서지주요정보
구리의 복사율 측정연구 = A study on measurement of emissivity of copper
서명 / 저자 구리의 복사율 측정연구 = A study on measurement of emissivity of copper / 박승남.
저자명 박승남 ; Park, Seung-Nam
발행사항 [서울 : 한국과학기술원, 1985].
Online Access 원문보기 원문인쇄

소장정보

등록번호

4103340

소장위치/청구기호

학술문화관(문화관) 보존서고

MAP 8510

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Emissivity is a fundamental property of materials which is an important parameter to determine the accuracy of measurement of temperature by radiation thermometers. In this study, emissivity of copper is measured by radiomatric emissivity methods and this method makes the large error of emissivity when the real temperature is measured by radiation thermometers, which is brought on imperfection of internal blackbody cavity in the sample. However, when the real temperature is measused by reference thermocople, the measured value of emissivity are in agreement with those of earlier studies. The measured spectral emissivity of copper with polished surface is 0.105 ± 0.004 at effective wavelength 650 nm, which increases to 0.7 as oxidizing and spectral emissivity at effective wavelength 910 nm is 0.031 ± 0.005. The dependence of emissivity on temperature is not detected on temperature range of 800-1000℃. The spectral emissivity at effective wavelength 2.9㎛ is linearly increasing with temperature. The measured emissivity is 0.04(at 700℃) with temperature coefficient $1 × 10^{-5}/℃$, which is larger than calculated value. The emissivity of rough surface larger than that of polished because of increase of diffuse reflection.

서지기타정보

서지기타정보
청구기호 {MAP 8510
형태사항 [v], 68 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Seung-Nam Park
지도교수의 한글표기 : 이승희
지도교수의 영문표기 : Chung-Hi Rhee
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 66-68
주제 Emissivity.
Temperature measurements.
구리. --과학기술용어시소러스
방사 효율. --과학기술용어시소러스
온도 측정. --과학기술용어시소러스
Copper.
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