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AssigneeClamp On AS
InventorsFrancesco Simonetti, Geir Instanes
Estimating the term…
A method and an apparatus for guided-wave tomographic measurement or monitoring of wall thicknesses of the walls of pipes and similar structures are disclosed. The method is characterized in that use is made of transducers (205) preferably positioned in at least two groups of a plurality of transducers (305′-305″) arranged in a spaced apart pattern on the external surface of the structures, the transducers individually transmit ultrasound signal into the pipe wall 204, in that each ultrasound signal propagates within the pipe wall 204 from the transmitting transducer and is received at one or several receiving transducers, and the received ultrasound signal is converted to an electrical signal by the receiving transducers and recorded by the transceiver (20). Measurements are performed by using a further plurality of transducers (406, 506) that are placed apart from the two groups of a plurality of transducers (305′-305″). There is also disclosed a method for guided-wave tomographic measurement or monitoring of wall thicknesses in the walls of pipes and similar structures producing a set of measurement data by using the apparatus.
Method for guided-wave tomographic measurement or monitoring of wall thicknesses of the walls of pipes and similar structures, wherein characterized in that use is made of transducers preferably positioned in at least two groups of a plurality of transducers arranged in a spaced apart pattern on the external surface of the said structures, said transducers individually transmit ultrasound signal into the pipe wall, in that said ultrasound signal propagate within the pipe wall from the said transmitting transducer and is received at one or several receiving transducers, and said received ultrasound signal is converted to an electrical signal by the receiving transducers and recorded by the a transceiver (20), and further characterized in that measurements are performed by using a further plurality of transducers that are placed apart from the said two groups of a plurality of transducers and in that said further transducers are arranged in at least one line or curve parallel to the length axis of the examined structure between the two groups of transducers.
Apparatus for guided-wave tomographic measurement or monitoring of wall thicknesses in the walls of pipes and similar structures comprising transducers positioned in at least two groups of a plurality of transducers are arranged in a spaced apart pattern on the external surface of the pipe, and a transceiver unit for ultrasound signal generation and acquisition, and characterized in that
Dependencies are inferred from the claim text.