Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn

Interrogator Reads Arrays of Strain Sensors

May 2008
Technobis Fibre TechnologiesRequest Info
• four channels
• 19.3-kHz per sensor sampling frequency
• self-calibrating

Technobis_23082007256-bewerkt.jpgTechnobis Fibre Technologies BV has introduced a demultiplexing interrogator system named Deminsys for high-speed reading of multisensor arrays of fibre Bragg gratings (FBGs). The instrument measures strains to monitor the structural integrity of aircraft and ship hulls, wind-energy generators and civil engineering structures such as bridges and large buildings, providing early warning of hairline cracks.

The interrogator handles up to four optical channels, each typically having eight sensors. It has a maximum sampling frequency of 19.3 kHz per sensor with spectral spacing of 4 nm between sensors and wavelength-measuring accuracy of 2 pm. The standard spectral range is 830 to 870 nm, but others are available. The design is flexible, and it is possible to trade off sampling frequency and dynamic range against the number of FBGs per fibre. The self-calibrating capability allows the engineer on site to connect the interrogator by means of its FC/APC optical connectors to fibres permanently installed in the structure.

The instrument has an integrated microcontroller and data storage capacity as well as a Gigabit Ethernet interface. The user can store data for later transfer to a computer or can operate the device in continuous mode, in which the data streams to a PC for storage and display.

The interrogator measures 80 × 80 × 240 mm and weighs 800 g. It operates at temperatures from –20 to 50 °C and at humidity levels up to 80%. It consumes 14 W from a 12-VDC supply.


* Message:
(requirements, questions for supplier)
Your contact information
* First Name:
* Last Name:
* Email Address:
* Company:
Address 2:
Postal Code:
* Country:
Phone #:
Fax #:

Register or login to auto-populate this form:
Login Register
* Required

When you click "Send Request", we will record and send your personal contact information to the supplier by email so they may respond directly. You also agree that Photonics Media may contact you with information related to this inquiry, and that you have read and accept our Privacy Policy and Terms and Conditions of Use.
Communicationsdemultiplexing interrogator systemEuropemultisensor arraysProduct PreviewSensors & DetectorsTechnobis Fibre Technologies BV

Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2018 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,
x Subscribe to EuroPhotonics magazine - FREE!
Are you interested in this product?
When you enter your email address and click "Send Request", we will send your contact details to Technobis Fibre Technologies so they may respond to your inquiry directly.

Email Address:
Stop showing me this for the remainder of my visit