Luna ODiSI 6000 Series optical distributed sensor interrogator

Luna / Series · High-Definition Distributed Fiber Optic Sensing

ODiSI 6000 Series Optical Distributed Sensor Interrogator for High-Definition Fiber Optic Strain and Temperature Sensing

Multichannel Rayleigh-based HD-FOS interrogator measuring distributed strain and temperature with gage pitch down to 0.65 mm on up to 8 channels.

Number of channels: 1, 2, 4 or 8 channels
Maximum sensor length per channel, standard mode: 20 m
Maximum sensor length per channel, extended range: 100 m
Standoff cable length: 10, 50, 100, 150 or 200 m

View Models Datasheet

Overview

The ODiSI 6000 Series from Luna is a family of multichannel high-definition fiber optic sensing (HD-FOS) interrogators. The system works with sensors made from unaltered optical fiber and measures Rayleigh backscatter to acquire distributed strain and temperature data, with a gage pitch as fine as 0.65 mm. This produces thousands of measurement points per meter of sensing fiber and allows strain contours or continuous temperature profiles to be mapped in detail.

The series is offered in two model lines. The ODiSI 610x models (6101/6102/6104/6108) support gage pitches of 0.65 mm, 1.3 mm, 2.6 mm and 5.2 mm, while the ODiSI 600x models (6001/6002/6004/6008) use a 5.2 mm gage pitch. Each is available with 1, 2, 4 or 8 channels. With Standard Remote Modules each channel supports an HD sensor up to 20 m or a continuous fiber grating (CFG) sensor up to 15 m; optional Extended Range Remote Modules extend this to 100 m and enable HD-SC strain-compensated temperature sensors.

Sensors

HD strain sensors use polyimide-coated fiber, are calibrated with NIST-traceable fixtures and are supplied with scaling coefficients and a reference key for plug-and-play identification. CFG sensors, with fiber Bragg gratings inscribed continuously along the fiber, provide increased tolerance to vibration and improved dynamic performance. The sensors are passive and dielectric and can be bonded to curved surfaces or embedded within materials.

Software and integration

The system is a complete data acquisition solution: the ODiSI application software configures sensors, measurements and triggering, and logs, replays and exports data. Data can be streamed in real time over Ethernet in a JSON-based format, and ODiSI Remote software for Windows and Linux provides remote control and viewing. Integration features include IEEE 1588 PTP time synchronization, a TTL sync output and start/stop triggering. Optional 3DViz software maps real-time or saved 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.

Models in this series

Model	Description
ODiSI 6001	Luna ODiSI 6001 Optical Distributed Sensor Interrogator (ODiSI 6000 Series) ODiSI 600x-class distributed fiber optic strain and temperature interrogator from the ODiSI 6000 Series, using a standard 5.2 mm gage pitch.	Details →
ODiSI 6004	Luna ODiSI 6004 4-Channel Optical Distributed Sensor Interrogator (ODiSI 6000 Series) Four-channel ODiSI 600x distributed sensor interrogator that measures strain and temperature along optical fiber with a 5.2 mm gage pitch.	Details →
ODiSI 6101	Luna ODiSI 6101 Optical Distributed Sensor Interrogator (ODiSI 6000 Series) ODiSI 610x-family HD-FOS interrogator measuring distributed strain and temperature over Rayleigh-backscatter fiber with gage pitch down to 0.65 mm.	Details →
ODiSI 6002	ODiSI 6000 Series ODiSI 6002 Two-Channel Optical Distributed Sensor Interrogator Two-channel Rayleigh backscatter interrogator for distributed strain and temperature sensing with a 5.2 mm gage pitch.	Details →
ODiSI 6008	ODiSI 6008 8-Channel Optical Distributed Sensor Interrogator (ODiSI 6000 Series) Eight-channel ODiSI 600x distributed sensing instrument that measures strain and temperature along optical fiber at a 5.2 mm gage pitch.	Details →
ODiSI 6102	ODiSI 6102 2-Channel Optical Distributed Sensor Interrogator (ODiSI 6000 Series) Two-channel ODiSI 610x high-definition fiber optic sensing interrogator for distributed strain and temperature with gage pitch down to 0.65 mm.	Details →
ODiSI 6104	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.	Details →
ODiSI 6108	ODiSI 6108 8-Channel Optical Distributed Sensor Interrogator Eight-channel ODiSI 6000 Series HD-FOS interrogator for distributed strain and temperature sensing with gage pitch down to 0.65 mm.	Details →

