On the determination of dynamic errors for rise time measurement with an oscilloscope

1999 ◽  
Vol 48 (6) ◽  
pp. 1103-1107 ◽  
Author(s):  
C. Mittermayer ◽  
A. Steininger
Keyword(s):  
Rise Time ◽  
Time Measurement ◽  
Dynamic Errors

Cathodoluminescence of SiO2/Si System

2009 ◽  
Vol 156-158 ◽  
pp. 487-492 ◽  
Author(s):  
M.V. Zamoryanskaya
Keyword(s):  
Activation Energy ◽  
Electron Beam ◽  
Rise Time ◽  
Silicon Oxide ◽  
Beam Current ◽  
Electron Beam Current ◽  
Electron Traps ◽  
Definition Of ◽  
Luminescent Centers

In this paper the new method for determination of luminescent centers concentration are discussed. While the possibility of electron traps determination and definition of its activation energy are suggested. The cathodoluminescent (CL) method was used. The determination of luminescent centers concentration in silicon oxide is based on the measurements of dependences of CL intensity on electron beam current. The presence and energy of activation of electron traps were studied by measurement of rise time and decay of luminescent band during the stationary irradiation of silica by electron beam.

Determination of source parameters of small earthquakes from P-wave rise time

1973 ◽  
Vol 63 (2) ◽  
pp. 599-614 ◽  
Author(s):  
M. E. O'Neill ◽  
J. H. Healy
Keyword(s):  
Rise Time ◽  
Source Parameters ◽  
P Wave ◽  
Simple Method ◽  
Zero Crossing ◽  
Basic Measurement ◽  
Earthquake Source Parameters ◽  
Short Period ◽  
Stress Drops

abstract A simple method of estimating source dimensions and stress drops of small earthquakes is presented. The basic measurement is the time from the first break to the first zero crossing on short-period seismograms. Graphs relating these measurements to rise time as a function of Q and instrument response permit an estimate of earthquake source parameters without the calculation of spectra. Tests on data from Rangely, Colorado, and Hollister, California, indicate that the method gives reasonable results.

A simple recording head write field rise time measurement

1996 ◽  
Vol 32 (5) ◽  
pp. 3521-3523 ◽  
Author(s):  
T.C. Arnoldusse ◽  
C. Vo ◽  
M. Burleson ◽  
J.-G. Zhui
Keyword(s):  
Rise Time ◽  
Time Measurement ◽  
Recording Head

A pulse-processor based on rise time measurement of trapezoidal waveforms by using a count-up ADC

1996 ◽  
Vol 43 (3) ◽  
pp. 1626-1628
Author(s):  
M. Kuwata ◽  
H. Maeda ◽  
K. Husimi ◽  
S. Ohkawa ◽  
M. Iwasaki ◽  
...  
Keyword(s):  
Rise Time ◽  
Time Measurement

Geographic Variation in Calls of Males and Determination of Species Boundaries in Tetraploid Frogs of the Australian Genus Neobatrachus (Myobatrachidae)

1997 ◽  
Vol 45 (2) ◽  
pp. 95 ◽  
Author(s):  
J. D. Roberts
Keyword(s):  
Geographic Variation ◽  
Pulse Duration ◽  
Pulse Rate ◽  
Rise Time ◽  
South Australia ◽  
Dominant Frequency ◽  
Advertisement Call ◽  
Eastern Australia ◽  
The Status

I analysed geographic variation in advertisement call of tetraploid forms of Neobatrachus. Comparing five regional samples spanning the range of N. kunapalari, there was significant geographic variation in pulses per call but not in dominant frequency, pulse rate, pulse duration or percentage rise time. The call of N. kunapalari was significantly different from four other samples covering the geographic range of tetraploid forms across Australia in all but percentage rise time. Calls of frogs from Mt Magnet in Western Australia (WA) differed from calls from Port Hedland (WA) in pulse duration and in multivariate descriptions but were similar in pulse rate. Pulse rates of calls from N. centralis on Eyre Peninsula in South Australia (SA) were distinct from all other populations sampled but in multivariate space these calls were similar to calls of N. sudellifrom eastern Australia. There may be an eastwest cline in call from N. sudelli to calls of N. aquilonius and N. centralis in WA. Call data support the recognition of two tetraploid species: N. kunapalari and N. sudelli. N. sudelli exhibits geographic variation in call, but the status of N. aquilonius and N. centralis as possible synonyms of N. sudelli was not resolved.

17 ps rise-time measurement by photoemission sampling

1987 ◽  
Vol 23 (5) ◽  
pp. 249-250 ◽  
Author(s):  
A. Blacha ◽  
R. Clauberg ◽  
H.K. Seitz ◽  
H. Beha
Keyword(s):  
Rise Time ◽  
Time Measurement

Thales and the Diameter of the Sun and Moon

1956 ◽  
Vol 76 ◽  
pp. 105-105
Author(s):  
A. Wasserstein
Keyword(s):  
Small Angle ◽  
Mathematical Knowledge ◽  
Time Measurement ◽  
Angular Measurement ◽  
The Sun ◽  
The Moon ◽  
Actual Measurement ◽  
Greek Philosopher ◽  
Mathematical Techniques

In Vol. LXXV (1955) of the JHS I suggested that the determination of the angular diameters of the sun and the moon ascribed to Thales (Diog. Laertius I. 24) may have been obtained by angular measurement, not as is generally supposed by time-measurement. However, the question of the precise technical method that may have been employed was left open. To measure a very small angle with any degree of accuracy is obviously not easy; and a combination of actual measurement with calculation is probably necessary. In what follows I describe a method of measuring very small angles: whether this was the method employed in obtaining the result ascribed to Thales I do not know; all I can claim is that it presupposes neither mathematical knowledge nor mathematical techniques which could not have been at the disposal of an early Greek philosopher-mathematician.

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