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Updated Coax with Z. Added Z in help.

pull/2/head
miguel 2020-11-25 18:12:22 +11:00
rodzic 05a1d61526
commit e40982c2ec
3 zmienionych plików z 49 dodań i 39 usunięć
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6
inductor.html
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@ -65,8 +65,9 @@
<li>Rdc : DC resistance is calculated using conductor length divided by the conductor cross-sectional area, assuming a copper conductor.</li>
<li>SRF : Self-resonant frequency (MHz) for the unloaded coil. Currently using a lumped reactances model. (Looking into modifying the model to
use the conductor length and velocity factor as described by Knight (2016).</li>
<li>Xl : Inductive reactance at the given frequency. (&#937)</li>
<li>&#948 : Skin depth due to skin effect (&#956m)</li>
<li>X&#8343; : Inductive reactance at the given frequency. (&#937;)</li>
<li>|Z| : Impedance at the given frequency. (&#937;)</li>
<li>&#948; : Skin depth due to skin effect (&#956;m)</li>
<li>Rac : AC resistance is calculated using the skin effect and proximity resistance from empirical data collected by Medhurst using the spacing ratio, and length-to-diameter ratio.</li>
<li>Q : Quality factor of device, based on reactance (X) &#247 resistance (Rac) at the given frequency.</li>
</ul>
@ -115,7 +116,6 @@
var Zl = math.complex(inductor.Rac, inductor.Xl);
var Zc = math.complex(0, inductor.Xc);
inductor.Z = math.divide(math.multiply(Zl, Zc), math.add(Zl, Zc)).toPolar();
// Redraw the canvas:
drawDesign();
}

6
inductor_imp.html
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@ -65,8 +65,9 @@
<li>Rdc : DC resistance is calculated using conductor length divided by the conductor cross-sectional area, assuming a copper conductor.</li>
<li>SRF : Self-resonant frequency (MHz) for the unloaded coil. Currently using a lumped reactances model. (Looking into modifying the model to
use the conductor length and velocity factor as described by Knight (2016).</li>
<li>Xl : Inductive reactance at the given frequency. (&#937)</li>
<li>&#948 : Skin depth due to skin effect (&#956m)</li>
<li>X&#8343; : Inductive reactance at the given frequency. (&#937;)</li>
<li>|Z| : Impedance at the given frequency. (&#937;)</li>
<li>&#948; : Skin depth due to skin effect (&#956;m)</li>
<li>Rac : AC resistance is calculated using the skin effect and proximity resistance from empirical data collected by Medhurst using the spacing ratio, and length-to-diameter ratio.</li>
<li>Q : Quality factor of device, based on reactance (X) &#247 resistance (Rac) at the given frequency.</li>
</ul>
@ -115,7 +116,6 @@
var Zl = math.complex(inductor.Rac, inductor.Xl);
var Zc = math.complex(0, inductor.Xc);
inductor.Z = math.divide(math.multiply(Zl, Zc), math.add(Zl, Zc)).toPolar();
// Redraw the canvas:
drawDesign();
}

76
inductor_lrg.html
Wyświetl plik

@ -15,12 +15,12 @@
</div>
<div class="slider_container">
<div class="sliders">
<label for="conductor_diameter_slider">&#8960a:</label>
<label for="conductor_diameter_slider">&#8960;a:</label>
<input type="range" id="conductor_diameter_slider" min="2.0" max="10.0" value="3.50" step="0.02">
</div>
<div class="sliders">
<label for="loop_diameter_slider">&#8960b:</label>
<input type="range" id="loop_diameter_slider" min="20.0" max="200.0" value="50.0" step="1.0">
<label for="loop_diameter_slider">&#8960;b:</label>
