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DEVICE FOR TREATING BELTLIKE CONDUCTOR WITH UNDETERMINED LENGTH AND METHOD OF TREATING BELTLIKE STEEL MATERIAL WITH UNDETERMINED LENGTH
DEVICE FOR TREATING BELTLIKE CONDUCTOR WITH UNDETERMINED LENGTH AND METHOD OF TREATING BELTLIKE STEEL MATERIAL WITH UNDETERMINED LENGTH
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机译:长度不确定的贝尔蒂克导体的处理装置和长度不确定的贝尔蒂克钢材料的处理方法
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摘要
Method and apparatus for monitoring the flatness characteristic of a moving electrically conducting strip of material by continuously measuring the change in capacitance between the strip surface and a fixed point adjacent the surface. The capacitance is measured by means of a sensor having an active plate surrounded by a guard plate for eliminating stray capacitance, both plates being impressed with a high frequency signal. Changes in capacitance associated with both plates are eliminated while changes in capacitance associated with only the active plate are covered to a voltage proportional to the inverse of the spacing between the active plate and the strip surface. A plurality of the sensors may be spaced across the width of the plate for providing a profile of the strip flatness characteristics. The sensor finds particular application for monitoring and characterizing bottom buckles in steel strip following high temperature annealing.
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