发明名称 |
PROCESS OF DETECTION OF GAS-SATURATED LAYERS ON TITANIUM ALLOYS AND DEVICE FOR ITS IMPLEMENTATION |
摘要 |
FIELD: nondestructive testing. SUBSTANCE: in agreement with invention value of frequency of excitation voltage of eddy current converter is set less than 20 Mhz. Eddy current converter is placed in series oscillatory circuit with adjustable capacitor and resistor. After detection output voltage U<SB>out</SB> of circuit is amplified and fed into indicator. Values of capacitance and resistance are chosen from condition: phase &; of output voltage of circuit equals 1 var, amplitude U<SB>cir</SB> of output voltage is constant under action of change of electric conductivity of flawless sections of tested articles. EFFECT: improved authenticity of process and device. 2 cl, 4 dwg , 6 tbls
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申请公布号 |
RU2115115(C1) |
申请公布日期 |
1998.07.10 |
申请号 |
RU19930006588 |
申请日期 |
1993.02.03 |
申请人 |
MITJURIN VLADIMIR SERGEEVICH |
发明人 |
MITJURIN VLADIMIR SERGEEVICH |
分类号 |
G01N27/90;(IPC1-7):G01N27/90 |
主分类号 |
G01N27/90 |
代理机构 |
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主权项 |
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地址 |
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