<input type="range" id="loop_diameter_slider" min="20.0" max="200.0" value="100.0" step="1.0">
</div>
<div class="sliders">
<label for="loop_spacing_slider">c/a:</label>
@ -67,13 +67,15 @@
<li>Rdc : DC resistance is calculated using conductor length divided by the conductor cross-sectional area, assuming a copper conductor.</li>
<li>SRF : Self-resonant frequency (MHz) for the unloaded coil. Currently using a lumped reactances model. (Looking into modifying the model to
use the conductor length and velocity factor as described by Knight (2016).</li>
<li>Xl : Inductive reactance at the given frequency. (&#937)</li>
<li>&#948 : Skin depth due to skin effect (&#956m)</li>
<li>X&#8343; : Inductive reactance at the given frequency. (&#937;)</li>
<li>|Z| : Impedance at the given frequency. (&#937;)</li>
<li>&#948; : Skin depth due to skin effect (&#956;m)</li>
<li>Rac : AC resistance is calculated using the skin effect and proximity resistance from empirical data collected by Medhurst using the spacing ratio, and length-to-diameter ratio.</li>
<li>Q : Quality factor of device, based on reactance (X) &#247 resistance (Rac) at the given frequency.</li>
</ul>
</div>
</section>
<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjs/7.5.1/math.min.js"></script>
<script src="inductor.js"></script>
<script>
// Define global storage for calculated values, so we don't recalculate the same things multiple times:
@ -83,7 +85,10 @@
Rdc : 0.0,
SRF : 0.0,
X : 0.0,
f : 0.0,
Xl : 0.0,
Xc : 0.0,
Z : 0.0,
skin_depth : 0.0,
Rac : 0.0,
Q : 0.0
@ -92,7 +97,7 @@
// Solve all the parameters, and re-draw the canvas:
function recalculate() {
// Input variables:
const loop_diameter_meters = 0.001 * loop_diameter_slider.value;
const loop_diameter_meters = 0.001 * loop_diameter_slider.value;
const cond_diameter_meters = 0.001 * conductor_diameter_slider.value;
const spacing_ratio = 1.0 * loop_spacing_slider.value;
const loop_turns = 1.0 * loop_turns_slider.value;
@ -103,10 +108,16 @@
inductor.Rdc = dcResistance(loop_diameter_meters, cond_diameter_meters, spacing_ratio, loop_turns);
inductor.SRF = selfResonantFrequency(inductor.L, inductor.C);
// Frequency dependent characteristics:
inductor.X = inductiveReactance(frequency_hz, inductor.L);
inductor.f = frequency_hz;
inductor.Xl = inductiveReactance(frequency_hz, inductor.L);
inductor.Xc = capacitiveReactance(frequency_hz, inductor.C);
inductor.skin_depth = skinDepth(frequency_hz);
inductor.Rac = acResistance(loop_diameter_meters, cond_diameter_meters, spacing_ratio, loop_turns, frequency_hz);
inductor.Q = qualityFactor(inductor.X, inductor.Rac);
inductor.Q = qualityFactor(inductor.Xl, inductor.Rac);
// Calculate impedance:
var Zl = math.complex(inductor.Rac, inductor.Xl);
var Zc = math.complex(0, inductor.Xc);
inductor.Z = math.divide(math.multiply(Zl, Zc), math.add(Zl, Zc)).toPolar();
// Redraw the canvas:
drawDesign();
}
@ -203,11 +214,14 @@
fctx.lineTo(loopx + loop_radius + 3.0*arrow_size, y_offset);
fctx.stroke();
// Write loop diameter symbol:
// Write conductor diameter symbol:
fctx.font = "12px arial";
fctx.textAlign = "right";
const cond_dia = 1.0 * conductor_diameter_slider.value;
fctx.fillText("\u2300a = " + cond_dia.toFixed(2).toString() + "mm", loopx - loop_radius - 2.0*arrow_size, loopy - 6);
// Write loop diameter symbol:
const loop_dia = 1.0 * loop_diameter_slider.value; // Convert from mm to inches
