ࡱ > Z \ Y l \ c F [ R s bjbj ΐ ΐ 4 M M M h D D M A = C# C# C# C# w$ ~ $ 4 )% (@ *@ *@ *@ *@ *@ *@ $ B yE B N@ u E% w$ w$ E% E% N@ C# C# 4 @ 14 14 14 E% C# C# (@ 14 E% (@ 14 14 : 9 \ .: C# ƀ M / 9 @ @ 0 A : . E 0 ` E .: .: V E : E% E% 14 E% E% E% E% E% N@ N@ M2 E% E% E% A E% E% E% E% E E% E% E% E% E% E% E% E% E% : WNS5uR^ OahVv/cRKmϑ|~xvz HdW Osyes N lSTT'Yf[5ul]zf[blSUq\ 0 6 3 0 0 9 Xd:N[s[/cRv gHeKmϑg^NS5uR^ OahVv/cRKmϑ|~[S5uR^ OahVvRf[!jWSW,gStۏLN gHevRgv^Ǒ(uupOe^klh[ OahVcؚNte*NKmՋ|~vKmϑ|^TS`'`v^^(uNOSYt-NvvsQnlStKmՋ|~1uS5uR^ OahV0ؚpencǑƖaSSL a b v i e w 2 0 1 0 oN _Ss^SgboNR;N gOSǑƖ0SSpencS0pencnl0eWRgI{-d^N]z[EKm/cv[!jWv^9hncvQ1yr'`$ReQ:w[~ghfKm/c|~ЏL3z[d\O{USwQ g_}YvSibU\'`SSy i'`[sQnx0ؚHe0[ev/cRKmϑ0 sQ.͋: S5uR^ OahV; /cRKmϑZbNhV -NVR{|S: T P 2 1 2 0 0 e.shƋx: A ezS1 0 0 2 - 1 8 4 1 ( 2 0 1 3 ) 0 0 - 0 0 0 0 - 0 0 S t u d y o n v i b r a t i o n m e a s u r e m e n t s y s t e m b a s e d o n p i e z o e l e c t r i c a c c e l e r a t i o n s e n s o r C H E N Zhikun, PANG Peng, WANG Fubin, WANG Yi (College of Electrical Engineering, Hebei United University, Tangshan, Hebei 063009,China) Abstract: In order toachieve the effective measurementof vibration, a vibration measurement systemofpiezoelectric accelerationsensor is constructed; Effective analysis of the mechanical model and the basic principle of the piezoelectric acceleration sensor, using comparison method calibration sensor sensitivity, improved the measuring accuracy and reliability of the whole test system; And using the correlation filtering principle in the signal processing; The test system consists of piezoelectric acceleration sensor, high speed data acquisition card and Labview2010 software development platform; Software functions are mainly signal acquisition,historicaldata reading,data filtering,time domain and frequency domain analysisetc; Set up a experimental model for the practical engineering measurement vibration and according to the spectrum features determine internal defects; The experimental results show that the vibration system is stable, the operation is simple, has a good scalability and portability, and can realize accurate, efficient and real-time vibration measuring. Key words: piezoelectricacceleration sensor; vibration measurement; virtual instrument; _ S5uR^ OahV/fZP:N]zKm/c-Nv͑KmϑCQN;N(uN/cRQQvKmϑؚb-N/cRvϑ