HBM optical interrogators are specifically designed to measure the values generated by Fiber Bragg Gratings (FBG) sensors.
FBG sensors are easy to install, electromagnetically safe and can also be used in highly explosive atmospheres, but having the right interrogator in place is important to retrieve the most accurate measurements.
Suitable for large scale sensing networks, HBM FiberSensing interrogators provide precise and high resolution static and dynamic measurements 24/7 through reliable software interfaces.
Compatibility with catman® software enables hybrid optical/electrical sensing to be easily managed.
HBM FiberSensing interrogators are available in standard, rack-mountable and portable models. Choose below from either the Industrial or Portable BraggMETER for more information.
What is an optical interrogator?
An optical interrogator, also known as measurement unit or data acquisition system, is an optoelectronic instrument, which allows the reading of optical fiber Bragg grating (FBG) sensors in static and dynamic monitoring applications.
An interrogator can measure a large sensing network composed by various types of sensors (such as strain, temperature, displacement, acceleration, tilt…) connected along multiple fibers, by acquiring data simultaneously and at different sampling rates.
During data acquisition, the interrogator measures the wavelength associated with the light reflected by the optical sensors and then converts it into engineering units.
The readings are then transmitted by the interrogator using different communication protocols such as Ehernet, PROFIBUS or CANbus, for archiving, analysis or exporting using a software interface.