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Factors to affect the sensitivity of piezoelectric ceramics

Views:7     Author:Site Editor     Publish Time: 2017-10-13      Origin:Site

Factors to affect the sensitivity of piezoelectric ceramics

                                  Factors to affect the sensitivity of piezoelectric ceramics


The sensitivity of the piezo element like disc and clinders is the ratio of the small increments of the output to the small increments of the corresponding input. The specific value is the higher, the sensitivity of piezo disc transducer is the higher.The sensitivity of the piezoelectric sensor is related to the sensitivity ,because three parts are connected in series , the sensitivity of the piezoelectric sensor is multiplied by the sensitivity of the three parts. The following are analyzed from static and dynamic respectively. Static analysis refers to the analysis of the relationship between the input and output of the sensor under steady-state conditions. The output variable is only a function of the input variable.It is effective to increase the sensitivity of the piezoelectric sensor and to increase the value of one or more of the factors. Which has the greatest potential to increase the piezoelectric constant value of the piezoelectric disc ceramic sheet. It can improve the piezoelectric constant of the piezoelectric disc ceramic by adjusting the composition of the piezoelectric ceramic, but also improve the brass piezoelectric transducer disc by the piezoelectric ceramic Constant, such as the piezo cylinder generator is in parallel, the charge sensitivity is double. In addition, selecting properly electrical conditions and also increase the value of the piezoelectric constant, for example,open state of the equivalent piezoelectric constant is more bigger than piezoelectric ceramics in the short circuit of electrical boundary  


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