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一特性常数 A=1MPa/N 的等强度梁,材料的波松比μ=0.3,弹性模量E=2×105MPa,若悬臂端加载P=40N,根据图中贴片和组桥方式,填写静态应变测量时的仪器读数(),或填写电阻R的标号(注:括号内R在梁下面)


                                   R1R3  R5R7


      R1 R2    R5  R6     P                           


                                                                               R9     


                                                                               R10    


 R3 , R4    R7 R8               R2R4    R6R8                 补偿板   


 


  

                         

        R3

               A 

               B

        R1     C     

       R7

               A

               B

       R3      C     

     R1   R7  

              A

                B

      R3   R5   C           

              R1  

              R2

               R3  

                         

             R4  

应变

 

 

 

 

 

                          

 

 

 

   

应变

-800

-520

0

280


 


梁表面应变为:


问答题
2020-07-05 13:32:44
0804
参考答案:       R1 R2    R5  R6     P                                                                                                           R9                                                                                     R10 ...
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 参考答案
科目:测试技术基础
学科:仪器科学与技术