# A radiometer is employed to monitor the temperature of manufactured parts (A 1 = 10 cm 2

## Question:

A radiometer is employed to monitor the temperature of manufactured parts (A1 = 10 cm2) on a conveyor. The radiometer is placed at a distance of 1 m from and normal to the manufactured parts. When a part moves to the position normal to the radiometer, the sensor measures the radiation emitted from the part. In order to prevent thermal burn on people handling the manufactured parts at the end of the conveyor, the temperature of the parts should be below 45°C. An array of spray heads is programmed to discharge mist to cool the parts when the radiometer detects a temperature of 45°C or higher on a part. If the manufactured parts can be approximated as blackbody, determine the irradiation on the radiometer that should trigger the spray heads to release cooling mist when the temperature is not below 45°C.

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