FLOW PATH DEVICE, COMPLEX DIELECTRIC CONSTANT MEASUREMENT DEVICE, AND DIELECTRIC CYTOMETRY DEVICE

摘要

A flow channel device, a complex permittivity measuring apparatus, and a dielectric cytometry system are provided which can improve the measurement accuracy. A constriction portion (11A) having a constricted space (CS) is disposed between an inflow port (IF) and an outflow port (OF) of a flow channel (11). Electrodes (12A and 12B) are arranged between the inflow port (IF) and the constriction portion (11A) and between the outflow port (OF) and the constriction portion (11A). The conductance of the constriction portion (11A) at a low-limit frequency is less than the combined conductance of an inflow channel portion (11B) and an outflow channel portion (11C). The capacitance of the constriction portion (11A) at a high-limit frequency is less than the combined capacitance of the inflow channel portion (11B) and the outflow channel portion (11C).