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      <div class="weizhi">当前位置：<a href="/">首页</a> &gt; <a href="/article.html">技术文章</a> &gt; 防爆球机的设计有效提高了其散热性能</div>
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       <h1 class="biaoti">防爆球机的设计有效提高了其散热性能</h1>
       <div class="fabiao">更新时间：2020-02-17&nbsp;&nbsp;|&nbsp;&nbsp;点击率：2636</div>
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       <div>　　由于<strong><a href="http://www.hzalkj.cn" target="_blank">防爆球机</a></strong>采用的透明球罩的设计，可能会影响球罩易脏、可维护性差，且不耐盐腐酸侵。球罩上覆盖的灰尘，会让成像效果也会被蒙上灰，并且很多时候因为雨后灰尘结垢，球机芯会自动聚焦到球罩的污垢上，从而影响球机的正常应用。</div><div>　　对此厂家用小范围的平面高清光学玻璃代替了大面积的曲面球罩，一方面减小了球机容易脏，难以维护的问题，一方面又解决了高清图像受曲面影响长焦失真的问题，并且通过特殊的材质选型和镀膜设计，可以做到高透光率和憎水憎尘设计，为球机的室外应用形成了良好的解决方案。</div><div>　　在冬季时我们也需要注意防爆球机的散热性能。球机在城市建设当中也起到了不小的作用。但是由于它在室外24小时工作，环境比较恶劣，特别是南方的夏天，天气十分炎热，气温高达35℃以上。因此对防爆球机的散热性能提出了较高的要求。如果散热性能不好，会导致球机内温度太高，使机器无法正常工作，并且电路板元器件都可能被氧化，寿命缩短。</div><div>　　今天小编要为大家介绍的是防爆摄像机录音功能能够正常使用但是没有声音的原因。</div><div>　　1、拾音器的电源供电不正确，一般为+12V供电，在使用前需要确认拾音器是否已经通电，如果通电了，拾音器上的指示灯会显示，并且直接在拾音器端试听拾音器是否有音频输出，当有音频输出之后再去确认录音问题。</div><div>　　2、拾音器接线不对，有时候音频接口有单声道和立体声区别，可试将音频头前端两个声道和拾音器的音频线接到一起。</div><div>　　以上就是小编今天为大家带来的全部知识内容了，希望能够对您有所帮助。</div>
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        <div class="l">上一篇： <a href="/Article-334886.html">一文读懂防爆网络摄像机会出现显示故障的原因</a></div>
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