By changing the stack position and quantity of the piezoelectricity chip of piezoelectric ceramic sandwich transducer we can make the washing transducer bear two obvious resonance peaks.
通过改变夹心式换能器压电晶片的堆放位置及组数，使超声清洗换能器具有两个明显的谐振峰。
2
Quality control of preparation technique is the key to develop technique performance of the piezoelectric protein sensing chip.
对压电蛋白传感芯片制备工艺进行质量控制，是提高芯片技术性能的关键。
3
Piezoelectric sensors and actuators are adhered to the base material directly, and compose the active vibration control system along with the single chip.