손정영 최용진 전형욱 2024-01-13T00:01:19Z 2024-01-13T00:01:19Z 1996-09-06 https://pubs.kist.re.kr/handle/201004/99851 LDV방식과　시차방식을　결합　이용한 유체속도　측정장치　및　방법 Patent 1996-09-06 1994-02-08 0104505 1994-0002419 KO 특허 한국과학기술연구원