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  • TECHPAP

    TECHPAP

    2D Formation Sensor
    모델
    -
    시리즈
    Sensors

    제품 소개

    2D F Sensor - On Line paper formation sensor

     

    The purpose

    A well controlled sheet formation is necessary to ensure optimal physical characteristics leading to product quality, PM runabilty and reduced waste. To evaluate sheet formation, the paper maker needs to have good visual control, as well as a maximum of information about floc size distribution, floc anisotropy, periodic marks and trends. Centre Technique Du Papier (CTP) and Techpap developed a new 2 Dimensional OnLine formation tester based on current video analysis technology. The system is now successfully installed and operational on many paper machines throughout the world.

     

    The principle (Paper Formation Tester)

    A CCD camera takes images of the moving sheet which is backlit with a LED stroboscope. The images are transmitted to a PC for processing. This PC controls sensor operation and performs the algorithmic analysis. The operator interface gives a continuous image of the sheet, data trend curves, histograms, data arrays, periodic mark information and other relevant paper formation data.

     

    The Measuring Head

    The measuring head assembly is a ruggedly built U frame designed to fit from the side of the web. This U frame is composed of a central support to hold the cooling controls and to provide structural support. There are two anodised aluminium tubes attached to the U central structure, the top tube is used for the camera mount and the bottom is used for the strobe mount. This measuring head assembly can be installed on a bracket before the finish reel on the back side of the PM or just in front of a coater with the measuring area about 70 cm from the sheet edge. Emitting and receiving heads are cooled with air and water. An electrical control unit is mounted close to the head assembly and connected to a control computer in the control room.

     

     

    The Computer

    This PC performs the algorithmic treatment of the transmitted images. This algorithmic calculation is the result of 20 years of experience from CTP and Techpap Engineers in the field of formation index development. The Windows OS offers an excellent platform to perform those calculations as well as a user friendly and efficient means to display the output.

    By using a 420mA signal or an OPC server, the formation index data can be sent to the DCS or to a data historian on the mill network.

    생산 제품

    Sensors

    2D Formation Sensor
    Edge Crack Detector
    Web Break Supervisor
    Dirt&Shives Analysis
    Pulp Inspector (PI)
    PI Fiber Morpholgy
    PI Color&Brightness
    PI Freeness
    PI Dirt&Shives
    NIR Moisture & Plastic
    On Line HR3D

    Lab Device

    Fiber&Shive Analyzer - MorFi Neo
    Fiber Wall Thickness
    Laboratory Dirty Analyzer
    2D Formation Sensor
    Mottling Sensor-Kheops
    Fiber Orientation Analyzer
    Paper Stability&Creeping
    Humidity Generator
    Calipack Migration Cell
    Slosh Box
    3D Stick
    Lab HR3D
    Dirt analyser for large size samples

    Lab Equipment

    Dynamic Handsheet Former
    Handsheet Retention Tester
    Laboratory Equipment