Jasch - Thickness Gauge (BTG3000

By: Jasch  06-Dec-2011
Keywords: Sensors, Production Process, Software Architecture

A Measurement System for rolling mills and coating lines.

Thickness gauge is a non-contact and non-destructive thickness gauge measurement systems to check the quantity measurement of the material on rolling mills, coating and paint lines and bring cost reduction and productivity increase to operations.

The system continuously monitor the thickness parameter (sheet thickness) of the material on both side of the mill. The deviations from preset target values are instantly detected allowing immediate corrections to the production process to maintain uniform thickness. All relevant measuring results are evaluated and displayed graphically on a monitor and documented by hard copy.

More than 150 systems installed worldwide are impressive evidence of the market acceptance and capability of our products and services.

SYSTEM ARCHITECTURE

The modern Thickness Measurement System, designed to be flexible and with open software architecture without compromising on system reliability, availability and ease of maintenance: JASCH BTG-3000 system fulfils all these needs using the latest in electronic technology and proven heavy duty mechanical components. The system is designed to concentrate on the most important task of accurate and stable thickness measurements of the material. The sensors are mounted on a precision platform which carries the sensors to desired position of measurement. The scanner has all the function control and signal conversion/processing electronics included in a Auxiliary panel. All measurement data from scanner is sent digitally via RS485 link to a PC based system which processes all measurements, generate running profiles, implements calibration tools, display maintenance data and machine operations.The Operator interface is implemented on another PC based system which is connected to the processing system through Ethernet link. The Operator interface is based on Labview™ which is highly user customizable and adaptable to varying mill requirements. Comprehensive production reports are generated for storage and hard copy.The whole set of profiles and measurement parameters from the processing system are available through an OPC server for high speed mill corrections either by operator or by AGC of the mill.

SENSORS

For all thickness machines the basic measurement required is the thickness of the material which can be Steel, Aluminum, Plastic etc. The measurement is displayed as microns (or mm) which is the basic parameter the operators use to ensure that their production is always with in the acceptable thickness range. The measuring principle is based on the attenuation of Gamma emitted by a nuclear source or X-rays, as it passes through a material. The thickness is determined by sensing variations in the energy radiated by the source of known intensity.

Each Gauge contains source and the detector mounted on opposite direction, which  are electronically aligned to cover  the moving sheet without any friction mounted on air bearings of special patented design maintaining an ultra stable cushion gap thickness thus providing accuracy level of that of contacting sensors but without any contact type problems.

C-Frame

The movement platform (tracks) carries both the sensors on a C-frame type mounting and continuously measures the sheet. Scanner precision and stability are crucial for obtaining proper measurements from the sensors. The C-Frame is designed to be very strong, reliable and at the same time accurate. The design is based on O-Beam structure welded together to form a "C" shape construction. The resulting C-Frame structure is very strong, rigid and mechanically stable. It is only with this rigid structure that makes it possible to mount sensors and maintain high precision alignment during scanning on the high speed running sheet. During the manufacturing process the top source and bottom detector mountings are precisely aligned to within ± 0.5mm in x, y and z directions. The materials used are chosen for precision and reliability under heavy duty daily use. With the rigid C-Frame design this precision alignment is mechanically locked into system. The track movement is on heavy duty linear motion system based on customer requirement of either motorized or pneumatic drive system.


Thickness Gauge.

Jasch non-contact and non-destructive steel thickness gauge technical specifications data sheet consisting of ion chamber for detector, gamma, beta or x-ray for source mounted on c-frame.

Keywords: Electronic Technology, Heavy Duty Mechanical, Measurement System, Open Software, Operator Interface, Production Process, Productivity Increase, Sensors, Software Architecture, System Architecture, Thickness Gauge,

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