Research on the stability of IUR76-I/IUR76-II test systems for flame detectors and related national standards

The stability of test system for flame detectors is relied on the stabilities of critical optical devices, such as optical source, filter set, and optical modulator. To increase the stability of normal test system for flame detectors, IUR76-I/II test systems for flame detectors are self-designed and manufactured based on the related national standards of P.R.C. Being different with traditional test systems, the new optical source is equipped in IUR76-I/II test systems. Comprehending the stability of main optical devices, the different of system stability between new test system and the requirements of national standards are calculated and researched in this paper. And the suggestions for the related national standards also are mentioned.