Transcription of Chapter 1 Introduction to Radiometry - SPIE
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Chapter 1 Introduction to Radiometry - SPIE
1 Chapter 1 Introduction to Radiometry Definitions Consider the following definitions a starting point for our study of Radiometry : radio- [<L. radius] a combining form meaning ray, raylike -metry [Gr. -metria < metron] a terminal combining form meaning the process, art, or science of measuring radiometer (r 'd - m -ter) n. [radio- + -meter], an instrument for detecting and measuring the intensity of radiant energy, by exposing to sunlight a set of vanes blackened on one side and suspended on an axis in a vacuum and measuring their speed of rotation ( , the mechanical energy into which the radiant energy has been converted) (See Fig.)
1 Chapter 1 Introduction to Radiometry 1.1 Definitions Consider the following definitions a starting point for our study of radiometry: radio- [<L.radius] a combining form meaning ray, raylike -metry [Gr. -metria < metron] a terminal combining form meaning the process, art, or science of measuring
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