Ion probe, ion meter, and self-calibration method of ion meter

摘要

An ionic probe (804) is provided according to the invention. The ionic probe (804) includes an active electrode (990) configured to generate a measurement signal for an external test fluid, a first reference electrode (994) configured to generate a first reference signal, and an at least second reference electrode (996) configured to generate at least a second reference signal. The measurement signal is compared to the first reference signal and the at least second reference signal in order to determine an ionic measurement of the external test fluid.