Measuring method and measuring arrangement

A measuring arrangement for locating an imperfection in an electrically conductive material, the measuring arrangement comprising:

• an electric signal generator configured to apply an electric input signal to the electrically conductive material such that the electrically conductive material acts as an antenna and thereby transmits an electromagnetic output signal having a frequency spectrum comprising a contributing frequency corresponding to the imperfection within the electrically conductive material;
• an antenna detection system configured to the receive the electromagnetic output signal, wherein the antenna detection system is configured to probe the frequency spectrum of the electromagnetic output signal as a function of at least one of position and direction;
• and
• an analysis device configured to locate the imperfection within the electrically conductive material by analyzing a spatial origin of the contributing frequency within the frequency spectrum of the received electromagnetic output signal;
• wherein the antenna detection system comprises at least one of:
• at least one of an antenna array and multiple antennas distributed in space, wherein the antenna detection system is configured to probe the frequency spectrum of the electromagnetic output signal by determining a direction where the contributing frequency is coming from, and
• at least one antenna configured movable in space, wherein the antenna detection system is configured to probe the frequency spectrum of the electromagnetic output signal by moving the at least one antenna in space and determine the electromagnetic output signal at different locations.

A measuring method for locating an imperfection in an electrically conductive material, the method comprising:

• applying an electric input signal with an electric signal generator to the electrically conductive material such that the electrically conductive material acts as an antenna and thereby transmits an electromagnetic output signal having a frequency spectrum comprising a contributing frequency corresponding to the imperfection within the electrically conductive material, wherein the signal generator is electrically connected to the electrically conductive material;
• receiving the electromagnetic output signal with an antenna detection system, wherein the antenna detection system probes the frequency spectrum of the electromagnetic output signal as a function of at least one of position and direction;
• and
• locating the imperfection within the electrically conductive material by analyzing with an analysis device a spatial origin of the contributing frequency within the frequency spectrum of the received electromagnetic output signal.

A measuring arrangement for locating an imperfection in an electrically conductive material, the measuring arrangement comprising:

• an electric signal generator configured to apply an electric input signal to the electrically conductive material such that the electrically conductive material acts as an antenna and thereby transmits an electromagnetic output signal having a frequency spectrum comprising a contributing frequency corresponding to the imperfection within the electrically conductive material, wherein the signal generator is electrically connected to the electrically conductive material;
• an antenna detection system configured to the receive the electromagnetic output signal, wherein the antenna detection system is configured to probe the frequency spectrum of the electromagnetic output signal as a function of at least one of position and direction;
• and
• an analysis device configured to locate the imperfection within the electrically conductive material by analyzing a spatial origin of the contributing frequency within the frequency spectrum of the received electromagnetic output signal.