D E F Y I N G KEY ADVANTAGES • High definition strain and temperature measurement system for unprecedented visibility into a design’s performance • Low profile and flexible sensor can be embedded within composite structures and points • Corrosion resistant, dielectric and immune to EMI/RFI • An economical alternative to replace traditional point sensing systems • No degradation of measurement after high cycle count fatigue test PRODUCT HIGHLIGHTS I M P O S S I B L E ODiSI-B 5.0 Optical Distributed Sensor Interrogator The ODiSI is a 21st century measurement system specifically designed to address the test challenges of 21st century advanced materials and systems. The ODiSI provides more than 1000 strain or temperature measurements per meter of a single high definition fiber sensor. The high definition data can fully map the contour of strain or temperature for a structure under test. The sensor is flexible, low profile, requires no electrical source, and can be bonded to sharply curved surfaces, embedded within structures, or mounted directly to electrical surfaces. • Sensor lengths up to 20 meters and gage lengths as low as 1.3 mm • Two sensing options: High-Definition as standard and High-Speed Continuous Fiber Gratings (CFG) option for greater dynamic capability • User selectable modes allow configuration of sensor length, resolution, and acquisition rate An automotive frame is instrumented with fiber and then tested under load. Test data is then superimposed on the CAD model. www.lunainc.com | 3155 State Street, Blacksburg VA | Support phone: 1.866.586.2682 | [email protected] ODiSI-B 5.0 PARAMETER SPECIFICATION Mode of Operation 100 Hz 1 Sensor Type HD 250 Hz HS UNITS 23.8 Hz HD HS HD 50 Hz HS HD HS Sensor Configurations Maximum Sensor Length 10 5 2 - 10 5 20 - m Gage Length 5.2 5.2 5.2 - 1.3 1.3 5.2 - mm Gage Pitch2 2.6 2.6 2.6 - 0.65 0.65 2.6 - mm Measurement Performance - Strain Range3 ±10000 ±1400 ±10000 - ±10000 ±7500 ±10000 - µϵ Resolution <1 <1 <1 - <1 <1 <1 - µϵ Accuracy4 ±30 ±15 ±30 - ±25 ±35 ±25 - µϵ - < ±20 < ±10 < ±5 - µϵ ±0.55 ±0.35 ±0.10 0.4 - 0.8 - > 10 - Repeatability at zero strain < ±5 < ±5 < ±10 ±0.15 ±1.0 ±0.15 1.8 - 4 - > 10 - 220 200 220 - 220 200 220 - °C -40 -40 -40 - -40 -40 -40 - °C < 0.1 - < 0.1 - < 0.1 - < 0.1 - °C - - - - - - - - °C ±0.01 - ±0.01 - ±0.06 - ±0.01 - % Data Acquisition Rate10 100 100 250 - 23.8 23.8 50 - Hz Data Processing Rate11 5 100 22 - 1.25 23.8 2.5 - Hz 5 Repeatability across full strain range6 Dynamic Loading Rate HD (Based on 2m sensor length at ±1000µϵ)7 Dynamic Loading Rate HS (based on 2m sensor length @ ± 600µϵ)8 - % - Hz Hz Measurement Performance - Temperature Maximum Temperature9 (Based on standard sensor. Custom sensors available upon request.) Minimum Temperature (Based on standard sensor. Custom sensors available upon request.) Resolution Accuracy (consult factory) Repeatability Data Acquisition / Processing Rate Physical & Environment ODiSI-B Standoff Dimensions PC Controller 50 - m 14.42 (36.6) x 13.60 (34.5) x 6.55 (16.6) 11.4(29) x 3.7(9.3) x 12.3(31.2) In (cm) 17.1 (7.8) 11.7(5.3) Lb (Kg) 45 255 W °C Weight Power Consumption Operating Temperature Range 10 - 35 5 - 35 Storage Temperature Range 0 - 40 -40 - 65 °C < 80 non-condensing 5 - 95 non-condensing %RH Class 1 Laser - Relative Humidity (non-condensing) Laser APPLICATION NOTES 1. Base configuration includes one mode of operation. Additional modes are upgrade options. 2. Gage pitch refers to distance between centers of consecutive gages. 3. Based on an effective spectral range of +/-12000 pm, and practical limitations of fused silica sensor fibers. 4. Accuracy reflects ODiSI measurements compared to NIST traceable extensiometer meaurements. Data based on average of 150 scans at each of seven increments of strain, from 0 to maximum strain. 5. Repeatability at zero strain refers to offset from zero with no strain applied. NO filtering is applied. 6. Repeatability across strain range refers to average repeatability over full strain range. Repeatability is measured and reflects 2σ standard deviation from the mean with sample size of 150 scans. NO filtering is applied. 7. HD dynamic performance based on 2 meter HD sensor bonded to coupon and tested in load machine programmed for range of amplitude vs oscillating frequency. Data shown is oscillating frequency limit for ±1000 µϵ amplitude. Limitation determined by HD sensing. 8. HS dynamic performance based on 2 meter HS CFG sensor bonded to coupon and tested in load machine programmed for range of amplitude vs oscillating frequency. Data shown is oscillating frequency limit for ±600 µϵ amplitude. Limitation shown is determined by load machine amplitude vs frequency capability. Expected dynamic performance is ½ sampling frequency depending on strain amplitude. 9. Based on material properties of standard sensor construction. For extended temperature ranges consult factory. 10. Data acquisition rate refers to the rate at which the underlying optical data supporting strain and temperature measurements is acquired. 11. Data processing rate refers to the rate at which the conversion of optical data to strain or temperature measurements occurs and can be displayed or logged. www.lunainc.com | 3155 State Street, Blacksburg VA | Support phone: 1.866.586.2682 | [email protected] LTODiSIB Rev.12 07/19/2016