fctx.fillText("\u2300b = " + loop_dia.toPrecision(3).toString() + "mm", loopx - loop_radius - 2.0*arrow_size, y_offset - 2);
fctx.fillText("\u2300b = " + loop_dia.toFixed(1).toString() + "mm", loopx - loop_radius - 2.0*arrow_size, y_offset - 2);
// Draw inner-diameter arrows: (for using a winding former)
const inner_dia_y = loopy + loop_radius + 40;
@ -263,24 +277,21 @@
// Draw conductor diameter arrow:
fctx.beginPath();
fctx.moveTo(loopx + loop_radius - cond_radius, loopy);
fctx.lineTo(loopx + loop_radius - cond_radius - arrow_size, loopy - arrow_size);
fctx.lineTo(loopx + loop_radius - cond_radius - arrow_size, loopy + arrow_size);
fctx.lineTo(loopx + loop_radius - cond_radius, loopy);
fctx.lineTo(loopx - 0.6*loop_radius, loopy);
fctx.moveTo(loopx - loop_radius - cond_radius, loopy);
fctx.lineTo(loopx - loop_radius - cond_radius - arrow_size, loopy - arrow_size);
fctx.lineTo(loopx - loop_radius - cond_radius - arrow_size, loopy + arrow_size);
fctx.lineTo(loopx - loop_radius - cond_radius, loopy);
fctx.lineTo(loopx - loop_radius - 3.0*arrow_size, loopy);
fctx.stroke();
fctx.beginPath();
fctx.moveTo(loopx + loop_radius + cond_radius, loopy);
fctx.lineTo(loopx + loop_radius + cond_radius + arrow_size, loopy - arrow_size);
fctx.lineTo(loopx + loop_radius + cond_radius + arrow_size, loopy + arrow_size);
fctx.lineTo(loopx + loop_radius + cond_radius, loopy);
fctx.lineTo(loopx + loop_radius + cond_radius + 2.0*arrow_size, loopy);
fctx.moveTo(loopx - loop_radius + cond_radius, loopy);
fctx.lineTo(loopx - loop_radius + cond_radius + arrow_size, loopy - arrow_size);
fctx.lineTo(loopx - loop_radius + cond_radius + arrow_size, loopy + arrow_size);
fctx.lineTo(loopx - loop_radius + cond_radius, loopy);
fctx.lineTo(loopx - loop_radius + cond_radius + 2.0*arrow_size, loopy);
fctx.stroke();
//fctx.textAlign = "right";
const cond_dia = 1.0 * conductor_diameter_slider.value;
fctx.textAlign = "center";
fctx.fillText("\u2300a = " + cond_dia.toPrecision(3).toString() + "mm", loopx, loopy - 6);
var awg = "";
switch(cond_dia) {
case 2.00 :
@ -305,10 +316,8 @@
awg = "RG-8 LL400";
break;
}
fctx.textAlign = "left";
fctx.fillText(awg, loopx + loop_radius + cond_radius + 2.0*arrow_size, loopy - 6);
fctx.textAlign = "center";
fctx.fillText(awg, loopx, loopy - 6);
var cond_spacing = 2.0 * cond_radius * loop_spacing_slider.value;
if((cond_spacing * loop_turns_slider.value) > (0.8 * win_width)) {
@ -393,10 +402,11 @@
fctx.textAlign = "right";
var freq = 1.0 * frequency_slider.value;
fctx.fillText("f = " + freq.toFixed(1) + " MHz", win_width-18, 18);
fctx.fillText("Xl = " + inductor.X.toFixed(1) + " \u03A9", win_width-18, 32);
fctx.fillText("\u03B4 = " + (inductor.skin_depth * 1e6).toFixed(1) + " \u03BCm", win_width-18, 46);
fctx.fillText("Rac = " + inductor.Rac.toFixed(2) + " \u03A9", win_width-18, 60);
fctx.fillText("Q = " + inductor.Q.toFixed(1), win_width-18, 74);
fctx.fillText("X\u2097 = " + inductor.Xl.toFixed(1) + " \u03A9", win_width-18, 32);
fctx.fillText("|Z| = " + inductor.Z.r.toFixed(1) + " \u03A9", win_width-18, 46);
fctx.fillText("\u03B4 = " + (inductor.skin_depth * 1e6).toFixed(1) + " \u03BCm", win_width-18, 60);
fctx.fillText("Rac = " + inductor.Rac.toFixed(2) + " \u03A9", win_width-18, 74);
fctx.fillText("Q = " + inductor.Q.toFixed(1), win_width-18, 88);
fctx.textAlign = "center";
fctx.fillText("N = " + loop_turns_slider.value.toString(), win_width/2, win_height * 0.52);