Patent ID: 11953384
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Measurement (Instruments)
Classification: CPC F  G | IPC F  G

Claim 0:
1. A temperature measuring device comprising:
an ultrasonic sensor attached to a rear surface side of a structural body having a multilayer structure;
an acquisition unit configured to, through the ultrasonic sensor, acquire a signal of a reflected wave of an ultrasonic wave incident at an internal side of the structural body;
an extraction unit configured to, from the signal of the reflected wave, extract a domain including a reflected wave reflected on a surface on the internal side of the structural body;
an identification unit configured to, based on a signal of the reflected wave in the extracted domain, identify a temperature of the surface on the internal side of the structural body;
means to measure a reference temperature of the structural body; and
a storage configured to store an interface temperature table which defines a relationship between an amplitude of the reflected wave, the reference temperature, and the temperature of the surface on the internal side of the structural body, wherein
the identification unit acquires the reference temperature and identifies the temperature of the surface on the internal side of the structural body based on both of intensity of the signal of the reflected wave which indicates an amplitude of the reflected wave and the reference temperature by referring to the interface temperature table.