Cosine with variable frequency and amplitude

Generate a cosine signal with variable frequency and amplitude

 Description The Cosine Variable Frequency and Amplitude (or Variable Cosine Source) component has a real output $y$ that is a cosinusoidal signal whose frequency and amplitude may be varied by real inputs:
 Equations $y=\mathrm{offset}+{\mathrm{amplitude}}_{\mathrm{internal}}\mathrm{cos}\left(\mathrm{\phi }\right)$ $\mathrm{der}\left(\mathrm{\phi }\right)=2\mathrm{\pi }{f}_{\mathrm{internal}}$ ${\mathrm{amplitude}}_{\mathrm{internal}}=\left\{\begin{array}{cc}\mathrm{constantAmplitude}& \mathrm{useConstantAmplitude}\\ \mathrm{amplitude}& \mathrm{otherwise}\end{array}$ ${f}_{\mathrm{internal}}=\left\{\begin{array}{cc}\mathrm{constantFrequency}& \mathrm{useConstantFrequency}\\ f& \mathrm{otherwise}\end{array}$

Connections

 Name Description Modelica ID $y$ Real output signal y $\mathrm{amplitude}$ Amplitude of cosine wave amplitude $f$ frequency of cosine wave f

Parameters

 Name Default Units Description Modelica ID $\mathrm{Use constant amplitude}$ $\mathrm{false}$ Use constant amplitude useConstantAmplitude $\mathrm{Constant amplitude}$ $1$ Constant amplitude constantAmplitude $\mathrm{Use constant frequency}$ $\mathrm{false}$ Use constant frequency useConstantFrequency $\mathrm{Constant frequency}$ $1$ $\mathrm{Hz}$ Constant frequency constantFrequency $\mathrm{offset}$ $0$ Offset of output signal offset

 Modelica Standard Library The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.