Metal Tube Arms Fuze Setting The Research And Design Of Energy And Information Transmission Channel

In modern battlefield, the integration of lethality and the hit precision in one weapon is needed. As the small caliber individual combat weapons studied in this dissertation, instead of the kinetic energy ammunition, fire the high explosive air bursting (HEAB) rounds to achieve high lethality and hit probability; adopt precise target acquisition and fuze inductive setting technology to improve the hit precision.In this dissertation, based on some small caliber individual combat weapons design, studies are made on the Contactless Power and Information Transmission (CPIT) channel of the inductive setting system in weapons with metal muzzles. Analyze it theoretically and experimentally, the design method is studied too. The transmission of information and power of fuze by the designed CPIT channel has significant importance to improve the weapon hit precision. The study will enrich the content of the CPIT technology, and will expand its application field.Firstly, the equivalent electrical circuit model of the influence to the contactless power transmission by the metal components is set up. The influences are mapped to equivalent resistance and equivalent inductance. The signification of mapped equivalent parameters is illuminated. Then, the impedances of the primary coils and secondary coils, and the mutual inductance between the primary coils and secondary coils are measured. Based on the experiment data, mapped equivalent resistances, mapped equivalent inductances, coupling coefficient, conductor losses of primary coils and secondary coils, eddy current loss, transmission efficiency are computed. Analyzing the influence of metal components is made base on the equivalent electrical circuit, some conclusions are listed, they will guided the fuze inductive setting system design in weapons with metal muzzle.Based on the theoretical and experimental analysis, practice a design method which focus on the contactless transformer parameters, a class E amplifier is designed consequently, which could be applied in the fuze setter in some small caliber weapon. The efficiency of the circuit also is computed. The transmission efficient, eddy electrical loss of the contactless transformer drove by the designed amplifier, are computed. The computed result is that the transmission efficient is just 0.903%, the eddy current loss take 85.13% power of the primary coil input power away, so, when metal components exist, the contactless transformer in fuze inductive setting system is a extraordinary component.The research in this dissertation indicate that the equivalent electrical circuit model is a effective approach to analyze the influence of the metal components to the CPIT channel in the inductive setting system, that mounted in the weapons with metal muzzle. This method can procure the theoretical and experimental analysis results conveniently, applicable to utilize in the engineering design. The equivalent electrical circuit model could be adopted in the CPIT channel analyzing.