Fiber-optic accelerometer

The invention relates to a fiber-optic accelerometer (10) comprising: - an optical fiber (11, 35, 50) having a free end, said free end being caused to oscillate under the influence of acceleration; -a light source for emitting visible, ultraviolet or infrared light into the optical fiber (11, 35, 50...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	VILLNOW MICHAEL
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The invention relates to a fiber-optic accelerometer (10) comprising: - an optical fiber (11, 35, 50) having a free end, said free end being caused to oscillate under the influence of acceleration; -a light source for emitting visible, ultraviolet or infrared light into the optical fiber (11, 35, 50) at an end of the fiber (11, 35, 50) opposite the free end; - a mirror (14, 24, 45), which is arranged to reflect part of the light exiting the free end back into the optical fiber (11, 35, 50); and - a detection device for capturing reflected light at the end of the fiber (11, 35, 50) opposite the free end, the core of the optical fiber (11, 35, 50) having a Bragg grating in the free end. 本发明涉及种光纤式加速度传感器(10)，其具有：-光学纤维(11、35、50)，所述光学纤维具有自由端部，其中，所述自由端部在加速度影响下产生振动，-光源，所述光源用于在纤维(11、35、50)的背离自由端部的端部处将可见的、紫外的或者红外的光线发射到光学纤维(11、35、50)中，-镜子(14、24、45)，所述镜子布置用于将部分从自由端部射出的光线反射到光学纤维(11、35、50)中，-用于接收纤维(11、35、50)的背离自由端部的端部处的反射光线的探测装置，其中，-光学纤维(11、35、50)的纤芯在自由端部中具有布拉格光栅。