Posted to News on 10th Dec 2010, 12:18
PZS accelerometers for wind turbine condition monitoring
Sensonics is expanding its range of PZS accelerometers to provide for vibration monitoring in wind turbines. Over the last five years the proven shear mode constructed PZS accelerometers have been supplied for many applications, including wind turbine monitoring. This enhancement of the product range provides a frequency response down to 0.1Hz and permits effective monitoring of both the wind turbine main shaft and input gearbox bearings below rotational speeds of 20RPM. This is important because wind turbine condition monitoring is an industry requirement.
As with any rotating machinery in a critical application, the monitoring of vibration plays an effective role in the early detection of mechanical problems on the machine. The PZS accelerometer response is suitable for measuring vibration across the full wind turbine machine train. This is for not only the low-frequency front end, but also the planetary gearbox stages and generator, providing an upper frequency response in excess of 10kHz.
The shear mode sensor is electrically and thermally isolated from the main accelerometer housing, which minimises the effect of electrical interference on the measured signal and the impact of thermal changes. These are key factors behind the successful implementation of low-frequency accelerometers.
Available in straight and side-exit configurations with mounting threads to suit most applications, the PZS accelerometers are supplied with either a two-pin connector or integral cable, with protection up to IP68.
Follow the link for more information about PZS accelerometers from Sensonics.
