发明名称 |
SURFACE ROUGHNESS MEASURING METHOD |
摘要 |
FIELD: measurement technology; mechanical engineering. SUBSTANCE: high voltage is applied between surface of part which serves as anode and cathode. Width of frequency spectrum of discharge alternating-current component is measured by level of 0.2-0.5 of operating voltage. Roughness of surface is determined by formula <EMI ID=0.170 HE=6 WI=21 TI=CHI>, where R<SB>a</SB> is surface roughness; k is proportionality coefficient; f is measured spectrum width; R<SB>o</SB> is empirical parameter. Values k and R<SB>o</SB> are calculated by calibration curve of roughness dependence from spectrum width. Method allows determination of part surface roughness directly in process of part machining. EFFECT: enhanced accuracy of determination. 1 dwg, 1 tbl
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申请公布号 |
RU2133943(C1) |
申请公布日期 |
1999.07.27 |
申请号 |
RU19970116219 |
申请日期 |
1997.09.29 |
申请人 |
J UNIVERSITET;UNI J |
发明人 |
AMIRKHANOVA N.A.;NEV'JANTSEVA R.R.;IZMAJLOVA N.F.;TIMERGAZINA T.M.;PARFENOV E.V. |
分类号 |
G01B7/34;(IPC1-7):G01B7/34 |
主分类号 |
G01B7/34 |
代理机构 |
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地址 |
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