Description: eBay Store Design by Visualsoft Home About Us Our Feedback Shop Categories Craft / Ferrite -make your own Flexible - strip, paper, signs Whiteboard / Fridge Magnets Magnet Testing Equipment Neodymium Blocks Neodymium Disks / Rods Neodymium Cubes Neodymium Rings Neodymium Spheres Neodymium - Self Adhesive Neodymium N52 - High Grade Neodymium High Operating Temp AlNiCo (Alcomax) Samarium Cobalt Limescale Magnets Magnetic Toys Pot / Anchoring Magnets Special Offers Made In UK Non-Magnetic Items Other Magnet Pole Sensor Foil / Flux Detector card neodymium alnico ferrite smco £4.750 Length - 55 mm (2.16") +/-1mm manufacturers tolerance Width - 50 mm (2") +/-1mm manufacturers tolerance Length of viewing window - 35 mm (1.37") +/-1mm manufacturers tolerance Width of viewing window - 35 mm (1.37") +/-1mm manufacturers tolerance Maximum Thickness - 1 mm (2.08") +/-0.15mm manufacturers tolerance Weight - 1.8g each Protective Coating - Cardboard to rear to protect the film from getting scratched Maximum Temp - 50°C / 122°F Made by Guy's Magnets in Melksham, UK Ask a Question Description Do you remember those experiments in school with iron filings and magnets? This is an easier way to see a static magnetic field and a lot less messy! This is a micro-encapsulated foil of set within a cardboard holder to protect the rear of the film from damage. Each card has a viewing window of 35 x 35mm. When it's held directly onto the surface of a magnetic material it will instantly reveal the magnetic field of any shape or pattern. A handy cross on the reverse indicates where to hold the magnet so that it's central to the viewing window. It's used in quality control (weak spots or cracks in magnets show up as spots or lines), product demonstration, education, reverse engineering and product authentication but it's also a lot of fun. In three of the pictures above we've placed it over a magnet - flexible strip, a neodymium disk and a neodymium block magnet. Flexible strip is 'multi-polar' which means they have stripes of alternating north and south polarisation. The film clearly shows this. Each dark stripe represents a stripe of the flexible strip polarised in a single direction. The bright stripes in between the dark ones show where the poles meet and the magnetism from each stripe is cancelled out. When it's used on a stack of magnets it shows the interplay between the poles of each magnet in the stack which can be very beautiful. Once the foil is removed from the magnet the image remains for some time before it disipates. However, if you want to use the foil again instantly, you can but it will erase the previous image at the same time. Home About Us Our Feedback Contact Us eBay Store Design by Visualsoft
Price: 4.75 GBP
Location: SN101XA
End Time: 2024-08-17T13:10:42.000Z
Shipping Cost: 14.36 GBP
Product Images
Item Specifics
Return postage will be paid by: Buyer
Returns Accepted: Returns Accepted
After receiving the item, your buyer should cancel the purchase within: 30 days
Brand: Guy's Magnets Ltd
Material: Card and pole sensor foil
Shape: Not applicable
Grade: Not applicable
Item Length: 55mm
Item Width: 50mm
Model: Varies with drop down menu option
Coating: Card protects rear of pole sensor foil
Number in Pack: Varies with drop down menu option
Colour: Grey, red, blue and green
Country/Region of Manufacture: United Kingdom
Item Diameter: Not applicable
Item Weight: 1.8g
Length of viewing window: 35mm +/-1mm manufacturers tolerance
Width of viewing window: 35mm +/-1mm manufacturers tolerance
Thickness: 0.85mm - 1mm +/-0.2mm manufacturers tolerance
Available Variations
Color: 1 card
Price: 4.75 GBP
Available Quantity: 1311
Quantity Sold: 212
Color: 2 cards
Price: 8.09 GBP
Available Quantity: 612
Quantity Sold: 63
Color: 5 cards
Price: 18.95 GBP
Available Quantity: 230
Quantity Sold: 11
Color: 10 cards
Price: 35.79 GBP
Available Quantity: 114
Quantity Sold: 5
Color: 25 cards
Price: 86.85 GBP
Available Quantity: 43
Quantity Sold: 0
Color: 50 cards
Price: 171.05 GBP
Available Quantity: 21
Quantity Sold: 0
