ODiSI 6104 4-Channel Optical Distributed Sensor Interrogator (ODiSI 6000 Series)
Four-channel ODiSI 6000 Series interrogator for high-definition distributed strain and temperature sensing with gage pitch down to 0.65 mm.
- Number of channels
- 4
- Gage pitches
- 0.65 mm, 1.3 mm, 2.6 mm, 5.2 mm
- Max measurement rate
- 250 Hz
- Maximum sensor length per channel, standard mode
- 20 m
Overview
The ODiSI 6104 is the four-channel model of the ODiSI 610x line in Luna's ODiSI 6000 Series of high-definition fiber optic sensing (HD-FOS) interrogators. It works with sensors based on unaltered optical fiber and measures Rayleigh backscatter to acquire strain and temperature with a spatial resolution as fine as 0.65 mm, producing thousands of measurements per meter of sensing fiber.
As an ODiSI 610x model, the ODiSI 6104 can be configured to measure strain or temperature with a gage pitch of 0.65 mm, 1.3 mm, 2.6 mm or 5.2 mm, with a maximum aggregate measurement rate of 250 Hz. In standard mode each channel supports an HD-FOS sensor up to 20 m long or a CFG sensor up to 15 m long; with the optional Extended Range Remote Modules, each channel supports sensors up to 100 m long as well as HD-SC strain-compensated temperature sensors.
Sensors
The system supports high-definition Rayleigh strain and temperature sensors, HD-SC strain-compensated temperature sensors for embedded and surface-mount installations, and continuous fiber grating (CFG) sensors, which offer increased tolerance to vibration and improved dynamic performance. HD strain sensors are NIST-traceable calibrated and are supplied with calibrated scaling coefficients and a reference key for plug-and-play operation.
Software and integration
The ODiSI application software, running on a Linux controller, handles sensor identification and configuration, real-time plotting versus length or time, data logging, replay and export. Data can be streamed over Ethernet via TCP-IP in a JSON-based format, and ODiSI Remote software for Windows and Linux provides networked control and viewing. Integration features include IEEE 1588 PTP time synchronization, a TTL sync output and start/stop triggering. Optional 3DViz software maps data onto 3D CAD models or 2D images.
The ODiSI 6000 Series has been discontinued by the manufacturer; the replacement product is the ODiSI 7100 Series.
Key Features
- Four measurement channels
- High-definition fiber optic sensing (HD-FOS) with sub-millimeter gage pitch
- Configurable gage pitch of 0.65 mm, 1.3 mm, 2.6 mm or 5.2 mm
- Up to 100 m of high-definition sensing fiber per channel with Extended Range Remote Modules
- Maximum measurement rate of 250 Hz
- Compatible with HD strain and temperature, HD-SC strain-compensated temperature and CFG sensors
- Complete system measures, acquires, logs and streams real-time data
- Passive, corrosion resistant, dielectric sensors for bends, corners and embedded locations
- Long sensor life with no drift or recalibration, cycle counts >10^7
- Continuous optical alignment and calibration with every scan
- IEEE 1588 PTP network time synchronization
- JSON-based digital streaming data format
- Sync output TTL pulse and start/stop triggering
- ODiSI Remote software for Windows and Linux
Specifications
| Number of channels |
4
ODiSI 610x models are available with 1, 2, 4 or 8 channels; ODiSI 6104 is the 4-channel configuration
|
|---|---|
| Gage pitches | 0.65 mm, 1.3 mm, 2.6 mm, 5.2 mm |
| Max measurement rate | 250 Hz |
| Maximum sensor length per channel, standard mode | 20 m |
| Maximum sensor length per channel, extended range |
100 m
Sensor lengths longer than 20 m, as well as HD-SC strain-compensated sensors, require optional Extended Range Remote Modules
|
| Standoff cable length |
10, 50, 100, 150 or 200 m
Standard lengths of 10, 50 and 100 m; two cables can be combined to form 150 and 200 m
|
| Maximum patch cord length |
Up to 19 m (depending on sensor length)
Patch cord plus active sensor fiber must not exceed 20 m (Standard) or 100 m (Extended Range) per channel
|
| Data interface | Ethernet |
| Gages per meter, 0.65 mm gage pitch | 1,538 |
|---|---|
| Gages per meter, 1.3 mm gage pitch | 768 |
| Gages per meter, 2.6 mm gage pitch | 384 |
| Gages per meter, 5.2 mm gage pitch | 192 |
| Gages per meter, CFG sensors (6 mm gage pitch) |
166
CFG mode requires Luna CFG sensors
|
| 2.5 m mode |
62.5 Hz (0.65 mm), 125 Hz (1.3 mm), 250 Hz (2.6 mm), 250 Hz (5.2 mm), 62.5 Hz (CFG)
Rates are aggregate; divide by number of active channels to determine the per-channel rate
|
|---|---|
| 5 m mode |
40 Hz (0.65 mm), 80 Hz (1.3 mm), 160 Hz (2.6 mm), 160 Hz (5.2 mm), 40 Hz (CFG)
Aggregate rates
|
| 10 m mode |
25 Hz (0.65 mm), 50 Hz (1.3 mm), 100 Hz (2.6 mm), 100 Hz (5.2 mm), 25 Hz (CFG)
