Juyin Halitta na Sirens a cikin Motocin Gaggawa
Daga Asalin Zuwa Fasahar Zamani, Tafiya ta Tarihin Sirens
Asalin da Farkon Juyin Halitta
The siren farko domin motocin gaggawa kwanan baya zuwa 19th karni lokacin da aka fara haifar da ƙararrawa ta ƙararrawa ko na'urorin inji. Injiniyan lantarki na Faransa Gustave Trouve ya haɓaka ɗaya daga cikin siren farko a cikin 1886 don ba da sanarwar isowar jiragen ruwan sa na lantarki cikin shiru. Lokacin World War II, an yi amfani da su a Biritaniya don hare-haren iska. Wadannan tsarin na farko wani lokaci suna da wahala kuma sun dogara da iska mai matsa lamba, wanda hakan ya sa ba su da amfani don amfani da motoci.
Zamanin Zamani na Sirens
A cikin duka 20th karni, sirens sun samo asali sosai, suna canzawa daga tsarin inji zuwa mafi zamani sigar lantarki. An gabatar da siren lantarki na farko a cikin 1970s, da nufin samar da sautin huda zuwa ga daukar hankali da tabbatar da tsaro na masu amsawa da jama'a. Waɗannan sirens sun ƙara haɓaka, sun haɗa da lasifika, amplifiers, masu samar da sauti don yanayi daban-daban, da akwatunan sarrafawa waɗanda ke ba da izinin gudanarwa mai sauri da sassauƙa. Sirrin zamani hada sautuna daban-daban da tsarin hasken wuta na gaggawa don haɓaka tasiri da tasiri.
Pneumatic da Electronic Sirens
Siren pneumatic yi amfani da faifai masu juyawa tare da ramuka (choppers) don katse motsin iska, ƙirƙirar wasu sautunan matsewar iska da ƙarancin ƙarfi. Wadannan tsarin na iya cinye makamashi mai yawa amma an sanya su cikin inganci ta hanyar amfani da iska mai matsa lamba. Siren lantarki, a daya bangaren, yi amfani da da'irori kamar oscillators, modulators, da amplifiers don haɗa zaɓaɓɓun sautunan, waɗanda ake kunna ta cikin lasifikan waje. Waɗannan tsarin na iya kwaikwayi sautin siren injina kuma galibi ana amfani dasu tare da siren huhu.
Juyin Halittar Motar Gaggawa
Daidai da tarihin sirens, Hasken abin hawa na gaggawa ya kuma sami gagarumin juyin halitta. Asali, motocin gaggawa sun yi amfani da jajayen fitilun da aka ɗora a gaba ko rufin. A lokacin yakin duniya na biyu a kasar Jamus, an bullo da shudi a matsayin launi na fitilun gaggawa saboda abubuwan da ke warwatsewa, wanda hakan ya sa jiragen abokan gaba ba su iya gani. Yau, hasken abin hawa na gaggawa ya bambanta sosai dangane da dokokin gida kuma galibi ana amfani dashi tare da tsarin siren don haɓaka inganci da samar da faɗakarwa na gani da ji.
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