Key Features

High-definition fiber optic sensing (HD-FOS) with sub-millimeter gage pitch
Multichannel measurements with up to 8 channels per system
Up to 100 m of high-definition sensing fiber per channel with Extended Range Remote Modules
Complete system measures, acquires, logs and streams real-time data
Flexible, lightweight and easy-to-install fiber optic sensors
Passive, corrosion resistant, dielectric sensors for bends, corners and embedded installations
Long sensor life with no drift or recalibration, cycle counts >10^7
Continuous optical alignment and calibration with every scan
Strain sensors calibrated with NIST-traceable fixtures
Optional strain-compensated temperature mode
Compatible with continuous fiber grating (CFG) sensors for improved dynamic performance
IEEE 1588 PTP network time synchronization
JSON-based digital streaming data format
Sync output TTL pulse and start/stop triggering
Automatic plug-and-play sensor identification
Real-time streaming of data over Ethernet
ODiSI Remote software for Windows and Linux

Specifications

System

Number of channels	1, 2, 4 or 8 channels
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 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

Gage Pitch

Gage pitch (HD sensors) ODiSI 610x	0.65 mm, 1.3 mm, 2.6 mm, 5.2 mm Gage pitch is the distance between centerpoints of consecutive gages
Gage pitch (HD sensors) ODiSI 600x	5.2 mm
Gage pitch (CFG sensors) ODiSI 610x, ODiSI 600x	6 mm CFG mode requires Luna CFG sensors
Gages per meter of sensor	1,538 (0.65 mm); 768 (1.3 mm); 384 (2.6 mm); 192 (5.2 mm); 166 (6 mm CFG)
Max measurement rate ODiSI 610x	250 Hz
Max measurement rate ODiSI 600x	30 Hz

Measurement Rate (aggregate)

0.65 mm gage pitch — 2.5 m / 5 m / 10 m / 20 m mode ODiSI 610x	62.5 Hz / 40 Hz / 25 Hz / 12.5 Hz Rates are aggregate; divide by number of active channels for per-channel rate. Not available in 50 m and 100 m modes
1.3 mm gage pitch — 2.5 m / 5 m / 10 m / 20 m / 50 m mode ODiSI 610x	125 Hz / 80 Hz / 50 Hz / 25 Hz / 10 Hz Rates are aggregate; divide by number of active channels. Not available in 100 m mode
2.6 mm gage pitch — 2.5 m / 5 m / 10 m / 20 m / 50 m / 100 m mode ODiSI 610x	250 Hz / 160 Hz / 100 Hz / 50 Hz / 20 Hz / 10 Hz Rates are aggregate; divide by number of active channels
5.2 mm gage pitch — 2.5 m / 5 m / 10 m / 20 m / 50 m / 100 m mode ODiSI 610x	250 Hz / 160 Hz / 100 Hz / 50 Hz / 20 Hz / 10 Hz Rates are aggregate; divide by number of active channels
5.2 mm gage pitch — 2.5 m / 5 m / 10 m / 20 m / 50 m / 100 m mode ODiSI 600x	30 Hz / 20 Hz / 12.5 Hz / 6.3 Hz / 2.5 Hz / 1 Hz Rates are aggregate; divide by number of active channels
6 mm CFG gage pitch — 2.5 m / 5 m / 10 m / 20 m mode ODiSI 610x, ODiSI 600x	62.5 Hz / 40 Hz / 25 Hz / 12.5 Hz Rates are aggregate; divide by number of active channels. Not available in 50 m and 100 m modes

Strain Performance

Strain measurement range	±15,000 µϵ
Resolution	0.1 µϵ
Instrument accuracy	±1 µϵ
System (instrument and sensor) accuracy, 0.65 mm gage pitch ODiSI 610x	±25 µϵ Compared to NIST-traceable extensometer measurements; average of 150 measurements at each of seven strain increments
System (instrument and sensor) accuracy, 1.3 / 2.6 / 5.2 / 6 mm (CFG) gage pitch	±30 µϵ CFG accuracy specifications are preliminary
Measurement uncertainty, 0.65 / 1.3 / 2.6 / 5.2 / 6 mm (CFG) gage pitch	±5 µϵ / ±4 µϵ / ±2 µϵ / ±2 µϵ / ±5 µϵ Twice the standard deviation of 1000 measurements, at zero and across full strain range; includes interrogator and Luna sensors
Dynamic loading rate, 0.65 / 1.3 / 2.6 / 5.2 / 6 mm (CFG) gage pitch	1 Hz / 2.5 Hz / 5 Hz / 5 Hz / tbd

Temperature Performance

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, 0.65 / 1.3 / 2.6 / 5.2 / 6 mm (CFG) gage pitch	±2.2 °C / ±1.6 °C / ±0.6 °C / ±0.6 °C / ±1.0 °C Twice the standard deviation of 1000 measurements

Strain-Compensated Temperature Mode

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 HD-SC sensor under axial strain; includes effects of the interrogator
Sensor lengths	1 to 5 m

Environmental and Physical

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	10 to 90 % RH Non-condensing
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

Applications

High fidelity model verification
FE model validation with 2D and 3D strain fields
Temperature mapping for batteries
Bonding and welding quality improvement
Multi-material joining evaluation
Embedded sensors for smart parts
Strain characterization of new materials and complex structures
In-situ process temperature profiling
Crack and defect detection in critical structures
Composite materials testing

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