- #1

some bloke

- 279

- 98

- TL;DR Summary
- I have 2 induction heaters which are exhibiting different results when heating the same product. The 2 are different, having different sized coils, and I would like to work out the strength of the induced field in each of them (with a common item being heated) to establish whether they are actually even close to one another.

These are old machines which no-one really understands. This is my first step in trying to understand them better!

As the summary says:

I have 2 induction heaters which are exhibiting different results when heating the same product. The 2 are different, having different sized coils, and I would like to work out the strength of the induced field in each of them (with a common item being heated) to establish whether they are actually even close to one another.

The coil is a single coil, which is aligned perfectly flat. the item being heated is a ring shape, and in theory is a consistent distance from the coil. The coils both have a gap of circa 10mm where they enter and leave, forming the majority of a circle.

The information I am looking for is:

1: What data will I need to collect about the coils? I am assuming:

2: What formulae do I need to perform this comparison?

I have done some research but nothing seems to quite match what I am trying to establish!

Much Appreciated!

I have 2 induction heaters which are exhibiting different results when heating the same product. The 2 are different, having different sized coils, and I would like to work out the strength of the induced field in each of them (with a common item being heated) to establish whether they are actually even close to one another.

The coil is a single coil, which is aligned perfectly flat. the item being heated is a ring shape, and in theory is a consistent distance from the coil. The coils both have a gap of circa 10mm where they enter and leave, forming the majority of a circle.

The information I am looking for is:

1: What data will I need to collect about the coils? I am assuming:

- Diameter of the coil
- thickness of the coil (they have a square cross section)
- wall thickness of the coil (they are pipes filled with cooling water) to then calculate;
- Cross sectional area of the coil.
- Distance from the coil to the ring to be heated (which is inside the coil, in the same orientation; 2 concentric loops)
- Power inputted into the coil
- Frequency should be the same as this is relevant to the material to be heated, would this affect the intensity difference if both coils are the same?

2: What formulae do I need to perform this comparison?

I have done some research but nothing seems to quite match what I am trying to establish!

Much Appreciated!