Lub tso zis analog square 24V US40 Serise Ultrasonic sensor

Lub ultrasonic sensor yog lub sensor uas hloov cov teeb liab ultrasonic mus rau lwm cov teeb liab zog, feem ntau yog cov teeb liab hluav taws xob. Cov ultrasonic waves yog cov mechanical waves nrog cov zaus co siab dua 20kHz. Lawv muaj cov yam ntxwv ntawm cov zaus siab, luv luv wavelength, tsawg kawg nkaus diffraction phenomenon, thiab zoo heev directionality, uas tso cai rau lawv mus kis tau raws li cov directional rays. Ultrasonic waves muaj peev xwm nkag mus rau hauv cov kua thiab cov khoom khov, tshwj xeeb tshaj yog nyob rau hauv cov khoom khov opaque. Thaum ultrasonic waves ntsib impurities lossis interfaces, lawv tsim cov reflections tseem ceeb hauv daim ntawv ntawm echo signals. Tsis tas li ntawd, thaum ultrasonic waves ntsib cov khoom txav mus los, lawv tuaj yeem tsim Doppler effects.