公开(公告)号：US6140810A

公开(公告)日：2000-10-31

申请号：US165648

申请日：1998-10-02

Applicant: Klaus Bohnert ,  Hubert Brandle ,  Philippe Gabus ,  Jadran Kostovic ,  Jiri Talir

Inventor： Klaus Bohnert ,  Hubert Brandle ,  Philippe Gabus ,  Jadran Kostovic ,  Jiri Talir

IPC: G01R15/24 ,  G01R29/12

CPC classification number: G01R15/241

Abstract: The subject matter of the present invention is a fiber-optic outdoor high-voltage sensor 1. The known sensor principle is based on the fact that a piezoelectric quartz cylinder 3 wound with a glass fiber 4a effects a voltage-proportional fiber strain which is measured interferometrically. According to the invention, a 420 kV outdoor sensor 1 is created by virtue of the fact that several quartz cylinders 3 and electrically conductive spacing elements 5 are arranged in an alternating fashion one behind another and are sealed in a silicone-shielded 17 insulating tube 16 by means of polyurethane 18 or silicone 21. Dividing the high voltage between several spaced, E-field integrating sensor elements 2 permits simple field control and a very high measuring accuracy. In addition, the fiber-optic voltage sensor 1 is distinguished by a low outlay on insulation, compactness and low weight, and can easily be scaled to other voltage levels and be effectively combined with optical current sensors 38.

Abstract translation: 本发明的主题是光纤室外高压传感器1.已知的传感器原理是基于以下事实：卷绕有玻璃纤维4a的压电石英气缸3实现测量的电压 - 比例纤维应变 干涉式 根据本发明，由于几个石英气缸3和导电间隔元件5以交替的方式彼此排列并被密封在硅树脂屏蔽17绝缘管16中的事实而产生420kV室外传感器1 通过聚氨酯18或硅树脂21.在几个间隔的E场积分传感器元件2之间划分高电压允许简单的场控制和非常高的测量精度。 此外，光纤电压传感器1的特征在于绝缘性，紧凑性和重量轻的低成本，并且可以容易地缩放到其他电压电平并且与光电流传感器38有效地组合。