应用火花塞光纤传感测量系统对BJ 492 Q汽油机爆燃燃烧进行测量和研究，分析了爆燃燃烧时火焰光辐射的变化情况。
Researches on knock combustion in BJ492Q using spark plug optical sensors are presented in this paper. The effects of knock intensity on light emission are studied.
试验表明，火花塞光纤传感器完全可用于爆燃测量。
The use of the spark plug sensor is proved to be feasible in knock combustion detection.
试验表明，火花塞光纤传感器完全可用于爆燃测量。
The use of the spark plug sensor is proved to be feasible in knock combustion detection.
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