Piezoelectricity Ceramic Macle Actuators

Chart of Piezoelectricity

Chart of macle transmogrification

Ceramic Macle Actuators structure                                  

The product is bonded of two piezoelectricity ceramic flakes which having the same polarization orientation along thichness. Its structure is as the chart. Fixupping one end of the actuator to make up of arm structure, if we bring electric field to bear on the actuator, one ceramic piece will shrink while the other will elongate. The transmutative orientation can be controlled through shifting the link of the positive pole and negative pole. The free end of the actuator will take place flexural displacement. In this structure, transversal piezoelectricity constant d31 features in. All this kind actuator is called d31 twin lamina bend actuator. If the free end displacement is

△Z and the angle displacement is α, at the same time △Z＝0 then the  impedance force Fb can be denoted use the formulary as follows:

S11E is machine pliancy modulus along X axes under the process of the stable electric field E.

L,W,T are separately length、width and highness of the actuators.

The product is mainly used in photoelectricity switch, deflector, piezoelectricity valve and knitting control unit etc.

The characteristic of the product:

Displacement：0.1～2mm。

Fast response：less than 10ms。

Precision：sub-micron grade。

Lower working voltage：≤80V

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