# What happens before a current burst?

Source: https://www.therness.com/videos/before-the-current-burst/
Language: en

Three starts from one recorded weld, compared on a common relative scale. The opening looks similar; the later pulses vary.

![What happens before a current burst?](https://i.ytimg.com/vi/mgheqk61axE/maxresdefault.jpg)

A short, focused look at the recorded welding current: the beginning of the burst is similar in these three examples, then the pulses that follow differ.

## What you see

- Three starts taken from one recorded weld, on the same relative scale.
- A similar opening in the three examples, then different later pulses.
- Slow-motion optical footage of the weld as independent context.

## How to read it

- It is a measured observation from the current record, not a weld-quality verdict.
- The optical footage is not a synchronized view of these current starts.
- Gaps in the record are left blank.

## Who it is for

Process engineers who want to compare the recorded shape of the current first, then ask what else the process needs to explain it.

## Where the recording comes from

The current record comes from [WeldTrace welding parameter monitoring](https://www.therness.com/welding-parameter-monitoring/). To see the same view on your own welding cell, ask for a WeldTrace demo.

## Related videos & products

- [Weld pool, thermal image and welding current, recorded during the same bead](https://www.therness.com/videos/three-sensors-same-weld-bead/)
- [WeldTrace](https://www.therness.com/products/therness-weldtrace/)
- [Welding parameter monitoring](https://www.therness.com/welding-parameter-monitoring/)
- [Welding monitoring system](https://www.therness.com/welding-monitoring-system/)

[Ask for a WeldTrace demo](https://www.therness.com/contact/?product=WeldTrace) [Back to video library](https://www.therness.com/videos/)