S. Shinohara, H. Naito, H. Yoshida, H. Ikeda, M. Sumi
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High Performance Versatile Semiconductor Laser Diode Doppler Velocimeter
Described is a new, compact vector-velocimeter setup using a self-mixing type laser diode, which without utilizing frequency-offset devices discriminates direction of target motion with velocity range of 23 mm/s to 3.2 m/s. The range of absolute value velocity measured is 0.2 mm/s to 34 m/s .