Potential measurement apparatus according to the physical phenomena or chemical phenomena

摘要

PPROBLEM TO BE SOLVED: To provide an instrument for measuring a precise potential related to a physical or chemical phenomenon constituted so as to simply correct the irregularity or changes of the output characteristics of a device with time and to enhance properties for various applications. PSOLUTION: The instrument for measuring a potential has at least one detection system 21 having a charge feed part, a sensing part and floating diffusion and the reference potential setting part 26 provided to a sample introducing part, with which the sensing part comes into contact, to prescribe the measuring potential of the detection system and also has a control adjusting part 22 for scanning the potential of the reference potential setting part 26 to acquire the output characteristics of the detection system 21 and controlling the quantity of the charge supplied to the sensing part to adjust the rising REF voltage of the output characteristics to automatically correct the output characteristics. PCOPYRIGHT: (C)2007,JPO&INPIT