BIOSENSOR ELECTROMAGNETIC NOISE CANCELLATION

摘要

A biosensing cell assembly having a measurement loop with a test cell having an analyte reaction zone for amperometric measurement of a response current to determine analyte concentration and a noise cancellation loop arranged to be physically exposed to the same electromagnetic environment as the measuremen t loop. The noise cancellation loop has a predetermined impedance within a ran ge of the impedance of the test cell analyte reaction zone and provides a current to cancel or reduce the effects of the electromagnetic environment on the measurement loo p.