Then the found values V1, Rload and V2 are entered to calculate the output impedance. The load resistance Rload should not be too small, because the output is too heavily burdened and should not be too large, as this will change the voltage very little and leads to measurement errors. ...
This is the acoustical part of how to calculate decibels. It describes the sound pressure, since SPL means sound pressure level. This is somewhat related to the voltage ratios. Another term for voltage is electromagnetic force, or EMF. The force of air pressing against the resistance of the e...
you will need one of the solver suggestions. This also happens if you decide to use a more detailed model, like thermoviscous acoustics, for certain small narrow acoustic regions in order to model losses in greater detail.
Power Factor (PF) is the ratio of working power, measured in kilowatts (kW), to apparent power, measured in kilovolt amperes (kVA). Apparent power, also known as demand, measures the amount of power used to run machinery and equipment during a certain period. It is found by multiplying ...
Note the equation at the bottom of the diagram above: The formula to calculate the voltage out of a voltage divider is:Voltage Out = Voltage In * resistance below the output / total resistanceWe can calculate the voltage out of the voltage divider by multiplying the Voltage in * R2 / (...
This is interpreted as belonging to the regional Q sands Formation. Morphology and architecture One way of visualizing the depositional morphology of an irregular sedimentary surface (e.g. an erosion surface) de- formed by post-depositional structuring (e.g. folding) is to calculate the isopach ...
acoustic pulse at a given location. Thus, in the graph in Figure 5 the vertical scale corresponds to the amplitude (intensity) of the echo from different layers of the specimen; whereas the horizontal axis provides the wave travel time. In this example time delay is used to calculatethe ...
Speaker boundary interference does not only apply to your front wall. Bass waves also reflect off your ceiling, side walls and rear wall, causing comb filtering when they combine with the direct sound from your speakers. In this case we need a more general formula to calculate the cancellation...
It is possible to modify the levels to specific on axis values when importing the model in EASE, or shift the levels of a given amount of dB into the data processing software. If the power feed to speaker is known, using d and the nominal power W applied is it possible to calculate ...
etc. Get to know what kind of response you want from your subwoofer, and then you calculate the volume. To establish the frequency response you want, you will need to calculate the Qtcof the box. Depending on the value of Qtc, the woofer-enclosure system will exhibit a different response...