Design of a pyrometer for temperature measurements on the solid fuel combustion chamber
Abstract
A pyrometer was developed for the measurement of the flame temperature of the solid fuel combustion chamber. The principle of the design is based on the measurement of the spectral intensity at two wavelengths, 577 and 830 nm, emitted by the soot in the flame. The ratio of the intensities is a univocal measure of the color temperature at these wavelengths. The apparatus is small, robust and user friendly. Calibration currents which imitate the output of the detectors are used to control the electronic circuits. The preliminary measuring accuracy between 1400 and 2800 K is about 20 K if the pyrometer is calibrated every 4 months using a qualified tungsten ribbon lamp.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- October 1987
- Bibcode:
- 1987STIN...9019561A
- Keywords:
-
- Combustion Chambers;
- Equipment Specifications;
- Flame Temperature;
- Product Development;
- Pyrometers;
- Accuracy;
- Calibrating;
- Spectral Emission;
- Temperature Measurement;
- Instrumentation and Photography