Vim li cas thiaj ua tau / tsis tau ib qho kev hais lus tib yam raug siv ua ultrasonic transducer?

Cov neeg tham yog tsim los rau cov me nyuam kawm tau zoo heev. Piv txwv, woofers yog tsim los tsim cov suab tsawg tsawg, feem ntau los ntawm ib ncig ntawm 40 Hz txog li ntawm ib kHz, thaum tweeters yog tsim los tsim cov suab siab heev, feem ntau ntawm 2 kHz txog 20 kHz. Ultrasounds muaj ntau dua frequencies.

Xav nrhiav ib qho kev hloov zoo rau koj daim ntawv thov?

Nyem Altrasonic Transducer   kom paub nws!