3results about How to "Meet actual testing needs" patented technology

The invention discloses a method and system for testing the capacitance value of an integrated capacitor, and relates to the field of electrical measurement, and the method comprises the steps: obtaining the rated information of a to-be-tested integrated capacitor, and generating a control parameter based on the rated information; iteratively calculating the capacitance value of each phase of the to-be-tested integrated capacitor based on a preset adaptive optimization algorithm and the control parameters; and obtaining a target capacitance value of each phase until a preset convergence condition is met, and completing the test. In each iteration process, acquiring a three-phase voltage signal and a three-phase current signal of the to-be-tested integrated capacitor based on the current control parameter; performing feature extraction on the three-phase voltage signal and the three-phase current signal to obtain spectrum feature information; constructing a coupling matrix of the to-be-tested integrated capacitor based on the spectrum feature information, and separately calculating an independent capacitance value of each phase based on the coupling matrix and a coupling residual error to obtain a first calculation result; and optimizing the control parameters based on the first calculation result to obtain the control parameters of the next iteration process.

The application discloses a kind of quick detection methods for the chloride ion permeability of slag-based alkali-activated concrete, comprising: preparing slag-based alkali-activated concrete test piece, and pretreating slag-based alkali-activated concrete test piece;The test piece is contacted with electrolyte, and the test piece is tested according to the set test voltage and test duration Chloride ion electromigration test;After testing, the chloride ion penetration depth is measured, and the chloride ion migration coefficient initial value is calculated;The chloride ion migration coefficient initial value is corrected to obtain the chloride ion migration coefficient correction value;According to the chloride ion migration coefficient correction value, the chloride ion permeability of slag-based alkali-activated concrete is evaluated.The application can adapt to the performance characteristics of slag-based alkali-activated concrete, and the detection efficiency is high and the detection accuracy is high.