.png)
SMARTEC Fabry-Perot fiber-optic gauges are designed around a Fabry-Perot interferometer (FPI). An FPI consists of two mirrors facing each other, the space separating the mirrors being called the cavity length. Light reflected in the FPI is wavelength-modulated in exact accordance with the cavity length. FPI gauges convert strain, temperature, pressure and displacement into cavity length variations. FISO’s patented white-light cross-correlator offers a unique and powerful way to make absolute Fabry-Perot cavity length measurements with astonishing accuracy and linearity, providing consistency time after time.
Evolution chassis footprint, communication capabilities and speed make it the ideal tool for laboratory and in site test environments. The evolution chassis can house different module types with different channel capabilities to combine results from a single acquisition source. Module capacities, communication ports, and overall width specifications differ from one model to the other.
USB communication interface is available on all chassis. Evolution software enables manual configuration and data acquisition up to 5 k samples/sec. External data acquisition system is required for higher acquisition rate > 5k samples/sec (full bandwidth via analog output connectors).
Evolution modules are compatible with SCAI intelligent connectors; these connectors contain an EEPROM with sensor calibration parameters for automatic configuration. Evolution platform is a modular concept (DIN-rail), upgradeable and expandable
| Technical features | FPI-HR (2X) Module | FPI-HS Module |
| Number of channels: | 1 or 2 (parallel) | 1 |
| Sampling rate: |
250 Hz (1 channel) 125 Hz ( 2 channels) |
15 kHz |
| Analog output: | 0-5V (optional 4-20 mA) / 16 bits resolution | 0-5V (optional 4-20 mA) / 16 bits resolution |
| Analog output delay response: |
8ms (1 channel) 16ms (2 channels) |
130µs |
| Connector: | SCA or SCAI Plug and Play intelligent connector | SCA or SCAI Plug and Play intelligent connector |
| Fiber typology: | MMF 62.5/125 µm | MMF 62.5/125 µm |
| Strain range | ± 1000µ? to ± 5000µ? sensor depending | ± 1000µ? to ± 2500µ? sensor depending |
| Strain resolution: | ± 0.01% | 0.03% to 0.05% |
| Temperature range: |
R1: -40°C to 300°C ± 1°C R4: 25°C to 45°C ± 0.25°C R5: -10°C to 120°C ± 0.40°C |
n/a |
| Temperature resolution: | 0.01°C | n/a |
| Pressure range: |
0 to 2 psig ± 0.5% (FOP-MA) 0 to 1000 psig ± 0.05% (Compact pressure) 0 to 3000 psig ± 2% (FOP-MHP) 0 to 7000 kPa ± 0.25% (FOP Piezometers) |
0 to 2 psig ± 0.5% (FOP-MA) 0 to 1000 psig ± 0.05% (Compact pressure) n/a 0 to 7000 kPa ± 0.25% (FOP Piezometers) |
| Pressure resolution: | ±0.05% of full scale | ±0.05% of full scale |
| Displacement range: | 0 to ~ 15 mm ± 0.02 mm | n/a |
| Displacement resolution: | 0.002 mm | n/a |
| Working distance from sensor: | 1 km |
a Accuracy includes reproductibility (sensor/module exchange), repeatability and hysteresis, non-linearity, scale error, offset error, conditioner temperature compensation error. Pressure: Accuracy at room temperature.
| Technical specifications | FPI-HR (2X) Module | FPI-HS Module |
| Operating temperature: | 10°C to +50°C | 10°C to +50°C |
| Storage temperature: | -30°C to +80°C | -30°C to +80°C |
| DC Power: | 24V | 24V |
| Power consumption | 5 Watts | 12 Watts |
| Dimension (HxWxD): | 114.5 x 303.5 x 365.7 mm | 114.5 x 303.5 x 365.7 mm |
| Weight: | 7 kg | 7 kg |
| Communication / via EVO chassis | USB 2.0 | USB 2.0 for acquisition rate up to 5 kHz |
| Communication / TS 35 DIN RAIL | RS-232 & RS-485 + Analog output | RS-232 & RS-485 + Analog output (SMA) for acquisition rate > 5 kHz |
| LED | Sensor signal and communication diagnostic |
Chassis & Rack Mount
| Technical features | EVO-SD-2 Chassis | EVO-SD-5 Chassis | EVO-RM-8 Rack-Mount |
| Communication: | USB | USB | USB |
| Data logging: | Via computer | Via computer | Via computer |
| Number of modules: | Up to 2 | Up to 5 | Up to 8 |
| Power supply: | 24 VDC 70 W | 24 VDC 70 W | 24 VDC 150 W |
| Evolution software: | Included | Included | Included |
| Maximum rate of acquisitionb: | 5k samples / sec. total | 5k samples / sec. total | 5k samples / sec. total |
| Dimensions | W: 133 x H: 177 x D: 156mm | W: 269 x H: 177 x D: 156mm | W: 483 x H: 132 x D: 175mm |
b To divide by the quantity of FPI modules connected on the chassis. Analog output is available directly on the reading modules, offering full acquisition rate; for example FPI-HS plugged on analog is at 15k samples / sec
ORDERING INFO
EVO—Evolution Platform—Accessories and Ordering Information
- Evolution FPI-HR single channel high resolution fiber optic signal conditioner; up to 250 Hz
- Evolution FPI-HR dual channel high resolution fiber optic signal conditioner; up to 125 Hz
- Evolution FPI-HS single channel high speed fiber optic signal conditioner; up to 15 kHz
- 15.2060.cc Evolution SD-2b chassis for up to 2 FPI modules
- 15.2060.cc Evolution SD-5b chassis for up to 5 FPI modules
- 15.2060.cc Evolution RM-8b rackmount chassis for up to 8 FPI modules
- I-EVO EVOLUTION USB communication BUS module for TS 35 DIN RAIL (no chassis)
- AC Adapter – Input:100-240V 1.5A – Output: 24V 70W 2.5mm R/A
- Power Cord 220V European Type 92-2525-250BKH
- Terminal Blocks (Din rail) ME – 2 (two) Blocks for an FPI module
- USB Cable type A to type B (2 meters)
- Pin contact interface for TS 35 DIN RAIL (no chassis)
- Extension cables – Laboratory cables and rugged cables (contact Smartec)
- EasyThrough and Patchcords (contact Smartec)
- EVOLUTION Software
b including AC Adapter, Power Cord, I-EVO USB communication module, Terminal Blocks, USB cable and EVOLUTION Software
Compatible Fabry Perot Sensors Available:
- FOS Fiber Optic Strain Gauge
- SFO-W Fiber Optic Weldable Strain Gauge
- EFO Embedded Fiber Optic Strain Gauge
- FOT-L Fabry Perot Temperature Sensor
- FOP-MA Acoustic Pressure Sensor
- FOP Compact Pressure Sensor
- FOP Piezometer
- FOP Micro PZ
- TPC Fiber Optic Total Pressure Cell
- FOD Fiber Optic Displacement Sensor
