An improved Boltzmann plot method where the intensity is taken as the integral of the experimental spectrum within a special band for a cluster of a rotational line of R and Q branches is proposed.This method aims at ...An improved Boltzmann plot method where the intensity is taken as the integral of the experimental spectrum within a special band for a cluster of a rotational line of R and Q branches is proposed.This method aims at deducing rotational and vibrational temperatures using CH radical A^(2)Δ→X^(2)Πband emission spectroscopy accurately.In addition,the data relative to the rotation lines of CH(A^(2)Δ→X^(2)Π)for both temperatures are assembled.The emission spectrum of CH(A^(2)Δ→X^(2)Π)at the inner cone of an acetylene-oxygen flame in a rich oxygen state is recorded and both of the temperatures are determined by the above-mentioned method.The values are recorded as 3141 K and 3097 K,for the rotational and vibrational temperatures,respectively.This result reveals that the equilibrium between the rotation and vibration states is achieved.A simple discussion for this method is also provided.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 10472123.
文摘An improved Boltzmann plot method where the intensity is taken as the integral of the experimental spectrum within a special band for a cluster of a rotational line of R and Q branches is proposed.This method aims at deducing rotational and vibrational temperatures using CH radical A^(2)Δ→X^(2)Πband emission spectroscopy accurately.In addition,the data relative to the rotation lines of CH(A^(2)Δ→X^(2)Π)for both temperatures are assembled.The emission spectrum of CH(A^(2)Δ→X^(2)Π)at the inner cone of an acetylene-oxygen flame in a rich oxygen state is recorded and both of the temperatures are determined by the above-mentioned method.The values are recorded as 3141 K and 3097 K,for the rotational and vibrational temperatures,respectively.This result reveals that the equilibrium between the rotation and vibration states is achieved.A simple discussion for this method is also provided.
