Quantity   Component name
1 × Coil Wire I used about 3200 turns for the Toroid and nearly 1200 for the Linear FCDT.
1 × Ferrofluid You can buy it on eBay, 10ml should be enough: http://www.ebay.com/itm/10ml-ferrofluid-in-a-bottle-ferro-fluid-magnetic-fluid-liquid-magnet-EFH-1-/171330750449?hash=item27e41bc7f1:g:UFkAAMXQyY1TUQJ5
1 × Glass tube Inner diameter around 5mm.
1 × Bended glass tube Glass technicians will help.
1 × Analog Devices AD598 I used this IC for signal conditioning.
1 × +/-15 V power supply For the AD598.
1 × At least 16-bit ADC To process the output signal of the AD598 signal conditioner IC.
1 × Arduino For the presentational box.