VECTOR Technology
From the simple leaf on a lazy river, to the modern radiosonde, humans have used tracers to 
measure fluid flow for as long as anyone can remember. More recently, technology has made it possible to see heat "move" from one place to another. As a result, heat flow is used as a tracer in weather stations equipped with hot-wire anemometers. Even the "wind chill factor" is based on the the cooling effects of fluid flow over a uniformly heated surface, or, how a wind of a certain temperature makes you feel colder than when the air is still. Although heat has been used in different versions of fluid flow sensors since the 1960's. VECTOR Technology, however, is the first to incorporate the principles of heat flow as they pertain to a heated cylinder within a slowly moving fluid field.
Click on "Principles" at left to learn how a thermistor on the surface of a probe are used to sense changing temperature distributions as fluid moves over the sensor surface.
Click on "Theory" to learn about the mathematical foundation underlying the algorithm used by VECTOR Technology to turn a temperature distribution on a cylinder into a flow vector with direction and magnitude.
Click on "Geometry" to see what how the groundwater vector influences its thermal signature on the sensor surface
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