发明名称 |
DEVICE FOR VIBROACOUSTIC DIAGNOSTICS OF MACHINES |
摘要 |
FIELD: flaw detection. SUBSTANCE: device has vibration signal pickup provided with matching facility and measuring unit. Matching facility is connected to the first input of scaling amplifier connected through low-pass filter and compensated rectifier to diagonally opposite pair of terminals of resistive bridge and to indicator of relation of signal amplitude value to its root-mean-square value. One link of resistive bridge includes thermally-dependent detector. Diagonally opposite pair of bridge terminals is connected through controller to the second control input of scaling amplifier and to input of measuring converter which converts control signal to parameter signal of root-mean-square value at the first input of scaling amplifier. EFFECT: provision for flaw detection at early stage, simplified construction. 5 dwg
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申请公布号 |
RU2125248(C1) |
申请公布日期 |
1999.01.20 |
申请号 |
RU19970101013 |
申请日期 |
1997.01.22 |
申请人 |
VOLGOGRADSKIJ GOSUDARSTVENNYJ TEKHNICHESKIJ UNIVER |
发明人 |
KACHOROVSKIJ A.B.;DIPERSHTEJN M.B. |
分类号 |
G01H17/00;(IPC1-7):G01H17/00 |
主分类号 |
G01H17/00 |
代理机构 |
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