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超聲波焊接原理

“超聲波”縱波，橫波聲場的不同點

一、横波声场。现阶段常见的横波探头，是使纵波斜入射到页面上，根据波型变换来完成横波探伤检测的，当倾斜角在第一、第二临界角中间时，纵波全反射，第二物质中仅有折射横波。横波声场同纵波声场一样因为波的干涉存有近场区和远场区，当x≥3N时，波束中心线上的声压与波源总面积正相关，与假想波源的间距反比，相近纵波声场。当横波探头芯片规格一定时，K值扩大，近场区长度将减少。

二、縱波聲場。在沒有考慮到物質衰減系數下，當離波源較遠方中心線上的聲壓與間距反比，與波源總面積正相關。

1. 近场区：波源配件因为波的干涉而发生一系列声压极大极小值的地区，称之为超声场的近场区。近场区声压遍布不均匀，是因为波源各点至中心线上某点的间距不一样，存有波程差，相互之间迭加时赛存有位相距而相互之间干预，使一些地区声压相互之间提升，另一些地区相互之间变弱，因此就发生声压巨大极小值的点。

在近場區內，具體聲場與理想化聲場存有顯著差別，具體聲場中心線上聲壓雖也存有極大極小值，但起伏力度小，極值點的總數也顯著降低。

2.远场区：波源中心线上至波源的间距x >N的地区称之为远场区。远场区中心线上的声压随间距提升简单降低。当 x >3N时，声压与间距反比，类似球面波的规律性。由于间距x充足大时，波源各点至中心线上某一点的波程差不大，造成的相位角也不大，那样干涉现象能够省去不计入，因此远场区不容易发生声压极大极小值。

“靈科超聲波 ” 源于1993年，擁有一支高效、有底蘊的研發制造隊伍，發明創造百余項專業新技術。爲客戶供應珠海超聲波、中山超聲波焊接機、江門超聲波塑焊機 、陽江超音波設備配件 等、根據廠家需求定制非標設備。

“超聲波”換能器損壞的主要因素

“超聲波”可以通過什麽進行傳播？

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