System for obtaining physical parameters quu00ecmicos external to a duct by means of a pig

摘要

System for obtaining physical parameters quu00ecmicos external to a duct by means of a pig is the present invention of a system for physico chemical parameters external to a duct, which are used, for example, to estimate the lifetime of these ducts, or P. To estimate the deadlines or maintenance routines and the operation of these ducts.The goal above is achieved by means of a system that comprises a plurality of external measurement devices (1) which are installed spaced about the outer surface of the duct (d) by means of fixation.Each external device (1) comprises a measurement instrumentation based on sensors (12) dedicated to the registration of parameters of interest, a sensor mechanism (13) of clock operation and a first power unit (14).Inside the duct (d), a pig (2) carries a unit electronics also dedicated and capable of emitting, when, on the occasion of its passage through an external device measurement (1), an energy pulse, capable of activating the latter so that it is made the transmission of the data of its if Nsores (12) of the parameters and.The pig (2) to collect these data through the receiving unit (22) and store them in a data storage unit (23).