Element by element calibration method for the optoelectronic precipitation gage
V.V. Kalchikhin, A.A. Kobzev, A.A. Tikhomirov, D.E. Filatov
Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: optical precipitation gauge, calibration, drop size, optical meter of linear dimensions
Abstract
A review of methods for calibrating optical raingauges is carried out. The disadvantages of the existing calibration methods of the optoelectronic raingauge OPTIOS are analyzed and the ways to eliminate them are proposed. The original patented method for calibrating the optical raingauge is described in detail, which makes it possible to increase the accuracy of determining the dimensions of hydrometeors by taking into account the effective size of each photosensitive element of the linear sensor. A conclusion is made about the reliability of the proposed calibration method, which makes it possible to use the method to improve the accuracy of any optical meters of linear dimensions of various objects using a linear array of photosensitive elements as a measuring transducer.
|
