Kusintha kwa Sirens mu Magalimoto Odzidzimutsa
Kuchokera ku Origins to Modern Technology, Ulendo wodutsa mu Mbiri ya Sirens
Chiyambi ndi Chisinthiko Choyambirira
The ma sirens oyamba chifukwa magalimoto oopsa kuyambira ku 19th m'zaka pamene phokoso la alamu limapangidwa makamaka ndi mabelu kapena zipangizo zamakina. Wopanga zamagetsi waku France Gustave Trouve adapanga imodzi mwama siren oyambilira mu 1886 kulengeza zakufika mwakachetechete kwa mabwato ake amagetsi. Nthawi Nkhondo Yachiwiri Yapadziko Lonse, adagwiritsidwa ntchito ku Britain chizindikiro cha kuwombera ndege. Makina oyambirirawa nthawi zina anali ovuta ndipo ankadalira mpweya woponderezedwa, zomwe zinkapangitsa kuti zikhale zovuta kugwiritsa ntchito magalimoto.
Nthawi Yamakono ya Sirens
Ponseponse 20th m'zaka, ma siren adasinthika kwambiri, akusintha kuchokera makina mpaka zamakono zomasulira zamagetsi. Ma siren amagetsi oyamba adayambitsidwa mu 1970, cholinga chotulutsa mawu oboola kuti gwirani chidwi ndikuwonetsetsa chitetezo ya oyankha ndi anthu. Ma siren awa adakhala otsogola kwambiri, kuphatikiza ma speaker, zokulitsa mawu, majenereta amtundu wanthawi zosiyanasiyana, ndi mabokosi owongolera omwe amalola kuwongolera mwachangu komanso kosavuta. Ma siren amakono phatikizani ma toni osiyanasiyana ndi machitidwe owunikira mwadzidzidzi kuti muwonjezere mphamvu komanso mphamvu.
Pneumatic ndi Electronic Sirens
Ma siren a pneumatic gwiritsani ntchito ma disks ozungulira okhala ndi mabowo (choppers) kusokoneza kayendedwe ka mpweya, kupanga phokoso losinthasintha la mpweya woponderezedwa ndi wosowa. Makinawa amatha kugwiritsa ntchito mphamvu zambiri koma apangidwa kuti azitha kugwiritsa ntchito mpweya wabwino kwambiri. Electronic sirensKomano, gwiritsani ntchito mabwalo ngati oscillators, modulators, ndi amplifiers kuti muphatikize matani osankhidwa, omwe amaseweredwa kudzera mwa okamba akunja. Makinawa amatha kutsanzira phokoso la ma siren opangidwa ndi makina ndipo nthawi zambiri amagwiritsidwa ntchito limodzi ndi ma siren a pneumatic.
Kusintha kwa Kuwunikira Magalimoto Odzidzimutsa
Zofanana ndi mbiri ya ma siren, kuyatsa magalimoto mwadzidzidzi kwasinthanso kwambiri. Poyambirira, magalimoto odzidzimutsa ankagwiritsa ntchito magetsi ofiira omwe amaikidwa kutsogolo kapena padenga. Panthawi ya nkhondo yachiwiri ya padziko lonse ku Germany, buluu unayambitsidwa ngati mtundu wa magetsi adzidzidzi chifukwa cha kufalikira kwake, zomwe zimapangitsa kuti zisamawonekere kwa adani. Today, mwadzidzidzi galimoto kuyatsa zimasiyanasiyana malinga ndi malamulo a m'deralo ndipo nthawi zambiri amagwiritsidwa ntchito molumikizana ndi makina a siren kuti apititse patsogolo kuchita bwino komanso kupereka machenjezo owoneka ndi omveka.
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