Pyrometry: A Practical Treatise on the Measurement of High Temperatures

In the early 20th century, the ability to measure extreme temperatures with precision was revolutionizing industry. Steel mills, glass factories, and chemical plants all depended on accurate thermal readings, yet the science of pyrometry remained scattered across technical manuals and manufacturer specifications. Charles R. Darling's comprehensive treatise changed this, offering engineers and scientists an indispensable guide to every major method of high-temperature measurement. The book systematically explores thermo-electric, resistance, radiation, optical, calorimetric, and fusion pyrometers, revealing the underlying principles and practical applications of each technology. Darling pays particular attention to the materials science of thermal junctions, explaining how to select suitable metals and avoid the factors that introduce error. This is a working handbook for anyone who needs to know not just how pyrometers work, but which one to choose for specific industrial or laboratory conditions.