Sensor for measuring electrolytic conductivity of fluid - has measuring electrodes applied to substrate via thin-film technique

摘要

The sensor has at least 2 spaced electrodes (2,3) applied via a planar technique to a heat resistant substrate (1) which is unaffected by the measuring soln. each electrode (2,3) coupled to a respective lead wire, coated with an electrical insulation (5) which is unaffected by the measuring soln. Pref. the electrodes (2,3) are made of a metal listed in the first or the eighth group of the periodic system, or of a carbon material, pref. applied to the substrate (1) via a thin-film technique. ADVANTAGE - Low-cost mfr.