Board / Panel / Extrusion Product Measurements

SCAN_LASER 2020 – Laser Over Roller

SCAN_LASER 2040 – Dual Laser Horizontal

SCAN_LASER 2060 – Dual Laser Vertical

SCAN_LASER 2020 and 2040 provide on-line measurement of:

• Thickness / Gauge Profile
• Width
• Temperature profile (optional)
• Other process parameters such as line speed and plant status

The system can also provide feedback control for dies / haul off / calendar rolls / coating blades.

For materials that travel over a roller and are in constant contact with it (typically more flexible materials such as thin extrusions), SCAN_LASER 2020 provides measurements with reference to the roller or anvil. An anvil is used if the material is not affected by passing over a fixed reference (for example extrusions on release paper).

For rigid materials that vibrate as they travel down the production line – such as board products or building panels, then a SCAN_LASER 2040 system is required. Lasers measure both the top and bottom surfaces simultaneously providing a differential measurement that cancels out any vertical movement.

SCAN_LASER 2060 provides on-line measurement of:

• Edge profile
• Width (including high accuracy)

With temperature and other process parameters also being optional.

Click here to download the data sheet.

Products Measured: 

Scan_Laser 2020/40/60 can be used to measure a wide range of products as they travel down a production line. Typical products include:

Plasterboard	Building panels	Rubber matting
Extruded sheet	Extruded profile	Composite panels
Paper board	Particle board	Metal sheet & profile

Measurement Technical Data: 

SCAN_LASER 2020/40/60 is supplied with one of two laser measurement heads:

SL1400 Range
Ranges	5,10,20,50,100,200
Linearity	< 0.2% FSO
Resolution	Dynamic 0.05% FSO
Frequency	1Khz
Temperature	Option to add infra red sensor
Width	Option via encoder

SL1700
Range	5,10,20,50,100,200
Accuracy	< 0.1% FSO
Resolution	Dynamic 0.01% FSO
Frequency	2.5 KHz
Temperature	Option to add infra red sensor
Width	Option via encoder

Sensor Head and Installation: 

The measurement head is mounted on a linear guide that is controlled via either a stepper motor or AC motor depending on the application.

In normal operation the head measures thickness profile by scanning back and forth across the material either in relation to a reference or using dual opposing gauges for differential measurement.

There is an option for the head to remain stationary for a period of time and measure the thickness at a single location as the material moves down the production line. This enables the investigation of effects along the length of the product.

Software and Systems:

SCAN_LASER is based on standard PCs with a touch screen and traffic light annunciators. The software is configurable for the different types of measurement and control. A typical user interface screen is shown below:

SCAN_LASER software provides:

• Real-time profile displays
• Traffic light annunciation for alarms including warnings prior to product going out of tolerance
• Database covering measurement tolerances for each product – for fast configuration when the product changes
• Logging across batch / shift / day as required
• SPC Charts
• Standard control algorithms