Applets:Periodendauer periodischer Signale: Difference between revisions
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padding:0em; | padding:0em; | ||
border: 1px solid black; | border: 1px solid black; | ||
grid-template-columns:repeat(2); | |||
} | } | ||
.wrapper2 >div:nth-child(odd){ | |||
} | |||
.box4{ | .box4{ | ||
| Line 63: | Line 65: | ||
</head> | </head> | ||
<body> | <body> | ||
| Line 76: | Line 79: | ||
<div id="container2"> | <div id="container2"> | ||
<div id=" | <div id="cnfBoxHtml" class="jxgbox" style="width:600px; height:100px;border:1px solid black;"></div> | ||
</div> | </div> | ||
| Line 82: | Line 85: | ||
<div id="container3"> | <div id="container3"> | ||
<div id="pltBoxHtml" class="jxgbox" style="width:600px; height:600px; border:1px solid black;"></div> | |||
</div> | </div> | ||
| Line 93: | Line 96: | ||
<div class="wrapper2"> | <div class="wrapper2"> | ||
<div > | |||
<table> | |||
<tr> | |||
<td>$x(t)$= <span id="x(t)"></span> $\quad$ </td> | |||
<td>$x(t+ T_0)$= <span id="x(t+T_0)"></span> $\quad$ </td> | |||
<td>$x(t+2T_0)$= <span id="x(t+2T_0)"></span> $\quad$ </td> | |||
<td>$x_{\text{max}}$= <span id="x_max"></span> $\quad$ </td> | |||
<td style="color:blue;">$T_0$= <span id="T_0"></span> $\quad$ </td> | |||
</tr> | |||
</table> | |||
</div> | |||
<div > | <div > | ||
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</div> | </div> | ||
<script type="text/javascript"> | |||
<script> | // Grundeinstellungen der beiden Applets | ||
pltBox = JXG.JSXGraph.initBoard('pltBoxHtml', { | JXG.Options.text.useMathJax = true; | ||
cnfBox = JXG.JSXGraph.initBoard('cnfBoxHtml', { | |||
showCopyright: false, showNavigation: false, axis: false, | |||
grid: false, zoom: { enabled: false }, pan: { enabled: false }, | |||
}); | boundingbox: [-1, 2.2, 12.4, -2.2] | ||
}); | |||
pltBox = JXG.JSXGraph.initBoard('pltBoxHtml', { | |||
showCopyright: false, axis: false, | |||
zoom: { factorX: 1.1, factorY: 1.1, wheel: true, needshift: true, eps: 0.1 }, | |||
grid: false, boundingbox: [-0.5, 2.2, 12.4, -2.2] | |||
}); | |||
cnfBox.addChild(pltBox); | |||
// Einstellungen der Achsen | |||
xaxis = pltBox.create('axis', [[0, 0], [1, 0]], { | |||
name: '$\\dfrac{t}{T}$', | |||
withLabel: true, label: { position: 'rt', offset: [-25, -10] } | |||
}); | |||
yaxis = pltBox.create('axis', [[0, 0], [0, 1]], { | |||
name: '$x(t)$', | |||
withLabel: true, label: { position: 'rt', offset: [10, -5] } | |||
}); | |||
// Erstellen der Schieberegler | |||
sldA1 = cnfBox.create('slider', [ [-0.7, 1.5], [3, 1.5], [0, 0.5, 1] ], { | |||
suffixlabel: '$A_1=$', | |||
unitLabel: 'V', snapWidth: 0.01 | |||
}), | |||
sldF1 = cnfBox.create('slider', [ [-0.7, 0.5], [3, 0.5], [0, 1, 10] ], { | |||
suffixlabel: '$f_1=$', | |||
unitLabel: 'kHz', snapWidth: 0.1 | |||
}), | |||
sldPHI1 = cnfBox.create('slider', [ [-0.7, -0.5], [3, -0.5], [-180, 0, 180] ], { | |||
suffixlabel: '$\\phi_1=$', | |||
unitLabel: 'Grad', snapWidth: 5 | |||
}), | |||
sldA2 = cnfBox.create('slider', [ [6, 1.5], [9.7, 1.5], [0, 0.5, 1] ], { | |||
suffixlabel: '$A_2=$', | |||
unitLabel: 'V', snapWidth: 0.01 | |||
}), | |||
sldF2 = cnfBox.create('slider', [ [6, 0.5], [9.7, 0.5], [0, 2, 10] ], { | |||
suffixlabel: '$f_2=$', | |||
unitLabel: 'kHz', snapWidth: 0.1 | |||
}), | |||
sldPHI2 = cnfBox.create('slider', [ [6, -0.5], [9.7, -0.5], [-180, 90, 180] ], { | |||
suffixlabel: '$\\phi_2=$', | |||
unitLabel: 'Grad', snapWidth: 5 | |||
}), | |||
sldT = cnfBox.create('slider', [ [-0.7, -1.5], [3, -1.5], [0, 0, 10] ], { | |||
suffixlabel: '$t=$', | |||
unitLabel: 's', snapWidth: 0.2 | |||
}), | |||
// Definition der Funktion | |||
signaldarstellung = pltBox.create('functiongraph', [function(x) { | |||
return (sldA1.Value() * Math.cos(2 * Math.PI * sldF1.Value() * x - 2 * Math.PI * sldPHI1.Value() / 360) + sldA2.Value() * Math.cos(2 * Math.PI * sldF2.Value() * x - 2 * Math.PI * sldPHI2.Value() / 360)) | |||
}], { | |||
strokeColor: "red" | |||
}); | |||
