| 摘要 |
FIELD: instrumentation. SUBSTANCE: digital pyrometer of spectral ratio is intended for measurement of temperature of heated articles under high-temperature technological processes. Proposed pyrometer incorporates composite light filter, vibration scanner with photodetector, photocurrent amplifier, two commutators, integrator, two peak detectors, clock pulse generator, key, pulse counter, frequency divider. Given digital pyrometer of spectral ratio employs operational principle of analog-to-digital converter with push-pull integration that has lesser conversion error caused by instability of parameters of components in comparison with sweeping time pulse converter. EFFECT: enhanced operational accuracy and stability of digital pyrometer. 2 dwgs
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