Bestech Australia presents FS 6500 FBG accelerometers, from FiberSensing. These single axis FBG accelerometers are a fibre optic version of the conventional accelerometer but completely passive, offering inherent insensitivity to environmental-induced noise. They are specifically tailored for applications requiring the measurement of low frequency and small amplitude accelerations. These new accelerometers were designed to allow outdoor installation under severe conditions and with no extra protection. The robust design of this sensor meets the IP68 protection standards and includes aluminium case and input and output fibre optic armour cables. It provides high accuracy and high resolution measurements, and total fibre optic design ensuring intrinsic immunity to electric sparks and EMI/RFI and no ignition risk.
Compatible with most standard FBG measurement units, the FS 6500 FBG accelerometers combine compact size and high resistance to corrosion and harsh environments with long-term reliability.
The high sensitivity and linearity of the accelerometers, as well as the flat frequency response and low transverse sensitivity of the new accelerometers make them suited to a large range of monitoring applications, such as ambient vibration monitoring of civil structures. They are also suitable for remote sensing, with it being possible to locate the sensor several kilometres away from the measurement unit. It offers intrinsic multiplex capability that allows the concatenation of a large number of sensors in a single optical fibre. These accelerometers are therefore particularly suitable for difficult-to-reach locations and large scale sensing networks. Accessories allow a compact, in series mounting of two or three accelerometers in transversal directions for measuring vibration simultaneously along multiple axes.