1. upstream of the flameholder. A Hamamatsu R943-02 photomultiplier tube
2. about 200-280Hz and the magnitude of pressure
3. fluctuation about 150-16OdB. The temperature downstream of the flame
4. rapidly increased (amounting to 950-1000°C at
5. ! 1 -I +o 0 400 800 1200 1600 Frequency (Hz)