F1 is an ultrasonic device designed for quality control and NDE of resistance spot welds. F1 is a portable and simple-in-operation device capable of producing images of spot weld’s internal structures. In addition to weld image, this device performs estimation of the nugget diameter and compares it with predefined minimum nugget requirements.

Using the unique technology of multi-channel ultrasonic matrix transducer, F1 collects data from the surface and from the internal structures of the nugget. Special algorithms use this data to reconstruct the image of the spot weld and estimate the average diameter of the nugget area in real time.