44results about How to "The data processing method is simple" patented technology

The invention discloses a minimum distance sorting method assisted by a digital mapping brief spelling coding method and an internal sorting method, which is directly applied in the technical field of the total field digital mapping. The brief spelling coding method is composed of a type code+ (a series number)+ (a descriptor)+ (a feature code)+ (-an attribute code)(contents in the brackets are selectable), wherein the measured data is sorted by the minimum distance sorting method assisted by the brief spelling coding method. The minimum distance sorting method is as follows: sequentially calculating distances between the base point and the rest points from the starting point of the surface feature data point and taking the starting point of the surface feature data point as the base point, and selecting the data point with the shortest distance as the connection point with the base point, and taking the selected point with the shortest distance as the base point again, and sequentially calculating the distances between the base point and the rest points, and selecting the data point with the shortest distance as the connection point with the base point, and repeating the steps until no rest points are left; finally, sorting the data points with the shortest distances from each selection based on the precedence such that the sequence fully ensures the connection relationship between each surface feature data point and the other points. The minimum distance sorting method can achieve full automation on field mapping fast coding and interior data processing and map making.

The invention discloses a method for improving the phase accuracy of a vector network analyzer scanning test, and specifically relates to the technical field of vector network analyzer scanning measurement. In the scanning measurement process, the invention measures the frequency of the intermediate frequency signal while measuring the S21 phase, calculates the time delay of the measured part through the frequency deviation, and uses the time delay of the tested part to correct the measured initial measurement value of the S21 phase. The method can obtain the factors that affect the phase measurement result and eliminate the influence, and solve the problem that the existing measurement method has a large error in the phase result when the S21 measurement is performed on a long test piece.

The invention discloses a high-speed loading material dynamic indentation experimental method which is characterized by comprising the following steps of: firstly, fixedly arranging a cylindrical tested part on the end face of the front end of a circular section compression bar, adhering a strain gauge to the compression bar and electrically connecting the strain gauge and a high dynamic strain indicator; then fixedly arranging a light-triggered speed measurement device in front of the tested part; launching a shot by a shot lunching device and enabling the shot to pass through the light-triggered speed measurement device to impact the tested part; and finally, obtaining a press-in force, a press-in speed and a press-in displacement time history of the tested part by a relation. The high-speed loading material dynamic indentation experimental method has the advantages that by the experimental method, dynamic mechanical properties (such as the press-in force, the press-in speed and the press-in displacement time history) of the tested part in the impact process can be measured, so that the dynamic mechanical properties of a material are more deeply researched; moreover, the method can be suitable for a higher impact speed; the impact speed can reach 100m / s; and meanwhile, the experimental method has high measurement accuracy and adopts a simple data processing method.