| 摘要 |
A liquid transport apparatus includes: a channel unit; a piezoelectric actuator which applies a pressure to a liquid in a pressure chamber and which has a first and a second piezoelectric layers, a first, a second, and a third electrodes, the first piezoelectric layer covering the pressure chamber and polarized in a thickness direction, the second piezoelectric layer being joined to a surface of the first piezoelectric layer and polarized in a thickness direction, the first electrode being formed on a surface of the first piezoelectric layer, the second electrode being formed on a surface of the second piezoelectric layer, the third electrode being formed between the first piezoelectric layer and the second piezoelectric layer; a driving mechanism which drives the piezoelectric actuator and which has a potential applying mechanism applying potentials to the first, second, and third electrode respectively, and a controller controlling the potential applying mechanism.
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