Colorado Superconductor, Inc. - Four-Point Probe Systems

Four-Point Probe Systems

The Four-Point Probe device makes it possible to take precise measurements of resistance versus temperature, as well as explore many fascinating properties of superconductivity, such as the critical current density and critical magnetic field associated with the encased superconductor disk. Use of the CSI Sand Cryostat (see below) is recommended for best results.

K5 - Complete Exploration Kit $140.00

One of our most popular kits, the Complete Exploration Kit contains the unique Four-Point Probe system -- a one-inch diameter superconductor disk encased in a brass fitting with attached current, voltage, and thermocouple probes, allowing for complete and accurate measurements of several critical properties of superconductors. Included are two rare-earth magnets, non-magnetic tweezers and a separate superconductor disk for Meissner Effect demonstrations.

K5-B - Complete Exploration Kit (Bismuth) $175.00

Identical to the Complete Exploration Kit above, except that the included superconductor disk and probe are made from a Bismuth based material which has a measurably higher critical temperature than the Yttrium based superconductor.

K15 - Super Exploration Kit $255.00

A Complete YBa2Cu3O7 vs. Bi2Sr2Ca2Cu3O10 comparison kit, the Super Exploration Kit contains two one-inch superconductors (one of each material), two Four-Point Probes (one of each material), two rare-earth magnets, and non-magnetic tweezers for safe handling.

CR1 - CSI Sand Cryostat $40.00

The Sand Cryostat (as its name suggests), offers a controlled temperature environment for superconductor experiments allowing the experimenter to record clear and accurate measurements. It consists of a half pint of washed and screened sand in a 12 oz. foam-insulated mug.  The cryostat acts as a very basic heat sink for the probe.

For pricing on our entire line of superconductor products, see the Master Price List.
To place an order, try our new online Order Form.


Send mail to with questions or comments about this web site.
Revised January 4, 2002.
Copyright © 2002 Colorado Superconductor, Inc.