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What is the relationship between the amplitude and frequency of a sine wave?
Wiki User
∙ 12y ago
They are independent quantities. Amplitude decides the intensity ie energy content of the wave and frequency is different right from amplitude.
If the maximum amplitude,E, is known then the instantaneous amplitude, e, can be found by e=E*sin(2*pi*f*t) where f is the frequency and t is the time in seconds from the start of the sine wave. Note that the angle in brackets is in radians.
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Hi there is no such a term "maximum amplitude". Amplitude itself is the maximum displacement. For a fixed frequency and fixed amplitude, as time passes then the displacement e varies as fractiion of max E. That is all. E is constant and f is another constant. They are not directly related in any way.
Wiki User
∙ 12y ago
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If two sine waves of equal frequency and amplitude are superimposed what is the frequency of the resulting wave What will happen to a particle?
The resulting waveform will have the same frequency as both components although the amplitude will be doubled.
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When two or more waves are at the same place at the same time the resulting effects is called?
I believe you're describing "interference." But I can't be sure with the way you've phrased the question. If you're referring to sound waves, then when two sine waves of equal amplitude and frequency occupy the same space and time, but are at opposite points in their (sine) oscillation, they will interfere perfectly and cancel one another out. However, if those two waves were in the exact same space and time, and at the exact same point in their sine pattern/oscillation, then they would exhibit "constructive interference," and the amplitude of the of the new wave would be the sum of the amplitudes of the two original contributing waves (minus something negligible due to physical constraints)--the frequency would remain constant.
If the time period of a sine wave 2.5 us what is the frequency?
Its' reciprocal. 400 kilohertz.
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"sweep rate" refers to "how fast" you go through a frequency range when performing a vibration test. For example, let's put an equipment on a shaker and see how it responds to a sine excitation having a frequency between 50 and 2000Hz. The rate at which you will vary the frequency between 50 and 2000Hz is called the "sweep rate". It can be measured in Hz/min or octave/min.
What parameter of a sine wave carrier can be modulated?
Amplitude, Frequency and Phase
If two sine waves of equal frequency and amplitude are superimposed what is the frequency of the resulting wave What will happen to a particle?
The resulting waveform will have the same frequency as both components although the amplitude will be doubled.
Sinusoidal pwm generation using modulation index?
Not sure what type of modulation you are looking for, but there are two that can be manipulated, either individually or in conjunction:Frequency modulation index refers to the relation between the sine wave frequency (sine_freq) and the triangle (or saw-tooth) wave frequency (triang_freq).The frequency modulation index is equal to ((triang_freq)/(sine_freq)).Amplitude modulation index refers to the relation between the sine wave amplitude (sine_amp) and the triangle (or saw-tooth) wave amplitude (triang_amp).The amplitude modulation index is equal to ((sine_amp)/(triang_amp)).Varying the modulation index (normally by varying the frequency or amplitude of the triangle wave form) changes that respective modulation index.From personal experience, an appropriate amplitude modulation index for an SPWM waveform should be around 0.8(that is, if the triangle has an amplitude of 10, the sine would have an amplitude of 8). This index should never be equal to 1 (one); it should always be less. A.K.A.: the triangle-wave amplitude should always be greater than the sine-wave.On the other hand, a triangle-wave frequency much greaterthan the sine-wave frequency makes an SPWM that in turn generates a "cleaner" synthesized sine-wave in the H-bridge you are probably using. Try different freq. modulation indexes, but an index of at least 10 should be used (preferably somewhere around 100 if you want a good SPWM). That is, if the sine-wave frequency is 60 Hz, the triangle-wave frequency should be above 600, preferably 6,000 or more. Complications in the filter design in the "output" of the H-bridge will vary greatly when playing around with the frequency modulation index. That being said, keeping the amplitude modulation index at a static 0.8, and playing around with the triangle-wave frequency should be your best bet.
How do you find amplitude in trigonometry?
The amplitude of a sine (or cosine) curve is the difference between the maximum and minimum values of the curve, measured over a whole cycle.
What is the relationship between a swinging pendulum and a sine curve?
Assuming an idealised pendulum with a small amplitude, both are examples of simple harmonic motion. That is, the second derivative of the curve is directly proportional to its displacement but in the opposite direction. If the amplitude (swing) of the pendulum is large or if the majority of its mass is not oi the "blob" the relationship is only approximate.
How sine wave preserves its shape?
Sine waves are a pure frequency, and hence are very stable, when passing through an analog circuit, they will keep their shape but may have their amplitude reduced. In comparison, a square wave has many frequency components, each of which may react differently to a circuit, resulting in a distorted waveform.
What will be the output of differentiator if the input is sine wave?
a phase shifted sine wave of a different amplitude.
What is the relation between sine wave and frequency?
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How can a traveling wave be described mathematically?
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A sine wave is a simple vertical line in the frequency domain because the horizontal axis of the frequency domain is frequency, and there is only one frequency, i.e. no harmonics, in a pure sine wave.
Why the carrier for the amplitude modulation must be a sinusoidal waveform?
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What is rms if sine wave is 20 cm peak to peak?
For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.
