透射式能见度仪校准方法研究

Research on calibration methods of transmission visibility meter

文章通过对透射式能见度仪的测量原理和校准方法的研究,结合能见度目测值比仪器测量值偏高的实际情况,建议进行透射式能见度仪校准时,可在合理范围内选择比目测值稍偏大的校准值,尽量避免将给定"标准值"偏差落入负向偏差区间,减小能见度测量误差。同时,可使仪器测量能见度值与人的感觉更加接近,能见度的测量更具有现实意义。

According to the research on the measuring theory and calibration methods of transmission visibility meter,combined with actual situation that the visibility value measured by the visual is higher than the instrument,this paper suggests that the calibration value should be chose which is a little bit of larger than visual value within a reasonable range when it is using transmission visibility meter.Avoiding as far as possible the deviation of a given Standard Value falls into the negative deviation interval in order to reduce the visibility measurement errors.Meanwhile,it could make the visibility measurement by the instrument getting closer to the visual measurement and making more practical significance for visibility measurement.