Luna os7230 FBG Optical Accelerometer
Fiber Bragg grating optical accelerometer from the os7200 series with 90 pm/g sensitivity and a 5 to 1000 Hz frequency range.
- Frequency range
- 5 to 1000 Hz
- Sensitivity
- 90 pm/g
- Measurement range
- ±30 g-
- Resonance frequency
- > 1,300 Hz
Overview
The Luna os7230 is a fiber Bragg grating (FBG) based optical accelerometer in the os7200 series. It uses FBG technology to measure vibration events, and it can share a fiber with sensors for other physical parameters such as strain, temperature, displacement, pressure and tilt. The sensors can be spread over tens of kilometers of fiber and built into monitoring systems.
The os7230 has a 5 to 1000 Hz frequency range and a sensitivity of 90 pm/g. It mounts with a standard M6 thread. Mounting blocks are available for two-axis and three-axis configurations. The sensor has a sealed stainless steel body and Kevlar armored cables for use in harsh environments. The manufacturer offers a radiation-hardened variant of the os7230.
Up to 128 os7200-series sensors can run on one Luna HYPERION instrument. The sensors work with ENLIGHT Sensing Analysis Software, which handles data acquisition, computation and analysis for optical sensor networks. They also work with the HYPERION platform's Application Programming Interface (API), which comes with examples in LabVIEW, Python, Matlab, C++ and C#.
Key Features
- High sensitivity
- Rugged sensor package
- Multipoint up to 128 sensors on a single HYPERION instrument
- Various physical parameters measurements coupled onto the same fiber optic cable
- Long distance, with 10's of kilometers of coverage
- Available mounting block for two and three axes
- Compatible with Luna's ENLIGHT software
- Sensors are individually calibrated
- Radiation hardened variant available
Specifications
| Frequency range | 5 to 1000 Hz |
|---|---|
| Sensitivity |
90 pm/g
Sensors are individually calibrated
|
| Measurement range | ±30 g- |
| Resonance frequency | > 1,300 Hz |
| Transverse sensitivity | < -30 dB |
| Maximum shock | 70 g |
| Operating temperature range | -40 to 60 °C |
| Measurement points | Up to 128 with 16 channel si255, 8 sensors per channel |
| Mounting method | M6 standard mounting thread |
| Sensors per channel |
8 sensors per channel
Custom options for 1460 to 1620 nm
|
|---|---|
| Acceleration FBG wavelengths (+/- 1 nm), standard | 1520, 1528, 1536, 1544, 1552, 1560, 1576, 1584 |
| Accel/Temp FBG wavelengths (+/- 1 nm), standard | 1513/1518, 1523/1528, 1533/1538, 1543/1548, 1553/1558, 1563/1568, 1573/1578, 1583/1588 |
| Dimensions | 22 mm x 45 mm x 62 mm |
|---|---|
| Weight | 280 grams |
| Material | Stainless steel |
| Fiber type | SMF-28 |
| Ingress protection | IP67 |
| Connector options | FC/APC or unterminated |
| Ordering code |
os7230-aaaa-1xx-1yy
aaaa = FBG wavelength; 1xx / 1yy = cable length (1 m standard) and connector (FC = FC/APC, UT = unterminated)
|
|---|
Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.
Applications
- Structures
- Energy
- Transportation
- Marine vessels
Options & Accessories
| Option | Description |
|---|---|
| FC | FC/APC Connector — Cable connector option (xx/yy field of the ordering code) |
| UT | Unterminated — Unterminated cable option (xx/yy field of the ordering code) |
| Mounting block | Mounting block: 2 & 3 axis — Accessory mounting block for two- and three-axis configurations |
| Radiation hardened | Radiation hardened variant — Radiation hardened variant available for the os7230 |
Documents & Resources
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