Thermocouple Wire

Thermocouple wire is used in a variety of cryogenic applications, but special techniques must be employed to approach temperature accuracies of 1% of temperature, even without consideration for the effects of high magnetic fields or high radiation fluxes. The problems are further complicated by exposure to variable gradient conditions at cryogenic temperatures.

Many Lake Shore temperature controllers offer inputs that accommodate most common types of cryogenic thermocouple wire in use.

Type E (chromel-constantan) thermocouple wire

This type of wire has the highest sensitivity among the standard thermocouple types typically used at low temperatures. It is the best choice for temperatures down to 40 K.

Type K (chromel-alumel) thermocouple wire

This type of wire is recommended for continuous use in inert atmospheres. It has a sensitivity of 4.1  mV/K at 20 K (about ½ of Type E).

For specifications and other details, visit the thermocouple wire page on the Lake Shor website.