Patent ID: 6202480
Filing Date: 2001-03-20
Classification: G01N

Abstract:
A sensor for sensing in a gas stream a vapor of a liquid, comprising:a micropore having an evaporation end and having a lumen to conduct liquid from a supply of the liquid for evaporation at the evaporation end; anda wet temperate sensor having a heat sensitive part in contact with the liquid in the micropore, the heat sensitive part circumscribing the micropore and forming part of the lumen, wherein heat loss due to evaporation of the liquid when the wet temperature sensor wet with the liquid is placed in the gas stream will result in the temperature sensed by the wet temperature sensor being lower than the non-evaporative temperature of the gas stream sensed by at least one reference temperature sensor, the lowering in temperature being measurable to determine the concentration of the vapor in the gas stream.