Patent ID: 11874173
Assignee: EXERGEN CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 20:
21. A detector comprising:
a radiation sensor configured to view first and second surface areas of a body;
an ambient temperature sensor;
electronics coupled to the radiation sensor and the ambient temperature sensor, the electronics configured to:
compute a first normalized surface temperature of the first viewed surface area based on a first radiation sensor output, the first normalized surface temperature normalized to a specified ambient temperature as a function of sensed ambient temperature;
compute a second normalized surface temperature of the second viewed surface area based on a second radiation sensor output, the second normalized surface temperature normalized to the specified ambient temperature as a function of sensed ambient temperature,
store in memory the first and second normalized surface temperatures, and compute a difference between the first normalized surface temperature and the second normalized surface temperature; and
a display configured to display the computed difference.