Results 181 to 190 of about 4,701 (230)
[Effects of age, atherosclerosis and hypertension on the oscillogram].
Folia medica, 1966 B, Despotov, D, Dimov
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The acceleration-oscillogram method of motor-torque measurement
Electrical Engineering, 1942 The need for an improved method of measuring starting torque of large induction starting synchronous motors as compared to the power input and dynamometer methods, has led to the use of the acceleration oscillogram. A low ripple, permanent magnet type d-c generator is driven by the motor, and traces a time-speed oscillogram, from which acceleration ...
C. R. Atkinson, E. G. Downie
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A Mechanical Harmonic Analyzer for Cathode Ray Oscillograms
Journal of the Optical Society of America, 1927 A mechanical harmonic analyzer is described which will analyze oscillograms obtained from the cathode ray oscillograph when the reference field is sinusoidal. The instrument is adjustable to take care of oscillograms of various sizes. The analyzer can be used also for curves plotted on a uniform base.
C. F. Wiebusch
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USE OF OSCILLOGRAMS IN STUDIES OF THE VOICE
Archives of Otolaryngology - Head and Neck Surgery, 1938 The value of the oscillographic tracing in the study of vocal characteristics is well known, but the acquisition and management of the equipment appear to create a rather formidable problem for one who has little familiarity with such apparatus. Today the microphone and the public address system are so commonly seen that they are seldom noticed.
Robert B. Taft
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Wavelet frequency spectrum analysis of oscillograms
The Analyst, 1999By combining wavelet transform with frequency spectrum analysis, wavelet frequency spectrum analysis of an oscillogram was achieved, based on the wavelet property of extracting useful information. Compared with Fourier frequency spectrum analysis of an oscillogram, this method presents many advantages.
Jianbin Zheng +3 more
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Interpretation of the Speech Oscillogram
The Journal of the Acoustical Society of America, 1966Due to the dynamic nature of sound, it is difficult to observe speech characteristics quantitatively by ear and make precise reproducible measurements unless of a rather coarse nature. However, we can stop the motion and obtain static measurable elements by taking pictures of the sound waves.
Homer Dudley, Everett Aho
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Analysis of Short-Circuit Oscillograms
Transactions of the American Institute of Electrical Engineers, 1941METHODS of analyzing the oscillograms of short circuit currents of synchronous machines, in accordance with the two reaction theory, are presented in this paper. Differences between the results found here and the more generally accepted equations, based on symmetrical components, are pointed out.
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Clinical investigation by the oscillogram of peripheral arteries
American Heart Journal, 1955Abstract An analysis of the oscillograms (tracings of arterial oscillations) of the extremities of 127 subjects, both normal and diseased, is presented. Tracings were made with a specially constructed differential manometer based on the principles of the torsion-tension relationship of a twisted metal band, and utilizing an ordinary blood pressure ...
M G, KETTNER, C, FERRERO, P W, DUCHOSAL
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Breaker performance studied by cathode ray oscillograms
Electrical Engineering, 1935Analyses of cathode ray oscillograms of circuit interruptions reveal characteristics of the circuits that are significant in the study of circuit breaker performance. While a complete analysis of such an oscillogram involves much detailed work, the study of several typical oscillograms reveals the significance of certain types of voltage variations and
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