Raising the precision of double-channel circuits for measuring time intervals by means of the digital-electronic method

1972 ◽  
Vol 15 (4) ◽  
pp. 584-587
Author(s):  
G. A. Podunaev ◽  
A. A. Os'minin
1960 ◽  
Vol 9 (2) ◽  
pp. 221-225 ◽  
Author(s):  
R.W. Findley ◽  
R.A. Reiter ◽  
T.A. Romanowski

1999 ◽  
Vol 121 (3) ◽  
pp. 468-472 ◽  
Author(s):  
Takeo Yoshioka ◽  
Atsushi Korenaga ◽  
Hiroki Mano ◽  
Takashi Yamamoto

We have developed a new method for measuring time intervals of Acoustic Emission (AE) generation for diagnosis of a radial rolling bearing. The method makes the AE signal itself a trigger of the oscillation of the clock pulse and measures the time interval of AE generation by integration of the clock pulses. The measurement device consists of the threshold, clock, time interval measurement and memory circuit, and was applied to rolling contact fatigue experiments. It was confirmed by the experiments that the measured time intervals of AE generation on the inner raceway or the ball agreed with the value calculated based on the kinetics of the rolling bearing. Moreover, we could identify the elements in which a fatigue crack was propagating by the method before the spalling appeared. The identified elements agreed with the failed elements.


1971 ◽  
Vol 14 (10) ◽  
pp. 1606-1607
Author(s):  
E. G. Lebed'ko ◽  
F. I. Khautyn ◽  
G. A. Aver'yanov

1980 ◽  
Vol 23 (9) ◽  
pp. 817-820 ◽  
Author(s):  
N. R. Karpov

1964 ◽  
Vol 7 (7) ◽  
pp. 593-596
Author(s):  
V. N. Glushenkov

1973 ◽  
Vol 16 (2) ◽  
pp. 214-219
Author(s):  
E. �. Goller ◽  
A. Ya. Sidorin

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