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    	<div class="nyNewsDetail_Title"><h1>超声波探伤仪常用的术语名称</h1></div>
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            <span><img src="/skins/158899/images/date01.png" />更新时间：2023-09-11</span><span><img src="/skins/158899/images/hit.png" />点击次数：1707</span>
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            <p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">1.灵敏度：在超声波探伤仪荧光屏上发生可辨指示的最小超声信号的一种测量。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">2.回波频率：回波在时间轴上进行扩大观察所得到的峰值间隔时间的倒数。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">3.灵敏度余量：超声探伤体系中，以必定电平表明的规范缺点勘探灵敏度与最大勘探灵敏度之间的差值。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">4.分辨力：超声探伤体系可以区别横向、纵向或深度方向相距比来的必定巨细的两个相邻缺点的才能。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">5.按捺：在超声波探伤仪中，为了削减或消除低起伏信号(电或资料的噪声)，以杰出较大信号的一种操控办法。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">6. 闸口：为监控探伤信号或作进一步处置而选定一段时间规模的电子学办法。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">7. 衰减器：使信号电压(声压)定量改动的设备。衰减量以分贝表明。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">8. 信噪比：超声信号起伏与最大背景噪声起伏之比。通常以分贝表明。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">9. 堵塞：接纳器在接纳到发射脉冲或强脉冲信号后的霎时惹起的灵敏度下降或失灵的表象。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">10. 增益：超声探伤仪 接纳放大器的电压放很多的对数方式。以分贝表明。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">11.间隔波幅曲线(DAC)：根据规定的条件，由发生回波的已知反射体的间隔、探伤仪的增益和反射体的巨细，三个参量制作的一组曲线。实践探伤时，可由测得的缺点间隔和增益值，从此曲线上预算出缺点的当量尺度。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">12. 耦合：在探头和被检件之间起传导声波的效果。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">13. 试块：用于判定超声检测体系特性和探伤灵敏度的样件。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">14.规范试块：原料、形状和尺度均经主管机关或**机构检定的试块。用于对超声检测设备或体系的功能测验及灵敏度调整。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">15.对较量块：调整超声检测体系灵敏度或比拟缺点巨细的试块。通常选用与被检资料特性相似的资料制成。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">16.探头：发射或接纳(或既发射又接纳)超声能量的电声变换器材。该器材通常由商标、插头、外壳、背衬、压电元件、保护膜或楔块组成</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">17.斜探头：进行斜射探伤用的探头，首要用于横波探伤。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;">18.直探头：进行笔直探伤仪 探伤用的探头，首要用于纵波探伤。</p><p style="box-sizing: inherit; margin-top: 0px; margin-bottom: 0.8em; max-width: 100%;"><br style="box-sizing: inherit; max-width: 100%; color: rgb(42, 51, 60); font-family: "Segoe UI", "Lucida Grande", Helvetica, Arial, "Microsoft YaHei", FreeSans, Arimo, "Droid Sans", "wenquanyi micro hei", "Hiragino Sans GB", "Hiragino Sans GB W3", Roboto, Arial, sans-serif; font-size: 16px; text-wrap: wrap; background-color: rgb(255, 255, 255);"/></p><p style="line-height: normal;"><br/></p> 
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