Study on the measurement of in-plane displacement of solid surfaces by laser Doppler velocimetry

Autor: Li Bin, Yin Chunyong, Liang Jing-Wen
Rok vydání: 1995
Předmět:
Zdroj: Optics & Laser Technology. 27:89-93
ISSN: 0030-3992
DOI: 10.1016/0030-3992(95)93620-7
Popis: Theoretical analysis and experiments prove that there is a random phase error in the measurement of the in-plane displacement of solid surfaces by laser Doppler velocimetry. This error will impede the accuracy of the measurement from being further improved to, for example, the region of several fractions of one order. In addition, the reason for the random signal dropout in the measurement is also studied and a method of extending the range in which the signal is maintained continuous is also given.
Databáze: OpenAIRE