LASER DOPPLER DISPLACEMENT MEASUREMENT.

被引：0

作者：

Wang, Charles P. ^{[1
]}

机构：

[1] Optodyne Inc, Compton, CA, USA, Optodyne Inc, Compton, CA, USA

来源：

| 1987年 / 6卷 / 09期

关键词：

DOPPLER EFFECT - Applications - INTERFEROMETERS - RADAR - Measurements;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Based on current developments in laser radar technology, a new device, a Laser Doppler Displacement Meter (LDDM) has been developed. This device is an electro-optical assembly, which uses the Doppler shift of a laser frequency caused by the movement of a target to measure displacement accurately over a range of a few meters. The LDDM consists of a laser head, a retro-reflector, a processor and a display. Using the latest in microelectronic, electro-optic and optical heterodyning technologies, an LDDM provides a high-precision and low-cost alternative to submicrometer positioning. The key feature of the LDDM is that its performance compares with that of a laser interferometer, while its price compares with that of a linear encoder.

引用

页码：69 / 71

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