phone (503) 612-9860
fax (503) 692-3518
Magnetic Viewing Film
This green plastic sheet changes color, becoming black, when penetrated by a magnetic field perpendicular to its surface. It is useful for viewing magnetic poles, fields, and transitions. Color change occurs at a low field strengh (10 to 50 gauss), and remains after the field is removed, but can be "erased" by stroking with a magnet, or reset by exposure to another magnetic field. Unlike some other magnetically sensitive films of coarser grain, this film has very high resolution, and easily shows details less than ten thousandths of an inch wide (less than half the width of a typical pencil line).
An 8-pole ring magnet placed below the viewing film produces a clear image of the magnetic pattern. 
See an enlarged view of the pattern
Sheet Size Qty. 1-4 Qty. 5-9 Qty. 10+
12" x 12" $40.00 $36.00 $32.00
4" x 6" $12.00 $11.00 $9.50
3" x 3" $4.50 $4.00 $3.60
Call (503) 612-9860 to order. Minimum order is $50 for all items, exclusive of shipping.
We accept cashier's checks or company checks for payment. Sorry, we cannot take Visa / MC / Paypal.
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Copyright © 2003 Oersted Technology II Inc.