Abstract:

Aimed at the lack of systematic parameter selection reference in the electrostatic correlation based velocity measurement，the principle and steps in choosing the sampling frequency and integral time were established，which took the analysis in the measurement error of transit time and the real application requirement into account. Besides，an experiment platform was built by using the real sensor and virtual instrument software. Using this platform，the principle in selecting the parameters in the electrostatic correlation based velocity measurement was proven.

Key words:

静电相关测速, 气固两相流, 采样频率, 积分时间, 实验平台

摘要： 针对静电相关测速缺乏系统的参数选取依据的问题，本文通过对渡越时间测量误差的分析，结合实际应用要求，系统归纳了相关运算中采样频率和积分时间的选取原则及步骤，并构建了基于虚拟仪器的静电相关实验平台，验证了静电相关参数选取原则的合理性。

关键词:

静电相关测速, 气固两相流, 采样频率, 积分时间, 实验平台