Patent ID: 8647489

Claim:
A handheld measuring device, for determining the concentration of an analyte in a sample, where the device is adapted to receive a sensor strip and the device comprises: at least two contacts; at least one display; and electrical circuitry establishing electrical communication between the at least two contacts and the at least one display, where the electrical circuitry includes a processor in electrical communication with an electric charger and a computer readable storage medium, where the processor is capable of implementing a pulse sequence from the electric charger to the at least two contacts, where the pulse sequence comprises at least two duty cycles, where each of the duty cycles includes an excitation and a relaxation, where the relaxation is from 0.1 to 3 seconds and includes a current reduction to at least one-half the current flow at the excitation maxima, where the excitation includes a potential varied with time, where the processor is capable of measuring resulting currents at the at least two contacts from at least one of the excitations including the potential varied with time, and where the processor is capable of determining the analyte concentration in the sample in response to the at least one of the resulting currents.