Systems and methods for testing internal bonds

A method of testing an internal bond of a test object having a metallic portion corresponding to a test surface, the method comprising:

• coupling a transducer assembly to the test surface, the transducer assembly comprising:
• a magnetic portion comprising at least one magnet and an opening therein oriented toward the test surface;
• a power supply configured to provide an electric current that passes through the transducer assembly and the test object;
• links configured to couple the power supply to the transducer assembly and the test object;
• a body disposed within the opening of the magnetic portion, the body having a conductive portion configured to pass the electric current from the power supply near a body surface oriented toward the test surface, the body having a cavity therein oriented toward the test surface;
• a tensile pulse transmitter disposed within the cavity of the body and configured to transmit a tensile pulse into the test object;
• and
• a pulse and current control unit configured to control the tensile pulse transmitted by the tensile pulse transmitter;
• providing, via the magnetic portion, a magnetic field oriented along the test surface;
• providing, via the power supply under control of the pulse and current control unit, the electric current through the conductive portion of the body in a first direction and through the test object in a second direction that is opposite the first direction, whereby a force urging the transducer assembly and the test object toward each other is generated responsive to the magnetic field and the current;
• and
• transmitting, via the tensile pulse transmitter, a tensile pulse into the test object.

A method of testing an internal bond of a test object having a metallic portion corresponding to a test surface, the method comprising:

• generating a magnetic field;
• providing, via a power supply coupled via links to a test device and the test object, an electric current that is passed through a test device in a first direction and passed through the test object in a second direction that is opposite to the first direction to generate, in cooperation with the magnetic field, a force urging the test device and the test object toward each other;
• and
• transmitting a tensile pulse into the test object to test the internal bond.