Page 89 - sss_Neat
P. 89

−6
                        1 × 10  W/m   2









                                                           
                                                 = 10 log
                                                           0
                                                     1×10 −6  W/m 2
                                            = 10 log
                                                      10 −12  W/m 2
             = 100 buah mesin
                                            = 10 log 10 6
                     −6
             = 1 × 10  W/m   2
                                            = 10 (6) = 60 dB

                    100  =?



                                                 =      + 10 log   
                                                 
                                                     1
                                            = 60 dB + 10 log 100
                                            = 60 dB + 10(2)
                              
                    = 10 log                = 60 dB + 20 = 80 dB
                               0


                                                                80 dB.

                  =      + 10 log   
                      1
                  
   84   85   86   87   88   89   90   91   92   93   94