Patent ID: 9310404
Filing Date: 2016-04-12
CPC Classification: G01R,H02J

Claim Text:
1. A power measurement system, comprising: a power temperature converter attached to a power supply line of an electric instrument and having a temperature changed corresponding to a current flowing through the power supply line; a temperature measurement apparatus configured to measure the temperature of the power temperature converter; and an analyzer configured to analyze power consumed by the electric instrument by using a measurement result of the temperature of the power temperature converter obtained by the temperature measurement apparatus, wherein the power temperature converter includes: a coil attached to the power supply line of the electric instrument and configured to output a current having a size corresponding to the current flowing through the power supply line by electromagnetic induction; a rectifier element configured to rectify the current outputted from the coil; a capacitor configured to accumulate charges by being supplied the current rectified by the rectifier element to the capacitor; a temperature change element having a temperature changed by a current discharged from the capacitor; a switch element configured to switch a connection counterpart of the capacitor between the rectifier element and the temperature change element; and a discharge control unit configured to control the switch element.