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Description
The displacement sensor D-02 makes use of the internal strain sensitivity of the FBG. The FBG is fixed inside a ruggedised stainless steel housing between two anchoring points. One of the anchoring points is connected to a sliding pin mechanism that can be moved to the inward direction. A spring mechanism assures that the sliding pin comes back to the outward direction when no small force is acting on it. Any movement of the pin is recorded by the FBG . In order to compensate for temperature influences, a FBG based temperature probe is integrated within the housing.
The housing consists of stainless steel and is terminated with an optical connector or an integrated adapter.
Features
The displacement sensor D-02 can measure displacement and temperature with a resolution of 0,05% Full Scale and 0,1°C respectively and an accuracy of 0,5% Full Scale and 1°C respectively. The displacement range can be chosen between 1 and 5 cm.
Applications
The displacement sensor D-02 can be applied for positioning measurements. The sensor can also be used with special packers in bore holes to determine geological settlements or can be surface mounted to detect movements between the anchoring points.