类号： G01M11/37 , C03B37/0253 , C03B2205/40 , G01L1/242 , G01L5/105
摘要： A process of contactless monitoring the tension in an optical fibre and a tension meter which enables contactless measurement of the tension in a bare and in a coated optical fibre. By measuring the retardation induced by the birefringence of an optical fibre by means of a polarised light beam incident to the fibre at an angle between about 10° and 25° to the detection optical axis, it is possible to accurately measure tensions over a wide range, i.e., from less than about 10 g to about 450 g. The method enables monitoring the tension during the ramp-up of the drawing process and is particularly advantageous for the control of the drawing tension in manufacturing of NZD, multimode or special fibres. Accurate monitoring of the tension both on a bare and on a coated fibre can also be achieved.
摘要翻译：一种无接触地监测光纤中的张力和张力计的过程，其能够对裸露和涂覆的光纤中的张力进行非接触式测量。通过以与检测光轴成约10°至25°的角度入射到光纤的偏振光束测量由光纤的双折射引起的延迟，可以精确地测量宽范围内的张力，即小于约10g至约450g。该方法能够在拉拔过程中监测张力，并且对于控制NZD，多模或特殊纤维制造过程中的拉伸张力特别有利。也可以在裸露的和涂覆的纤维上精确地监测张力。

3. 发明授权

US07145646B2 On-line tension measurement in an optical fiber 有权
标题翻译：光纤中的在线张力测量
公开(公告)号：US07145646B2
公开(公告)日：2006-12-05
申请号：US10499809
申请日：2001-12-27
申请人： Paolo Martinelli , Franco Trespidi
发明人： Paolo Martinelli , Franco Trespidi
IPC分类号： G01N21/00
CPC分类号： G01M11/37 , C03B37/0253 , C03B2205/40 , G01L1/242 , G01L5/105
摘要： A process of contactless monitoring the tension in an optical fiber and a tension meter which enables contactliess measurement of the tension in a bare and in a coated optical fiber. By measuring the retardation induced by the birefringence of an optical fiber by means of a polarized light beam incident to the fiber at an angle between about 10° and 25° to the detection optical axis, it is possible to accurately measure tensions over a wide range, i.e., from less than about 10 g to about 450 g. The method enables monitoring the tension during the ramp-up of the drawing process and is particularly advantageous for the control of the drawing tension in manufacturing of NZD, multimode or special fibers. Accurate monitoring of the tension both on a bare and on a coated fiber can also be achieved.
摘要翻译：一种无接触地监测光纤中的张力和张力计的过程，其能够在裸机和涂覆的光纤中进行无缝测量张力。通过以与检测光轴成约10°至25°的角度入射到光纤的偏振光束测量由光纤的双折射引起的延迟，可以精确地测量宽范围内的张力，即小于约10g至约450g。该方法能够在拉拔过程中监测张力，并且对于控制NZD，多模或特殊纤维制造过程中的拉伸张力特别有利。也可以在裸露的和涂覆的纤维上精确地监测张力。

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