Influence of Installation Errors On the Output Data of the Piezoelectric Vibrations Transducers

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Kozuch, Barbara^1 ; Chelmecki, Jaroslaw^1 ; Tatara, Tadeusz^1

Institute of Structural Mechanics, Faculty of Civil Engineering, Cracow University of Technology, Poland^1

关键词: Calibration error;    Installation error;    International standards;    Light oil;    Operating guidelines;    Output data;    Piezo-electric accelerometers;    Piezoelectric vibration;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/6/062020/pdf
DOI  :  10.1088/1757-899X/245/6/062020

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The paper examines an influence of installation errors of the piezoelectric vibrations transducers on the output data. PCB Piezotronics piezoelectric accelerometers were used to perform calibrations by comparison. The measurements were performed with TMS 9155 Calibration Workstation version 5.4.0 at frequency in the range of 5Hz - 2000Hz. Accelerometers were fixed on the calibration station in a so-called back-to-back configuration in accordance with the applicable international standard - ISO 16063-21: Methods for the calibration of vibration and shock transducers - Part 21: Vibration calibration by comparison to a reference transducer. The first accelerometer was calibrated by suitable methods with traceability to a primary reference transducer. Each subsequent calibration was performed when changing one setting in relation to the original calibration. The alterations were related to negligence and failures in relation to the above-mentioned standards and operating guidelines - e.g. the sensor was not tightened or appropriate substance was not placed. Also, there was modified the method of connection which was in the standards requirements. Different kind of wax, light oil, grease and other assembly methods were used. The aim of the study was to verify the significance of standards requirements and to estimate of their validity. The authors also wanted to highlight the most significant calibration errors. Moreover, relation between various appropriate methods of the connection was demonstrated.