// Definition des Punktes p_T0, des Hilfspunktes p_T0h und der Geraden l_T0 für Periodendauer T_0 | |||
p_T0 = pltBox.create('point', [ | |||
function() { | |||
return (Math.round(getT0() * 100) / 100); | |||
}, | |||
function() { | |||
return sldA1.Value() * Math.cos(2 * Math.PI * sldF1.Value() * (Math.round(getT0() * 100) / 100) - 2 * Math.PI * sldPHI1.Value() / 360) + | |||
sldA2.Value() * Math.cos(2 * Math.PI * sldF2.Value() * (Math.round(getT0() * 100) / 100) - 2 * Math.PI * sldPHI2.Value() / 360); | |||
}], | |||
{ color: "blue", fixed: true, label: false, size: 1, name: '' } | |||
); | |||
p_T0h = pltBox.create('point', | |||
[function() { return (Math.round(getT0() * 100) / 100); }, 2], | |||
{ visible: false, color: "blue", fixed: true, label: false, size: 1, name: '' } | |||
); | |||
l_T0 = pltBox.create('line', [p_T0, p_T0h]) | |||
// Bestimmung des Wertes T_0 mit der Funktion von Siebenwirth | |||
setInterval(function() { | |||
document.getElementById("T_0").innerHTML = Math.round(getT0() * 100) / 100; | |||
}, 50); | |||
function isInt(n) { | |||
return n % 1 === 0; | |||
} | |||
function getT0() { | |||
var A, B, C, Q; | |||
if (sldF1.Value() < sldF2.Value()) { | |||
A = sldF1.Value(); | |||
B = sldF2.Value(); | |||
} else { | |||
B = sldF1.Value(); | |||
A = sldF2.Value(); | |||
} | |||
// console.log('Berechne T0 mit A=' + A, 'B=' + B); | |||
for (var x = 1; x <= 100; x++) { | |||
C = A / x; | |||
Q = B / C; | |||
// console.log(x + '. Durchgang: C = ' + C, 'Q = ' + Q); | |||
if (isInt(Q)) { | |||
// console.log('Q ist eine Ganzzahl!!! T0 ist damit ', 1 / C); | |||
return 1 / C; | |||
} | |||
if (x === 10) { | |||
return 10; | |||
} | |||
if ((1 / C) > 10) | |||
return 10 | |||
} | |||
} | |||
// Ausgabe des Wertes x(t) | |||
setInterval(function() { | |||
document.getElementById("x(t)").innerHTML = Math.round((sldA1.Value() * Math.cos(2 * Math.PI * sldF1.Value() * sldT.Value() - 2 * Math.PI * sldPHI1.Value() / 360) + sldA2.Value() * Math.cos(2 * Math.PI * sldF2.Value() * sldT.Value() - 2 * Math.PI * sldPHI2.Value() / | |||
360)) * 1000) / 1000; | |||
}, 50); | |||
// Ausgabe des Wertes x(t+T_0) | |||
setInterval(function() { | |||
document.getElementById("x(t+T_0)").innerHTML = Math.round((sldA1.Value() * Math.cos(2 * Math.PI * sldF1.Value() * (sldT.Value() + Math.round(getT0() * 1000) / 1000) - sldPHI1.Value()) + sldA2.Value() * Math.cos(2 * Math.PI * sldF2.Value() * (sldT.Value() + | |||
Math.round(getT0() * 1000) / 1000) - sldPHI2.Value())) * 1000) / 1000; | |||
}, 50); | |||
// Ausgabe des Wertes x(t+2T_0) | |||
setInterval(function() { | |||
document.getElementById("x(t+2T_0)").innerHTML = Math.round((sldA1.Value() * Math.cos(2 * Math.PI * sldF1.Value() * (sldT.Value() + 2 * Math.round(getT0() * 1000) / 1000) - sldPHI1.Value()) + sldA2.Value() * Math.cos(2 * Math.PI * sldF2.Value() * (sldT.Value() + | |||
2 * Math.round(getT0() * 1000) / 1000) - sldPHI2.Value())) * 1000) / 1000; | |||
}, 50); | |||
// Ausgabe des Wertes x_max | |||
setInterval(function() { | |||
var x = new Array(50000); | |||
for (var i = 0; i < 50001; i++) { | |||
x[i] = Math.round((sldA1.Value() * Math.cos(2 * Math.PI * sldF1.Value() * (i / 1000) - 2 * Math.PI * sldPHI1.Value() / 360) + sldA2.Value() * Math.cos(2 * Math.PI * sldF2.Value() * (i / 1000) - 2 * Math.PI * sldPHI2.Value() / 360)) * 1000) / 1000; | |||
} | |||
document.getElementById("x_max").innerHTML = Math.max.apply(Math, x); | |||
}, 50); | |||
}; | |||
// Definition der Funktion zum An- und Ausschalten des Koordinatengitters | |||
function showgrid() { | |||
if (gridbox.checked) { | |||
xaxis = pltBox.create('axis', [ [0, 0], [1, 0] ], {}); | |||
yaxis = pltBox.create('axis', [ [0, 0], [0, 1] ], {}); | |||
} else { | |||
xaxis.removeTicks(xaxis.defaultTicks); | |||
yaxis.removeTicks(yaxis.defaultTicks); | |||
} | |||
pltBox.fullUpdate(); | |||
}; | |||
</script> | </script> | ||
Revision as of 22:36, 18 September 2017
formel
| $x(t)$= $\quad$ | $x(t+ T_0)$= $\quad$ | $x(t+2T_0)$= $\quad$ | $x_{\text{max}}$= $\quad$ | $T_0$= $\quad$ |