Resumen
Inspection system for welding connecting bolts through its acoustic spectrum. The invention is based on the comparison of the vibration frequency itself measured experimentally with the own frequency obtained analytically, using an impedance head (1) for the measurement of the vibration frequency, this head of impedance being connected to an amplifier of acceleration-exciter-analyzer frequencies (4) and complementing with a computer (5) with software to enter the data of the connector pins (2) whose inspection is intended, these being welded to a metallic profile (3) that is complemented with pieces of wood (6) that compress said profile (3) to reduce as much as possible that the vibration of the metal profile (3), against which the connecting bolts (2) are welded, affects the measurement of the own frequency of vibration of the respective pin (2) object of the inspection. (Machine-translation by Google Translate, not legally binding)