Aggregate rates
|
| 20 m mode |
12.5 Hz (0.65 mm), 25 Hz (1.3 mm), 50 Hz (2.6 mm), 50 Hz (5.2 mm), 12.5 Hz (CFG)
Aggregate rates
|
| 50 m mode |
10 Hz (1.3 mm), 20 Hz (2.6 mm), 20 Hz (5.2 mm)
Aggregate rates; not available at 0.65 mm gage pitch or with CFG sensors
|
| 100 m mode |
10 Hz (2.6 mm), 10 Hz (5.2 mm)
Aggregate rates; not available at 0.65 mm or 1.3 mm gage pitch or with CFG sensors
|
| Strain measurement range | ±15,000 µϵ |
|---|---|
| Resolution | 0.1 µϵ |
| Instrument accuracy | ±1 µϵ |
| System (instrument and sensor) accuracy |
±25 µϵ (0.65 mm), ±30 µϵ (1.3 mm, 2.6 mm, 5.2 mm, CFG)
Compared to NIST-traceable extensometer measurements; includes errors from ODiSI instrument and Luna strain sensors. CFG values preliminary
|
| Measurement uncertainty |
±5 µϵ (0.65 mm), ±4 µϵ (1.3 mm), ±2 µϵ (2.6 mm), ±2 µϵ (5.2 mm), ±5 µϵ (CFG)
At zero and across full strain range; twice the standard deviation of 1000 measurements. CFG values preliminary
|
| Dynamic loading rate | 1 Hz (0.65 mm), 2.5 Hz (1.3 mm), 5 Hz (2.6 mm), 5 Hz (5.2 mm), tbd (CFG) |
| Temperature measurement range |
-40 to 200 °C (with standard Luna sensors)
With standard temperature sensors (HD6T and HD6SCT); wider range available with other sensor fiber
|
|---|---|
| Temperature measurement resolution | 0.1 °C |
| Temperature measurement uncertainty |
±2.2 °C (0.65 mm), ±1.6 °C (1.3 mm), ±0.6 °C (2.6 mm), ±0.6 °C (5.2 mm), ±1.0 °C (CFG)
Twice the standard deviation of 1000 measurements
|
| Gage pitch |
1.04 cm
Requires Luna HD-SC temperature sensors and Extended Range Remote Modules
|
|---|---|
| Measurement rate (all lengths) | 2.5 Hz |
| Resolution | 0.1 °C |
| Measurement uncertainty | ±0.9 °C |
| Strain compensation |
Over an applied strain range of 0 to 1800 µϵ, measurement accuracy is ± 2.8 °C
RMS error with the HD-SC sensor subjected to axial strain; includes effects of the ODiSI interrogator
|
| Class 1 laser | <10 mW |
|---|---|
| Operating temperature range — mainframe and controller | 5 to 40 °C |
| Operating temperature range — standoff cable and remote module | 5 to 60 °C |
| Storage temperature range | 0 to 40 °C |
| Operating and storage relative humidity (non-condensing) | 10 to 90 % RH |
| Operating altitude | -15 to 3,000 m |
| Dimensions — mainframe (W x D x H) | 34 x 35 x 11 cm |
| Dimensions — laptop controller (W x D x H) | 36 x 24 x 1.7 cm |
| Weight (mainframe and controller) | 17 lb (7.8 kg) |
| Power (mainframe and controller) | 160 W |
Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.
Applications
- High fidelity model verification
- Temperature mapping for batteries
- Improving bonding and welding quality
- Embedded sensors for smart parts
- Strain characterization of new materials and complex structures
- In-situ temperature profiling of critical processes
- Two- and three-dimensional strain field measurement for FE model validation
- Multi-material joining evaluation
- Detection of small cracks and defects in critical structures
- Composite materials testing
Included
- ODiSI mainframe with 4 channels
- Instrument controller laptop
- ODiSI application software
- One standoff cable per channel
- One standard length remote module per channel
Options & Accessories
| Option | Description |
|---|---|
| OP06150 | Extended Range Remote Module — Remote module supporting extended sensor lengths of 50 m and 100 m, in addition to standard sensor lengths and strain-compensated temperature (HD-SC) sensors. |
| OPT06100-R | Rack Mount Controller Option — Rack mount (1U) instrument controller (substituted for laptop). |
| OPT06020 | USB-3106 Analog Output — 16-channel analog output module for ODISI (voltage or current outputs). |
| OPT06125 | 3Dviz - 3D/2D Visualization Software — Visualization software for mapping real-time or saved ODiSI data onto 3D models and 2D images. Compatible with Windows OS. |
| OPT06123 | 3Dviz - 2D Visualization Software — Visualization software for mapping real-time or saved ODiSI data onto 2D images. Compatible with Windows OS. |
| HD6SXXLC300P | HD strain sensor — HD strain sensor, LC2+ connector, polyimide coating, 300 °C, length = XX m (1 to 100 m) |
| HD6TXXLC220P | HD temperature sensor — HD temperature sensors with PTFE sleeving, length = XX m (1 to 5 m) |
| HD6SCTXXLC220P | HD strain-compensated temperature sensor — HD strain-compensated temperature sensors with PTFE sleeving, 200 °C, length = XX m (1 to 5 m) |
| HDCFGXXXLCP | HD continuous fiber grating (CFG) sensor — HD continuous fiber grating (CFG) sensors, length = XXX m (1 to 15 m) |
| FOSAPPKIT | Fiber Optic Sensor Application Kit — Materials (epoxy, tools, etc.) required to install 10 m of sensing fiber |
Documents & Resources
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