Junbo Wang, Zhuo Ma, Yafei Li, Chuantao Zheng, Yiding Wang. Influence of Mechanical Vibration on Optical Fire Alarm System and Its Improvement Measures[J]. Laser & Optoelectronics Progress, 2021, 58(23): 2330002
- Laser & Optoelectronics Progress
- Vol. 58, Issue 23, 2330002 (2021)
Fig. 1. Absorption spectra of CO2 and H2O at 4.26 μm
Fig. 2. Schematic of infrared fire CO2 alarming system
Fig. 3. Relationship between voltage ratio and CO2 gas concentration
Fig. 4. Measured CO2 concentration curve at static state
Fig. 5. Measured CO2 concentration curve at vibrational state
Fig. 6. Fire alarming system and vibration reduction module
Fig. 7. Dynamic model with single degree of freedom
Fig. 8. Simulation vibration waveform by MATLAB software
Fig. 9. Measured vibration speed on highway under rough road conditions
Fig. 10. Measured vibration speed on highway
Fig. 11. Measured vibration speed on stone road
Fig. 12. CO2 concentration curve at damping state
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Table 1. Vibration speed before and after vibration reduction under different roads
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