便携式激光器，又称为激光手电。相比于激光笔具有可调焦、脉冲输出、安全尾纤、功率调节等功能。便携式激光器功率大于激光笔，散热性能和电路质量也好于激光笔。便携式激光器已广泛应用于信号传输、医用治疗、天文观测、生物测试、探险搜救、休闲垂钓、舞台表演及娱乐等各个领域。
一种新研制成功便携式以室温半导体激光器为基础的中红外气体敏感器用于测量空气中甲烷浓度。
A portable room temperature diode laser based on mid infrared gas sensor was developed for open path measurements of methane in ambient air.
本文介绍了便携式激光准直仪的工作原理，分析了激光器、PS D信号调理电路及数据采集处理系统的设计。
The principle of portable laser collimator is introduced in this paper and its laser device, PSD signal processing circuits data acquisition are analysed in detail.
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