LUNA
OS3510 : Surface Mount Strain Sensor
The os3510, based on fiber Bragg grating (FBG) technology, is intended exclusively for surface mounting. Each end of the os3510 is attached to the structure via rigid brackets that are either welded, bolted, epoxied, or grouted to the surface of a concrete, rock, steel, composite, or other structure.
A rugged, stainless steel body, ruggedized cables and optional connector protection fittings make the os3510 suitable for harsh environments. Two FBGs are well protected inside the os3510 body. One FBG measures strain, and the other provides for integrated temperature compensation. Since there are no epoxies holding the fiber to the carrier, longterm stability is ensured by design.
In side-by-side comparisons with vibrating-wire and foil strain gages, the os3510 is equally sensitive and accurate, while providing 100 times more fatigue life. The os3510 strain gage is qualified for use in harsh environments and delivers the many advantages inherent to all FBG based sensor.
This sensor can be used alone or in series as part of an FBG sensor array. Installation and cabling for such arrays is much less expensive and less cumbersome than comparable electronic gage networks.
Key Features
- Ruggedized sensor package, qualified to same rigorous standards applied to electronic gages
- Integrated temperature compensation FBG sensor
- Connector protection fittings available for harsh environments
- Double-ended design supports multiplexing of many sensors on one fiber
- Patented micro opto-mechanical technology
Specifications
- Strain sensitivity:
- ~ 1.2 pm/με
- Gage length:
- 110 mm
- Operating temperature range:
- -40 to 80 °C
- Strain limits:
- ± 2,500 με
- Material:
- Stainless stell construction
- Water resistance:
- Suitable for wet, high humidity environments (IP67)
- Fatigue life:
- > 1×10^8 cycles @ +/- 2,000 ue
