thermointegrator


Also found in: Medical.

thermointegrator

[¦thər·mō′int·ə‚grād·ər]
(engineering)
An apparatus, used in studying soil temperatures, for measuring the total supply of heat during a given period; it consists of a long nickel coil (inserted into the soil by an attached rod) forming a 100-ohm resistance thermometer and a 6-volt battery, the current used being recorded on a galvanometer; a mercury thermometer can be used.