Device and method for detecting an anomaly in an assembly of a first and a second object

A method for detecting an anomaly in an assembly of a first tubular object and a second tubular object of electrically conductive material forming an intermediate annular space between them, the method comprising:

• providing a device comprising a transmitter/receiver arrangement for generating an electromagnetic field in an electrically conductive object, and for measuring a signal indicative of an eddy current which is generated in the assembly by the electromagnetic field;
• arranging the device in a measurement position within the intermediate annular space;
• activating the device so as to receive a signal indicative of an eddy current in the assembly;
• and
• comparing the signal with a norm so as to detect if an anomaly is present at the measurement position;
• wherein the transmitter/receiver arrangement is provided with a fixation means which is operated to fix the transmitter/receiver arrangement at a measurement position with respect to the assembly at least during activating of the device;
• wherein the fixation means comprises a resilient member which is operated to press the transmitter/receiver arrangement against the first object and away from the second object.