INDUCTANCE MEASUREMENT DEVICE AND INDUCTANCE MEASUREMENT METHOD

摘要

Provided are an inductance measurement device and inductance measurement method that make it possible to enhance safety, simplify measurement, and reduce cost. This inductance measurement device measures the inductance of a coil-equivalent part (1) that is an object of measurement. A measurement circuit is constructed in which a power storage means (2) is connected in series to the coil-equivalent part (1), and the measurement circuit is made to be capable of being connected to a DC power supply or other power supply (4) for applying an electric charge to the power storage means (2). The device is provided with switches (SW1, SW2) that make it possible to switch between a switching state in which the power storage means (2) and power supply (4) are connected and the coil-equivalent part (1) and power storage means (2) are disconnected and a switching state in which the power storage means (2) and power supply (4) are disconnected, the coil-equivalent part (1) and power storage means (2) are connected, and current is made to flow from the power storage means (2) to the coil-equivalent part (1), and the like. The device is provided with a means (5) for detecting voltage, and the like, for detecting the voltage and current of the coil-equivalent part (1) and the rate of change per unit time of the same.