Data acquisition system

High performance interrogator

Different specifications available: BSI108, 116, 132 & 164.

Customizable interface

Our interface for the BSI is optimized according to YOUR specifications

Designed for many applications

Railway traffic, structural health, condition monitoring, temperature sensing, …

Multi-channel interrogator

Our BSI interrogator ensures high performance with up to 64 channels (more than 1920 sensing points).

BSI suite

Our spectrometer-based BSI-1XX interrogators have independent optical channels to measure up to 40 wavelength-division-multiplexed fiber Bragg gratings (FBGs) cascaded per optical channel at high speed.

Standard BSI-108, BSI-116, BSI-132 and BSI-164 units feature 8, 16, 32 and 64 independent channels, respectively. Several hundreds of sensors can then be interrogated with a single device!

BSI-108 and BSI-116 units can be assembled in a benchtop frame or in a 19-inch rack. Other units are exclusively provided in a 19-inch rack. In terms of optical connectors, FC/APC or SC/APC are standard.

This suite of interrogators is suitable for static and dynamic applications like temperature sensing, structural health monitoring or condition monitoring.

Such devices are provided with a fully customizable interface that can be optimized depending on customer’ specifications.

Main optical parameters

Wavelength range (nm)

1510-1590

Resolution (pm)

<1

Number of channels

8-16-32-64

Measurement frequency

1 channel: 3kHz

8 channels: 0.5Hz

µBSI (prototype version)

Under development, available soon

The µBSI is a smart and lightweight device based on a tunable laser source swept over ~10 nm. It is specifically developed to provide a cost-effective solution for up to 4 wavelength-division-multiplexed FBGs sensors cascaded along a single optical fiber. It will be the most competitive solution for a low amount of sensing points!

This interrogator is suitable for static and dynamic applications like temperature sensing, structural health monitoring or condition monitoring.

It is provided with a dedicated interface and can be configured to communicate through Bluetooth with a smartphone/tablet.

Smart & lightweight interrogator

A small device that can be battery-operated

Dedicated standalone software

We provide a fully customizable interface developed with Python

Easy-to-use and smart device

Wireless communication through Bluetooth

FBG

B-SENS has accessed to up-to-date facilities to manufacture Bragg gratings in different single-mode fiber types.

Uniform and tilted Bragg gratings can be produced by the phase mask technique or the Lloyd mirror configuration.

Uniform gratings can be used as filters in telecom applications or for temperature and strain sensing.
Tilted gratings enable refractometric and multiparameter sensing.

The following specifications can be reached:
  • Grating length up to 1 cm
  • Grating reflectivity up to 95 %
  • 3-dB bandwidth down to 200 pm
  • Central wavelength in the range [1490 nm – 1620 nm]
  • For uniform FBGs, max 10 wavelength-division-multiplexed gratings per fiber
  • For tilted FBGs, max 1 grating per fiber and tilt angle up to 10°
These gratings can be supplied bare or packaged and/or connected (FC/APC or SC/APC).

FBG sensors

Sensors up to 1050°C

Our temperature sensors are very efficient in harsh environment

Diverse packagings available

From PTFE tubing to stainless steel capillary for very high temperature

More than 20 years of expertise

B-SENS provides a unique solution to meet your requirements

(High) Temperature

FBG temperature sensors are suited for a large range of applications where quasi-distributed static or dynamic measurements are essential. They are provided with PTFE or stainless steel capillary tubing, depending on the target temperature range.

For high temperature sensing, a safe & continuous use is ensured up to 650 °C. Sensing up to 1050 °C can be achieved depending on the actual conditions.

These temperature sensors ensure intrinsic immunity to electric sparks and electromagnetic and radio-frequency interferences. They combine compact size, high resistance to corrosion and harsh environments, and a long-term reliability.

A single optical fiber can replace tens of temperature probes!

Specification

Temperature

High Temperature

Sensitivity (pm/°C)

~11

Fiber coating layer

Acrylate

Polyimide

Acrylate

Operating range temperature (°C)

-20/120

-20/250

-20/650 (up to 1050)

Packaging

PTFE/Peak

Stainless steel capillary

Strain Monitoring

FBG axial strain sensors are suited for a large range of applications ranging from structural health monitoring to condition monitoring.

They are either embedded in the structures (concrete, composite, …) to monitor or glued in their surface.

These sensors ensure quasi-distributed static or dynamic strain measurements. They are intrinsically immune to electric sparks and electromagnetic and radio-frequency interferences. They combine compact size, high resistance to corrosion and harsh environments, and a long-term reliability.

A single optical fiber can replace tens of strain gauges!

Specifications

Sensitivity (pm/µƐ)

1.2

Operating range temperature (°C)

-20/120

On-site installation

Glued or other packaging available

Strain sensor tested in our facilities

Extensive lab testing environment

Straightforward on-site installation

FBG placed in specific packaging or directly glued on the cleaned surface

H 2 sensor with customizable options

Our H 2 sensor is packaged in an original metal case and offers unique customization according to your requirements

An unique and easy-to-install solution

H 2 FBG sensors can be placed easily

Hydrogen detection

Patent : Gas Sensor UK0707303.4

Hydrogen sensors are based on a fiber Bragg grating (FBG) coated with a specific sensitive layer that undergoes an exothermic reaction in the presence of hydrogen in air.

Theses sensors are provided in a metal case packaging also comprising a bare FBG to get a temperature-compensated response.

The technology is patented (EP2140249) and is designed to detect low concentration molecular hydrogen leakages (limit of detection: 0.1 % of H2 in wet air at ambient temperature).

Other advantages of this solution are its small dimensions, multiplexing capabilities and numerous customization options.

Disclaimer: this device is for research purposes only.

Specifications

Central Wavelength (nm)

1510-1595

Grating length (mm)

3-5

Operating temperature range (°C)

-20 / 100

Sensitive layer

Catalytic sol-gel coating

Packaging

Aluminum

Detection limit (%H2)

0.1

Early flame detector

Patent : Infrared Sensor GB10042150.8

Early flame detectors are based on a fiber Bragg grating (FBG) coated with a specific sensitive layer that is sensitive to the infrared radiation. Theses sensors are provided in a metal case packaging also comprising a bare FBG to get a temperature-compensated response.

The technology is patented (EP2547993) and has been extensively tested according to the EN 54-1 norm. The IR sensor can detect a ~1 dm 3 fire at a 6-meter distance within a few tens of seconds, which is optimal for use in wide infrastructures including parkings and tunnels.

Other advantages of this solution are its small dimensions, multiplexing capabilities and numerous customization options.

Disclaimer: this device is not certified

  • Fast response
  • A small lower limit of detection
  • Multiplexing capabilities
  • Small and customizable device

A customizable early flame detector

A home-made packaging according to your requirements

B-SOFT

Customizable interface

Our interface for the BSI is optimized according to YOUR specifications

Meeting your expectations

Our interfaces are adapted to your needs

B-SENS data acquisition systems are provided with an executable software that processes the raw data in real time and yields the measurands (temperature, strain, gas concentration, …). This software generates .txt files with the processed data as well as visuals (dashboard).

Data communication and cloud computing can be provided.

This software can be adapted to meet customer specifications.