When choosing how to buy a 3D camera for your organisation, there are three very important things you need to consider: Dimension, Resolution and Movement.
Dimension of the object
What is the size and shape of the object, or objects, that you’re looking to measure? Is it the size of a pallet, or a penny? You need to know this before anything else because the answer will define the choice of sensor that you’ll need to use to do it.
Resolution of the measurement
Next, you need to consider the quality of resolution you need from the scan. Are you looking to measure something at the ‘sub-micron’ level – such as aircraft engine components, where tolerance levels are exceptionally strict – or will a tolerance level of a few millimetres be acceptable, such as on a parcel line in a logistics department?
Movement of the object
How is the object moving? Is it static or moving, in a controlled or uncontrolled way?
If it’s static, you can do 3D area scans to capture a full 3D image in one go.
If it’s moving in a controlled way – on a tightly packed conveyor belt – you can use what’s called Line scan to build up an image that’s as long as you like. For example, if you’re inspecting long lengths of pipe in one pass.
If it’s moving in an uncontrolled way – such as a parcel line – you have to use area scan.
New possibilities for vision inspection
These three questions will define the sensor that you need to use to take the measurement. That sensor will then create a point cloud – a series of x, y and z coordinates – which then allows you to make the inspections you need.
Inspections such as:
- Dimension measurements
- Damage and orientation of a parcel, which then tells a robot how and where to pick it up without crushing it
- Automated loading of delivery trucks
- Inspecting packs for damage or completeness – such as shampoo
- Volumetric measurement – to show the volume that each parcel takes up in your logistics process
- Baggage handling possibilities.
Need more advice?
Get in touch and tell us your 3D inspection challenge.