Glucose sensor based on open circuit potential (OCP) signal

A device for determining a glucose level of a patient includes a set of electrodes including a first working electrode, a second working electrode, a counter electrode, and a reference electrode. The reference electrode is electrically coupled to the counter electrode. The apparatus also includes a memory and one or more processors implemented in a circuit and in communication with the memory. The one or more processors are configured to determine a sensor signal based on a current flowing between the first working electrode and the counter electrode, and to determine an open circuit potential (OCP) signal based on a voltage across the second working electrode and the reference electrode. The one or more processors are further configured to determine the glucose level of the patient based on the sensor signal and the OCP signal, and output an indication of the glucose level. 一种用于确定患者的葡萄糖水平的装置，该装置包括一组电极，该一组电极包括第一工作电极、第二工作电极、反电极和参比电极。该参比电极电联接到该反电极。该装置还包括存储器和在电路中实施并与该存储器通信的一个或多个处理器。该一个或多个处理器被配置为基于在该第一工作电极与该反电极之间