The report describes the theory, details and performance of the laboratory prototype of a small-scale Fourier spectrometer to measure the absolute spectral intensity of the radiation from the Earth or other planets in the 10 to 40 micrometer range from aircraft, balloons, rockets or satellites.

The report describes the theory, details and performance of the laboratory prototype of a small-scale Fourier spectrometer to measure the absolute spectral intensity of the radiation from the Earth or other planets in the 10 to 40 micrometer range from aircraft, balloons, rockets or satellites.

Infrared spectroscopy is generally understood to mean the science of spectra relating to infrared radiation, namely electromagnetic waves, in the wavelength region occurring intermediately between visible light and microwaves. Measurements of infrared spectra have been providing useful information, for a variety of scientific research and industrial studies, for over half a century; this is set to continue in the foreseeable future. Introduction to Experimental Infrared Spectroscopy is intended to be a handy guide for those who have no, or limited, experience in infrared spectroscopic measurements but are utilising infrared-related methods for their research or in practical applications. Written by leading researchers and experienced practitioners, this work consists of 22 chapters and presents the basic theory, methodology and practical measurement methods, including ATR, photoacoustic, IR imaging, NIR, 2D-COS, and VCD. The six Appendices will aid readers in understanding the concepts presented in the main text. Written in an easy-to-understand way this book is suitable for students, researchers and technicians working with infrared spectroscopy and related methods.

This study describes the technique of Fourier transform infrared technology. The underlying theory is described in tandem with discussion of the instrumentation and its development to the present time. The fundamental advantages of the FT approach are described, and the physical principles are explained without recourse to rigorous mathematics. The various types of construction of the range of current commercial instruments are examined, and their advantages and disadvantages noted. In addition, there are descriptions of spectrometers built for special applications, such as space flight.