The Evolution of Sirens muEmergency Vehicles
Kubva Mabviro kuenda Kuzvino Tekinoroji, Rwendo kuburikidza neNhoroondo yeSirens
Origins uye Early Evolution
The yekutanga sirens nokuti motokari dzinotyisa date kudzokera ku 19th remakore apo kurira kwearamu kwainyanya kugadzirwa nemabhero kana michina. French magetsi injiniya Gustave Trouve akagadzira imwe yemasairini ekutanga muna 1886 kuzivisa kusvika chinyararire kwezvikepe zvake zvemagetsi. Panguva Hondo Yenyika II, dzaishandiswa muBritain kuti chiratidzo chekurwisa kwemhepo. Aya masisitimu ekutanga dzimwe nguva ainetsa uye aivimba nemhepo yakamanikidzwa, zvichiita kuti isashande pamotokari.
Iyo Yemazuvano Era yeSirens
Munyika yose 20th remakore, masairini akashanduka zvakanyanya, achichinja kubva michina michina kune zvemazuva ano shanduro dzemagetsi. Ma siren ekutanga emagetsi akaunzwa mu 1970s, vachivavarira kuburitsa manzwi anobaya kuti tora pfungwa uye uve nechokwadi chekuchengetedza yevanopindura uye veruzhinji. Aya masairini akawedzera kuomarara, achibatanidza vatauri, maamplifiers, majenareta emazwi emamiriro akasiyana siyana, uye mabhokisi ekudzora anobvumira kukurumidza uye kuchinjika manejimendi. Sairini dzemazuva ano batanidza toni dzakasiyana uye masisitimu ekuvhenekesa kwekukurumidzira kuti uwedzere kushanda uye kukanganisa.
Pneumatic uye Electronic Sirens
Pneumatic sirens shandisa madhisiki anotenderera ane maburi (choppers) kuvhiringa mafambiro emhepo, kugadzira tsinhano yemhepo yakamanikidzwa uye isingawanzo. Aya masisitimu anogona kupedza simba rakawanda asi akaitwa kuti awedzere kuburikidza nekushandiswa kwemhepo yakamanikidzwa. Electronic sirens, kune rumwe rutivi, shandisa maseketi senge oscillator, modulators, uye amplifiers kusanganisa toni dzakasarudzwa, dzinoridzwa kuburikidza nevatauri vekunze. Aya masisitimu anogona kutevedzera manzwi emakanika sairini uye anowanzo shandiswa pamwe chete nepneumatic sirens.
Iko Evolution yeEmergency Vehicle Lighting
Zvakafanana nenhoroondo yemasairini, mwenje wemotokari yekukurumidzira wakavewo nekushanduka kukuru. Pakutanga, motokari dzechimbichimbi dzaishandisa marambi matsvuku akaiswa pamberi kana padenga. Munguva yeHondo Yenyika II muGermany, bhuruu yakaunzwa seruvara rwemwenje yekukurumidzira nekuda kwekupararira kwayo, zvichiita kuti isaonekwe kune ndege dzevavengi. Nhasi, mwenje wemotokari yechimbichimbi zvinosiyana zvikuru zvichibva pamitemo yenzvimbo uye inowanzo shandiswa pamwe chete nemasisitimu e siren kusimudzira kushanda uye kupa yambiro yekuona uye inonzwika.
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