picometer
- 网络皮米;微微米
picometer-
Picometer measurement technique and instrument
皮米测量技术及仪器
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The measurement of piezoelectric properties on commercial PZT bulk indicated that the introduction of lock-in technique , which offered excellent noise rejection , raised the displacement resolution up to picometer order .
对商用压电陶瓷在小信号激励下的压电性能测试表明，数字锁相技术的引入能有效抑制系统噪声，并提高激光多普勒系统的位移检测分辨率，使其达到皮米量级。