High Frequency Umsindo
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Imisindo enemvamisa engu-20 kHz nangaphezulu ibizwa ngokuthi yi-ultrasound (noma umsindo we-ultrasonic). Umsindo wefrikhwensi ephezulu umsindo lapho imvamisa iphakathi kuka-8 no-20 kHz. Umsindo wefrikhwensi ephezulu onefrikhwensi engaphezu kuka-16 kHz awuzwakali, kodwa awuzwakali ngokuphelele. Umsindo wefrikhwensi ephezulu kanye ne-ultrasound endaweni yefrikhwensi ephansi (kufika ku-24 kHz) ingazwakala uma izinga lomsindo liphezulu ngokwanele. Umkhawulo womsindo (izinga lomsindo lapho umsindo ungazwakala khona) ukhuphuka kakhulu uma imvamisa (ngakho-ke, ithoni) iba phezulu. Abantu abasebancane bazwa kangcono umsindo we-high frequency futhi izinga lokuzwa kwabo likhulu ngokuya kumafrikhwensi aphezulu.
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Ukuphepha kuqala ngokuqonda ukuthi onjiniyela baqoqa futhi babelane kanjani ngedatha yakho. Ubumfihlo bedatha nezinqubo zokuphepha zingahluka kuye ngokusebenzisa kwakho, isifunda, nobudala. Unjiniyela unikeze lolu lwazi futhi angalubuyekeza ngokuhamba kwesikhathi.
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