Patent ID: 6908536
Filing Date: 2005-06-21
Classification: G01N

Abstract:
1. An electrochemical sensor arrangement comprising: a plurality of measuring beads arranged at spaced locations from each other, each of said measuring heads includes a sensor electrode array, and an operating electronic unit with an analog to digital converter connected to said array, each said operating unit also including a digital to analog converter connected to said array, and a microprocessor connected to said analog to digital converter and to said digital to analog converter, said microprocessor processing signals from said array with a control algorithm to measure substance concentration at said array, said control algorithm operating said analog to digital converter and said digital to analog converter to form a potentiostat, said microprocessor, said analog to digital converter and said digital to analog converter being integrated on a single chip, each of said measuring heads including a digital network interface connected to said microprocessor; a network bus system connected to said network interface of said measuring heads; a central unit connected to said network bus system for repetitively monitoring said plurality of measuring heads.