Interrogators

High performance interrogator

Our BSI interrogator ensures high performance with up to 64 channels

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, …

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!

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.

Temperature
Strain
Torque & load
Tilt
Vibration
Gas detection

Main optical parameters

Wavelength range (nm)

1510-1590

Resolution (pm)

<1

Number of channels

8-16-64

Measurement frequency

1 channel: 3kHz

8 channels: 0.5Hz

µBSI

The µBSI is a smart and lightweight device that can be battery-operated. Based on a tunable laser source, 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 is 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 communicate through Bluetooth with a smartphone/tablet.

Strain
Torque & load
Tilt
Vibration

Main optical parameters

Wavelength range (nm)

1545-1554

Resolution (pm)

<1

Number of channels

1

Measurement frequency (Hz)

10 kHz

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 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 PFTE 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.

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 capillarity

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.


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 solution easy-to-install

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.

Gas detection

Specifications

Central Wavelength (nm)

1510-1595

Grating length (mm)

3-5

Operating temperature range (°C)

-20 / 100

Sensitive layer

Catalytic sol-gel coating

Packaging

Aluminium

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

Gas detection
  • 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

FBG sensors advantages

Fully passive system, multiplexing capabilities and much more

Gas sensors

BSGS dedicated for environmental sensing

Mass production capabilities, calibrated output

Compact interrogator: AirQI

Our platform allows the monitoring of different gases

BSGS

Gas sensors rely on the semiconductor technology and enable cost-effective point measurements.

They are provided with a dedicated read-out unit – the AirQI platform – enabling their thermal driving and the processing of the sensor signal into a calibrated output (gas concentration in ppb or ppm level). A standard analog voltage output directly proportional to the gas concentration in ambient air is produced, allowing its easy integration in custom applications

The interrogator is provided with a user-friendly interface developed with Python. The interface can be fully customizable according to customer requirements.

B-SENS gas sensors can reliably measure nitrogen oxides (NOx), formaldehyde (CH2O), ethanol (EtOH), ozone (O3), carbon monoxide (CO), ammonia (NH3) and other flammable gases in the sub-ppm range

IoT platform

B-SENS connect

B-SENS Connect is the remote interface that B-SENS has developed for its smart sensing solutions

It provides interpreted data in graphical views to end users. The interface look-a-like can be adapted depending on customer specifications.

Event management services can be implemented, making the platform suited for applications like structural health monitoring or environmental sensing.

Secured connections are granted through B-SENS servers.