Improved Design Of Handheld X-fluorescence Spectrometer Based On FBS Model

Handheld X-fluorescence spectrometer is a widely used professional tool for substance detection.At present,the design of handheld X-fluorescence spectrometer mainly focuses on functional technology research,and less research is conducted for user requirements and ergonomics.In order to improve the design quality of the product and meet the user needs and ergonomic comfort.Based on the FBS design model,this paper introduces the interval-valued Pythagorean fuzzy set(IVPFS),a method tool to deal with inaccuracy,proposes the research theory and model of handheld X-fluorescence spectrometer based on IVPF-FBS,and completes the application and program verification of ergonomic optimization and improvement design of the product handle.The main research contents are as follows.Firstly,a handheld X-fluorescence spectrometer research model based on IVPF-FBS is constructed to address the user requirement ambiguity problem.It consists of three main stages.In the first stage,IVPFS is combined with AHP to study user requirements and obtain more accurate user requirement weights;in the second stage,IVPFS is combined with HOQ to transform between user requirements and functions and calculate the importance ranking of each functional characteristic;The third stage is based on the FBS model for "function-behavior-structure" mapping analysis.Second,the IVPF-FBS model was combined with the improved design study of handheld X-fluorescence spectrometer to confirm the product design structure strategy of handheld X-fluorescence spectrometer.Based on the analysis of the improved target products and user research,the evaluation index system of the handheld X-fluorescence spectrometer was established with functional requirements,aesthetic requirements and ergonomic requirements as the factor layers.According to the methodological steps of IVPF-FBS design model,the product design structure strategy of handheld Xfluorescence spectrometer was studied in turn.Then,according to the human-machine optimization requirements,the hand-held Xfluorescence spectrometer was subjected to experimental study of the hand-held humanmachine.The force sampling points are summarized through the experimental analysis of the force area of the hand grip,and the pressure experiments of the hand area are conducted on the force sampling points,and the pressure comfort of each area is analyzed in combination with the user’s grip comfort evaluation.According to the results of the experimental analysis,the improved design is launched.And combined with the finite element pressure grip force analysis,screening the optimal design solution.Finally,by integrating design semantics,colors,and materials,an improved design analysis is conducted on the product.Complete model production and scheme validation.