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Oscilloscope - Measuring Period and Frequency

Moving the beam at a faster rate generates a graph that can be displayed as lines. The movement of the electron beam on horizontal axes at a constant rate generates a graph of voltage versus time. Each oscilloscope has different arrangement of controls but every oscilloscope uses the same components allowing the user to interact with any model.
             This experiment was designed to introduce the oscilloscope as a measuring instrument. The oscilloscope is one of the common used tools to measure qualitative and quantitative measurements of voltage, frequency, phase and other measurements. .
             In the present experiment three human produced sounds (hum, whistle and open moth note) were measured and the period of the signal from the oscilloscope was compared with calculated period and the percent of discrepancy was calculated. Same procedure was used to measure the period of the signal generated by the 2 tuning forks (480Hz and 512 Hz). The period was obtained by dividing the number of divisions by the sweep rate. The standard speed of sound at normal temperature and pressure is 34000 cm/s. The average measured speed of sound in this experiment was the slope of the graph between distance and time. The value of measured speed of sound was 35903 cm/s. The percent discrepancy between the two values is 5.59 % (1,3 from the oscilloscope info paper). The value for the speed of sound obtained experimentally is different from the standard value because there are factors that influence the experiment result. These factors are different than the standard conditions and therefore they affect the result. Temperature is probably the most important factor in sound propagation because heat is a form of energy and it affects how the molecules vibrate therefore sound waves can travel faster. Analyzing the value we can conclude that the temperature was higher than at the standard conditions. Other factors are the quality and the precision of the tools used to measure in this experiment.


Essays Related to Oscilloscope - Measuring Period and Frequency

1. Components of Sequential Logic

After testing the circuit, we found that the frequency was in actuality 1.099 KHz. ... We used the oscilloscope to monitor the input (D) and the output (Q) while triggering the oscilloscope on the input signal. We then changed the trigger source to the clock (using the external trigger input of the oscilloscope). ... Analysis and Conclusion: When the oscilloscope is triggered to the input signal, the output was jittery because of the slight misalignment of the frequencies. ... Thus, the output signal isn't triggered properly because the clock and the input combine to create a frequency t...

  • Word Count: 844
  • Approx Pages: 3
  • Grade Level: High School

2. Earthquakes

Body waves lose energy faster because they have shorter periods than surfaces waves and earth attenuates high frequency (short period) waves faster. ... High Frequency: Short period, T = 1 sec = Body waves. ... Low Frequency: Long period, T = 20 sec = Surface waves. 3. ... Measuring surface deformation. 2. ... Measuring the Size of Earthquakes A. ...

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3. The Effects of Lucid Dreaming on the Frequency of Nightmares

Running head: The Effects of Lucid Dreaming on the Frequency of Nightmares The Effects of Lucid Dreaming on the Frequency of Nightmares Abstract Six patients were offered treatment with the major focus on alleviating nightmares. ... Unfortunately few controlled studies have been conducted in the effects of lucid dreaming on the frequency of nightmares. ... Method Participants Six of the 68 non-psychotic patients, who were seen in a psychiatry emergency room during the midnight shift over a three month period who reported nightmares volunteered to participate in our study. ... T...

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4. the simple pendulum

The number of oscillations in a given time (usually a second) is called the FREQUENCY (vibrations per second are given the unit of the HERTZ or Hz.). There are three types of oscillation: Free oscillation: - this is when a body oscillates with its own natural frequency. ... The pendulum has been used as a precise time measuring device since early in recorded history. ... The frequency f of the oscillations is the number of oscillations that occur per unit time and is the reciprocal of the period, f = 1/T. Similarly, the period is the inverse of the frequency, T = l/f. ...

  • Word Count: 5681
  • Approx Pages: 23
  • Grade Level: High School

5. Contrast Sensitivity Function

Comparing the use and accuracy of an arcade game for Measuring the Contrast Sensitivity Function. ... The most widely used measure of visual resolution is visual acuity. ... This was a repeated measure design as there was more than one measurement from each subject. ... The graph shows the relation between sensitivity and spatial frequency at varying levels of spatial frequency. ... The measure of 69.359 was significantly lower than that of 100. ...

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6. Cardiovascular Fitness

One must measure the amount of beats per ten seconds using a watch. ... The duration and frequency of a workouts depends on many factors. ... Duration also is affected by frequency. Frequency is how often someone exercises. ... Interval training includes doing an activity hard for a period of time, and then doing it slow for a period of time. ...

  • Word Count: 722
  • Approx Pages: 3
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7. Statistics

Relative frequency distribution: It is obtained by dividing the frequency of that category by the sum of all frequencies. ... I.3 Cumulative frequency distribution:. ... Measures of Dispersion The measures of central tendency do not show us the entire picture of the distribution of the data set. ... Measures of dispersion show the size of the fluctuation ( variability ) in the data values. ... b) A-measure (Pearson-measure): A= =0,0229 The A-measure is bigger than zero so it also proofs the right skeweness of the distribution. ...

  • Word Count: 2276
  • Approx Pages: 9
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  • Grade Level: High School

8. A MiniReport on Time and It

Time can either be discussed as a period that goes on for eternity, or as a single period that stops at a certain date (i.e. the Ice Age). ... Even before we could measure it with certain devices, we could see it from night until day. Time moves and it can not be stopped. 2) Many years ago, ancient cultures found different ways to measure time. ... Hour glass were used to measure short periods of time, such as cooking, speeches, or sermons. ... The NIST "defines the period of 'one second' as exactly '9,192,631,770 Oscillations' or '9,192,631,770 Cycles of the Cesium ...

  • Word Count: 1128
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