过孔寄生电感计算器
<div class="d"><!----><div id="diycontenttop" class="area"></div><!---->
<table cellpadding="0" cellspacing="0" class="vwtb"><tbody><tr><td id="article_content"><script type="text/javascript">
//过孔寄生电感
function parasitic_inductance_calc()
{
var d= document.getElementById("input4_d").value*document.getElementById("input4_d_unit").value;
var len= document.getElementById("input4_len").value*document.getElementById("input4_len_unit").value;
var L=5.08*len*(Math.log(4*len/d)+1);
document.getElementById("input4_L").value= L.toPrecision(4);
}
</script>
<table class="gridtable">
<tbody>
<tr>
<th colspan="4" class="apphot">过孔寄生电感计算器</th>
</tr>
<tr>
<td>过孔孔径(d):</td>
<td>
<input id="input4_d" onkeyup="parasitic_inductance_calc()" value="10" name="input4_d" type="text">
</td>
<td>
<select id="input4_d_unit" onchange="parasitic_inductance_calc()" name="input4_d_unit">
<option value="0.03937">mm</option>
<option value="0.001" selected="">mil</option>
</select>
</td>
<td rowspan="3"><div align="center"><p><img src="/template/rtj1009_010/image/jisuan/gkjsdg.png" data-bd-imgshare-binded="1" ></p></div></td>
</tr>
<tr>
<td>过孔长度(len):</td>
<td>
<input name="input4_len" id="input4_len" onkeyup="parasitic_inductance_calc()" value="50" type="text">
</td>
<td>
<select id="input4_len_unit" onchange="parasitic_inductance_calc()" name="input4_len_unit">
<option value="0.03937">mm</option>
<option value="0.001" selected="">mil</option>
</select>
</td>
</tr>
<tr>
<td>寄生电感(L):</td>
<td>
<input name="input4_L" class="eda_input_res" id="input4_L" onkeyup="parasitic_inductance_calc()" value="1.015" type="text">
</td>
<td>nH</td>
</tr>
<tr>
<td colspan="4">说明:以上计算结果仅供参考</td>
</tr>
</tbody></table></td></tr></tbody></table>
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</div> 值得拥有，值得学习使用 不错，真的不错哦，真的不错 值得拥有，值得学习使用 值得拥有，值得学习使用 感谢分享:lol
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