CAJ | 학술논문

为了减小测量装置的谐振法测量中由压电陶瓷引入的损耗误差，采用对压电陶瓷驱动信号补偿的办法进行线性化。谐振法测量中需要使用压电陶瓷驱动扫频激光实现损耗检测，压电陶瓷形变非线性会导致模间距 T产生误差，损耗值与模间距 T成反比，损耗计算中会出现误差，因此压电陶瓷驱动信号需要经过线性化处理，减小在任何位置出的模中的模间距 T的误差。实验结果表明：对压电陶瓷进行线性化，使接收到的功率谱信号模间距 T的误差从±275（10％）降低至±50（2％），降低了损耗测量误差。
위료감소측량장치적해진법측량중유압전도자인입적손모오차，채용대압전도자구동신호보상적판법진행선성화。해진법측량중수요사용압전도자구동소빈격광실현손모검측，압전도자형변비선성회도치모간거 T산생오차，손모치여모간거 T성반비，손모계산중회출현오차，인차압전도자구동신호수요경과선성화처리，감소재임하위치출적모중적모간거 T적오차。실험결과표명：대압전도자진행선성화，사접수도적공솔보신호모간거 T적오차종±275（10％）강저지±50（2％），강저료손모측량오차。
In order to reduce the error of resonance measurement device introduced by the measurement of piezoelectric ceramics ,the drive signal of piezoelectric ceramics is compensated to achieve the linearization .Resonance measurement requires the use of piezoelectric actuators to realize losses swept of laser detection .Piezoelectric nonlinear deformation leads an error of mode interval T ,the loss is inversely proportional to the value of the mode interval T .Error will appear with the loss calculation .The piezoelectric drive signal is linearized to reduce the error at any position in the mode interval T .The experimental results show that the linearization of piezoelectric ceramic makes the error of mode interval T of the power spectrum signal reduce from ± 275 (10% ) to ± 50 (2% ) ,so the loss errors are reduced .