Probe for measuring volatile components in an aqueous solution

摘要

A probe measures the transitional constituents in an aqueous solution to e.g. determine the concn. of alcohol in an aqueous solution. It consists of a casing holding a membrane and gas sensor which responds to the gases passing through the membrane. An air-filled measuring chamber is located between the membrane and sensor. The novelty is that the probe body (1) incorporates: (a) a lumen(11) passing through the front-end; (b) a flat pervaporation membrane near to the front-end running transverse to the lumen (11) and separating the lumen from the outside; (c) the sensor (8) is arranged within the lumen(11) near to the membrane and forming a measurement chamber (9); (d) an inner body (2) is inserted in the lumen (11) from the rear side of the probe body (1); (e) the body (2) locates the sensor (8), and incorporates a drill hole (20) for the exchange gas and air between the measuring chamber and atmosphere.