n.[物]零差
网络 零拍; 零差法; 同步检波
Using the way of homodyne coherent detection, a fiber laser Doppler vibrometer is designed and completed.
采用零差的相干探测方式,设计并实现了一套光纤结构的激光多普勒振动计。
An alternating current phase tracking (PTAC) homodyne scheme has been used to process output signal of the Michelson interferometer.
在信号处理过程中采用了交流相位跟踪零差补偿技术(PTAC)。
The shot noise and thermal noise with homodyne demodulation technique is given in this article. And phase noise induced with different time delay is also analyzed.
给出了采用零差解调技术时干涉系统的散粒噪声和热噪声,并且分析了在不同时间延迟情况下的相位噪声。
With the former experience and up to date technology about homodyne interferometer detection, a kind of automatically scaling system on laser speckle radar is developed.
结合最新的零差式干涉探测技术,初步研制出激光散斑分辨雷达自动测量系统。
A laser huge pulse irradiates on aluminium plates to cause ultrasonic waves. The waveform of the rear surface displacement produced by ultrasounds is detected with optical homodyne.
激光巨脉冲在金属铝块上产生超声波,由光学零差探测得到超声引起的后表面位移的波形。