Isantya sesandi sisantya sokusasazwa kokuphazamiseka koxinzelelo olubuthathaka phakathi, kwaye ubungakanani bayo buhluka ngokwendalo kunye nemeko yendawo. Isantya sesandi emoyeni simalunga nama-340 m/s kuxinzelelo oluqhelekileyo lwe-atmospheric kunye ne-15°C.
Isantya sosasazo lwamaza esandi kwisiphakathi sisantya sesandi, isimboli saso ngu c, iyunithi yi m/s: c=λf
Kwifomula, uf yintshukumo yamaxesha ngamaxesha, oko kukuthi, inani leentshukumo ngesekondi, Hz: λ bubude obungamaza, m.
Ngenxa yokuba akukho ukuqina kwe-shear kwi-gas, i-volume elasticity kuphela, ngoko ke i-propagation form ye-gas ingaba ngamaza e-longitudinal kuphela. Ngamanye amazwi, phantsi kokuphazamiseka kwamaza esandi, amasuntswana akwisithuba serhasi ayangcangcazela kufutshane neendawo zawo zokulingana, enze inkqubo yothumelo eshinyeneyo nencinci. Ngexesha elifanayo, ulwalathiso oluhambayo lwe-particle lufana ne-propagation direction of wave. Ngokubanzi, ukubonakaliswa kwesantya sesandi segesi phantsi kwazo naziphi na iimeko kunzima kakhulu. Intetha yayo inxulumene nobunzima bemolekyuli, umthamo wobushushu obuthile, kunye nokulingana kwepropati yegesi, kwaye ayizukwaziswa apha. Kwiingxaki ngokubanzi, ifomyula yesantya sesandi serhasi efanelekileyo isoloko isetyenziswa.
Inokungqinwa ukuba isantya sesandi kwigesi efanelekileyo yile: c=(rp/p)0.5 Kwifomula, i-r adiabatic coefficient ilingana nomlinganiselo womthamo wobushushu kuxinzelelo oluqhubekayo kumandla obushushu kuxinzelelo oluqhubekayo; p luxinzelelo lwegesi, iPa; ρ kukuxinana, kg/m3.
Isantya sokusasaza kwimidiya eyahlukeneyo
Vacuum 0m/s (oko kukuthi, ayinako ukudluliselwa);
Umoya (15℃) 340m/s;
Umoya (25℃) 346m/s;
Cork 500m/s;
I-kerosene (25℃) 1324m/s;
Amanzi adiliweyo (25℃) 1497m/s;
Amanzi olwandle (25℃) 1531m/s;
Ubhedu (intonga) 3750m/s;
Ibhastile 3810m/s;
I-Aluminiyam (intonga) 5000m/s;
Intsimbi (intonga) 5200m/s;
