Abstract
When measuring temperatures of high intensity combustion systems the conditions may be such that it is necessary to use a remote-reading device. A description is given of a simple adaptation of a commercially available diffraction monochromator for use in the line revesral method of temperature measurement. By means of a vibrating slit mechanism the monochromator is made to scan a wavelength range of about 4 A in the region of the spectral line in use, and a photomultiplier tube receives the transmitted light. The output signal is suitable for use with a feedback system that maintains the reversal balance condition and can give a direct reading of temperature variation or be used in automatic control systems.
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