MS Interrogator

Datasheet

Description

The MS optical sensing instrument is an economic commercial grade interrogator, featuring 1 monitoring channel, and one additional standby monitoring channel for system redundancy. Enclosed in a 1U rack mount field deployable enclosure, the instrument can be operated in full spectrum and in sensor peak detection modes. The MS is optimized for static measurements of up to 30 Fiber Bragg Gratings (FBG) based sensors. Sensor capacity can be greatly expanded with FSI’s 1xN Serial MEMS Optical Switches.

Our family of rugged M Series Interrogators is used extensively in civil engineering, marine, railways, roads, energy, geotechnical, industrial, security, medical, and many other commercial applications. This economy model is specifically useful for monitoring slow changing events in civil engineering, geotechnical engineering, mining, energy, and R&D programs. The industrial grade design scales well for volume production.

Benefits

Repeatability, accuracy, and dynamic range: The MS Interrogator provides measurements across its wavelength scanning range of 40nm. Using US patented laser calibration technology, the instrument features +/- 2pm repeatability, +/-10pm accuracy, and 25dB dynamic range with automatic gain and threshold control adjustments. Manual settings option for thresholds and gain stages also included.

Top reliability: The MS Interrogator is based on a semiconductor tunable laser that has been deployed in large volume in various field applications and features the world’s lowest MTBF. The interrogator has no movable parts and no tunable filters, which enables top reliability over the standard temperature range of -15C to +55C. The MS is suitable for use as part of a very rugged and reliable sensing system.

Adaptive to more types of sensors: The integrated electronics and embedded software allow the user to quickly adapt the instrument’s performance parameters to fit many different sensor configurations. Designed to monitor many types of sensors from narrow bandwidth (100pm) FBGs used pressure sensors, to wide bandwidth (3.0nm) FBGs used in bio-sensing. Hardware implementation of peak tracking algorithms for FBG sensors included. The laser output power is <7 dBm (5mW). Performance is maintained even with 20dB optical power loss.

Systems and network ready: On-board computer and standard Ethernet communications.

Lowest Cost and High Quality: The MS is based on the company’s solid state instruments platform and it has been optimized to address applications demanding the lowest cost while maintaining the quality and reliability of a high quality instrument. Expandable for up to 256 channels.