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Update short_antenna.html

pull/2/head
miguel 2023-03-20 18:50:43 +11:00
rodzic ea40085534
commit 3bf54dd1de
1 zmienionych plików z 2 dodań i 29 usunięć
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31
short_antenna.html
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@ -26,10 +26,6 @@
<label for="inductor_distance">%:</label>
<input type="range" id="inductor_distance" min="10" max="80" value="50" step="1">
</div>
<div class="sliders">
<label for="loop_turns_slider">N:</label>
<input type="range" id="loop_turns_slider" min="2" max="150" value="8.0" step="1.0">
</div>
<div class="sliders">
<label for="conductor_diameter_slider">AWG:</label>
<input type="range" id="conductor_diameter_slider" min="0" max="40" value="20" step="1">
@ -155,7 +151,7 @@
inductor.loop_diameter_meters = 0.001 * antenna_length_slider.value * 25.4; // Inches to mm then to m
inductor.cond_diameter_meters = 0.001 * awgToMm(40.0 - conductor_diameter_slider.value);
inductor.spacing_ratio = 1.0 * inductor_distance.value;
inductor.loop_turns = 1.0 * loop_turns_slider.value;
//inductor.loop_turns = 1.0 * loop_turns_slider.value;
inductor.frequency_hz = 1e6 * frequency_slider.value;
// Frequency independent characteristics:
inductor.L = getInductance(inductor.loop_diameter_meters, inductor.cond_diameter_meters, inductor.spacing_ratio, inductor.loop_turns);
@ -228,29 +224,6 @@
drawDesign();
}
var turns_timer_handler = 0;
var turns_font = normal_font;
loop_turns_slider.oninput = function() {
recalculate();
if(turns_timer_handler == 0) {
turns_font = emphasis_font;
turns_timer_handler = setTimeout(function(){
turns_font = normal_font;
drawDesign();
turns_timer_handler = 0;
}, emphasis_delay);
} else {
clearTimeout(turns_timer_handler);
turns_timer_handler = setTimeout(function(){
turns_font = normal_font;
drawDesign();
turns_timer_handler = 0;
}, emphasis_delay);
}
drawDesign();
}
var spacing_timer_handler = 0;
var spacing_font = normal_font;
@ -418,9 +391,9 @@
fctx.fillText("l = " + (antenna_length_slider.value * 1.0).toFixed(1).toString() + " m", wire_x + 40, up_wire_top_y );
fctx.fillText("f = " + (frequency_slider.value * 1.0).toFixed(1).toString() + " MHz", wire_x + 40, up_wire_top_y + 18 );
//drawArrow(fctx, wire_x + 10, up_wire_bot_y, -0.5*Math.PI);
fctx.fillText("Xl = " + Xl.toFixed(1).toString() + " \u03A9", wire_x + 20, up_wire_bot_y - inductor.spacing_ratio * 0.01 * (up_wire_bot_y - up_wire_top_y) + 18);
const L = Xl / (2 * Math.PI * inductor.frequency_hz * 0.000001);
fctx.fillText("L = " + L.toFixed(1).toString() + " \u00B5H", wire_x + 20, up_wire_bot_y - inductor.spacing_ratio * 0.01 * (up_wire_bot_y - up_wire_top_y));
fctx.fillText("Xl = " + Xl.toFixed(1).toString() + " \u03A9", wire_x + 20, up_wire_bot_y - inductor.spacing_ratio * 0.01 * (up_wire_bot_y - up_wire_top_y) + 18);
// Draw the bottom antenna element:
fctx.beginPath();