Transparent packs
Backlighting or structured illumination separates the visible fill boundary from the container.
Fill-level inspection ›
Automated liquid inspection
Liquid Fill-Level Inspection Systems UK
Vision systems for liquid fill-level inspection, overfill and underfill detection in bottles and jars, with reject integration and filler trend monitoring.
Application-led inspection
Check every liquid fill without slowing the line.
Liquid products introduce bubbles, foam, meniscus variation and container reflections. A dependable system controls the view and illumination, tracks every pack and applies limits appropriate to the process—not just a single pixel measurement.
Typical checks
✓Underfilled and overfilled bottles or jars
✓Missing or substantially incomplete fills
✓Liquid boundary, foam band or product presence
✓Repeatable decisions across saved pack recipes
✓Optional cap, closure, label and code checks
✓Confirmed removal of rejected containers
How it works
A stable image in changing production conditions
We select the camera position, optics and lighting around the container material, fill appearance and required tolerance. The inspection is then synchronised to the conveyor so the correct decision follows each pack to the reject point.
Foaming products
Recipes can be developed around the true liquid level, foam behaviour and inspection position.
Multiple formats
Operator-selected recipes support controlled changes in pack size, product and acceptance limits.
Suitable applications
Built around the product and the production line.
Final suitability and performance are confirmed against representative samples, pack formats and real line conditions.
Buyer specification
Specify the visible liquid boundary—not just the bottle.
Liquid inspection performance depends on how the real product behaves after filling. The method must distinguish the liquid from foam, bubbles, reflections, moulding marks and decoration while the pack is moving.
Product behaviour
Review meniscus shape, foam persistence, slosh, colour, viscosity and the time between filling and inspection.
Container optics
Test glass or plastic colour, wall thickness, embossing, labels, sleeves and expected manufacturing variation.
Line response
Define high and low limits, consecutive-failure alarms, tracking, reject confirmation and data required by production.
Practical answers
Questions production teams ask.
Final performance is application-specific and is confirmed using representative packs, products and line conditions.
Ask an engineerWhat liquids can machine vision inspect?
Still, carbonated, foaming, coloured and viscous liquids may be inspected when a repeatable visible boundary can be produced. Representative samples and real line behaviour determine feasibility.
Where should liquid fill level be inspected?
Usually after the liquid has had enough time to settle, but before downstream packaging hides the view. The exact position balances product stability, available space and reject distance.
Can the system handle recipe changes?
Yes. Recipes can store the inspection region, limits and related line settings for each validated format. Changeover control should prevent the wrong recipe being used.
Talk to Oxford Vision Systems