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Palma TechnologyAbout productsWidth and Camber Gauge
Slab Width and Camber Gauge
▒ General Description
After rolling process in a plate producing mill, plate width and camber are key factors determining product quality, causing the customer's claim. The gauge is used to measure the width and camber when plate is moving between process by vision processing method using laser and CCD camera. In special, the use of measurement method on the side and upper part overcame the limitation to positioning of gauge, which simplified system configuration through positioning algorithm.
Principle & Method

Laser Triangulation Method

Profile Positioning Method

System Configuration

Line-beam Laser Distance Meter

Electrical Controller(electrical room or operation room)

Can be modified upon customer request

Special Features

Independence measurement for thickness variation and warp

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Actual Delivered

 POSCO(Pohang)   No.2Plate Mill Plate F'CF Slab Width & Length Gauge

Applications

Measuring plate width and camber

Measuring rolling mill (FM) width and camber

Plate Position control system

SPECIFICATIONS
▒ System Specifications
System Performance Measurement Range Width : 1,200 to 4,700mm, Camber : -80 to +80mm
Unit of Measurement 0.1mm
Target Temperature 0℃ to 600℃(maximum 1200℃)
Permitable Vibration <±50.0mm
Reproducibility <±2.0mm
Accuracy <±2.0mm
Utility Pure Air 5kg⁄㎠, Dry, Class 3, 2-25A pipe lines
Water Non used / Used(customer request)
Environment Ambient Temperature 0℃ to 40℃
Relative Humidity Non-condensing environment for sensors
Signal Ground Maximum 10Ω
Frame Ground Maximum 100Ω
Power 220VAC, 60Hz, 1Phase
▒ Interface
TCP/IP(standard) Plate' s information, Configuration
Digital Input Material present detect
Digital Output Alarm for tolerance
Analog Input 4 to 20mA or DC 5V to 5V, output proportional to width deviation
▒ Line-beam Laser Distance Meter Specifications
Type Stainless steel extrusion(rectangular parallelepiped
Unit of Measurement 0.1 mm
Response Time <100ms
Reproducibility <±1.0mm
Accuracy <±1.0mm
Laser Source Solid state diode Laser
Laser Safety Class Class lll(b)
Laser Visible, Color Visible, Red or Green(at 1200℃)
Camera Type CCD Camera
Camera Interface Camera Link
Required Cooling Pure Air, Dry
Temperature Controller PID Auto-Controller
Cooling Device Cabinet Cooler
Relative Humidity Non-condensing environment
Ambient Temperature Range 0℃ to 40 ℃
Power 220VAC, 60Hz, 1Phase
▒ Electrical Controller Specifications
Type 19″ Standard Rack Mount
Dimension(mm) 800(W) × 800(D) × 2,000(H)
Peripheral Interface D⁄I, D⁄O, A⁄I, A/O, RS232 and TCP⁄IP(upon customer request)
Ambient Temperature Range -5℃ to 45℃
Relative Humidity Maximum 80%RH
Power 220VAC, 60Hz, 1Phase