EVO – Evolution Platform

Category: Geotechnical & Civil Engineering Instrumentats

HIGH-ACCURACY

STATIC OR DYNAMIC

PLUG & PLAY, MODULAR

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Description

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