Метрология, стандартизация и сертификация. Акмайкин Д.А. - 105 стр.

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МГУ им. Невельского | Владивосток

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105
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#!)  ((& &!) #! ! )) $:
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. . !"!&! (#!":
),cos()2()(
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# " $, # &# *#-!) '0"
#& )#)) !" *&!" ,+!!
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   #!!! "!&!/ #! (,!#) ( -
 +!#!):
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0 *".   &# *#-!)
)cos(
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(2+!! e), . . #! (#-!) (/!. 9$
1,1
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− "(#! ! ,* 2+!!. 
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                                             #     !                          -       ( #)                   ! -
 "               !                  ,   +!. ( #)                              # =, " - (                     ! $
  #            !)                   ( ( &       & !)                            #! !   ) )                 $ :
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          f (ϕ ) = (a0 2) =                  ( ak cos kϕ + bk sin kϕ ),
                                    k =1

      a0 2 −          #              &#               *# - !); a k , bk −                   2,,!+!             )
      $ k-            "    ! !; k – ( )                                   "                 #).0           "       !-
!.
           )          $ " -                  (             ! $        -           !
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          f (ϕ ) = (c0 2) +                  ck cos(kϕ + ϕ k ),
                                    k =1

      ck − "(#!                    k−            "     ! !; ϕ k −         & #$ ) , * .
                +!) f (ϕ )                  (        #)      )            (            $.    #!&!      ck ( ( -
      "(#!           ) ! ϕk ( (                      , *).
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. .       !       "       !& ! ( #! ":
                                        n
          f (ϕ ) = (c0 2) +                  ck cos(kϕ + ϕ k ),
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  n–( )                              "     1     " ! ! ( #! " .
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# & ) #)              )              !" * & ! " ,  +!! f (ϕ ) * ( ! T 2π , (-
      #) " "              ) ! "                      ' *                      )      &     0                   *" -
                      #! !!   "                      !&      !/       #            ! ( ,!#) (                     -
  +!#!           ):
                               2π
          c 0 2 = (1 2π ) f (ϕ )dϕ .
                               0

               !" ' * ", c 0 2                        $(          )       )             #).0 )         #        !)
      0          *"        .                     &#          *# - !) c1 cos(ϕ +ϕ 1)                    -            -
    (     ! +        0 !) 0′     " !& !" +                                                         "   & !) 0
(2 +      ! !  e), . .  #    !     ( # - !) (                                                  /       !. 9 $
  c1,ϕ1 − "(#!    !, * 2 +     ! !    .

                                                                                                                105

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