Under long-term influence of high temperature and stress

the steam pipelineis in thermal power plants may result in creep damage

even in tube burst

threatening heavily safe operation of the power plant.For this

a new measuring system

which combines the virtual instrument technology with data-base technology together

has been put forward.Adopting non-contact type precise electric eddy-current transducer

the two-dimensional measurement of pipeline creep has been turned into slight displacement measurement with high precision under high temperature environment

realizing non-contact type non-destructive detection

and being connected through LAN interface into plant-level real-time monitoring information management system.The said measuring system can timely and accurately measure the creep of steam pipeline

predicting correctly the residual service-life of the steam pipeline

preventing different failures resulted from creep of pipiline under high temperature.