Zolakwa Zofala Posankha Oyankhula a Horn Yakunja

Chifukwa Chake Kusankha Sipikala Yakunja N'kofunika

Kusankha cholankhulira cha horn yakunja kumaphatikizapo zinthu zovuta zokhudzana ndi mawu ndi zachilengedwe. Cholakwika chofala kwambiri m'makampani ndikuwona zipangizozi ngati zipangizo zogulitsidwa, zomwe zimapangitsa kuti zikhale zosamveka bwino, zosakwanira kuphimba, komanso kulephera msanga. Ogwirizanitsa makina ayenera kuwunika fizikisi ya mawu pamodzi ndi zoletsa zinazake kuti apewe kusintha kokwera mtengo. Oyang'anira mapulojekiti akamanyalanyaza zofunikira kwambiri pakugawa mawu akunja, amakhala pachiwopsezo chogwiritsa ntchito makina omwe amalephera kulowa pansi pa phokoso kapena kuwonongeka mwachangu chifukwa cha kupsinjika kwa chilengedwe. Kuzindikira kufunika kwa njira yosankhayi ndi sitepe yoyamba yopangira cholimba komanso chomveka bwino.nkhani ya anthu onsekapena zomangamanga zoteteza moyo.

Fotokozani zolinga za polojekiti ndi momwe mungagwiritsire ntchito

Cholakwika choyamba nthawi zambiri chimakhala pa zolinga zosamveka bwino za polojekiti. Zokamba mawu zakunja zimagwira ntchito zosiyanasiyana, kuyambira paging yachizolowezi ndi nyimbo zakumbuyo mpaka makina a alamu yamawu ofunikira kwambiri. Pulogalamu iliyonse imafuna miyezo yosiyana ya magwiridwe antchito. Mwachitsanzo, makina a alamu yamawu ayenera kutsatira miyezo yokhwima yotetezera moyo, monga EN 54-24 kapena UL 1480, yomwe imafuna malo apadera osapsa ndi moto, ma fuse a kutentha, ndi mawonekedwe enaake ofalikira. Mosiyana ndi zimenezi,wokamba nkhani wa paging wa mafakitaleKungakhale kofunikira kwambiri kuposa kutulutsa mawu ambiri kapena kupulumuka moto. Kulephera kufotokoza bwino momwe ntchitoyi imagwiritsidwira ntchito pachiyambi cha pulojekitiyi nthawi zambiri kumabweretsa kutchula wokamba nkhani yemwe alibe ma frequency ofunikira kuti alankhule momveka bwino kapena yemwe sakwaniritsa ziphaso zovomerezeka.

Unikani malo ofikira, kuchuluka kwa phokoso, ndi mtunda wa omvera

Kuwunika malo ophimbidwa kumafuna kuwerengera bwino mtunda wa omvera ndi kuchuluka kwa phokoso lozungulira, komabe mainjiniya ambiri amadalira kuyerekezera kwabwino m'malo mwa deta ya acoustic. Lamulo lotsutsana ndi sikweya limafotokoza kuti kuchuluka kwa kupanikizika kwa mawu (SPL) kumatsika ndi 6 dB pa mtunda uliwonse wowirikiza kawiri m'munda womasuka. Ngati sipika yakunja imatulutsa 110 dB pa mita imodzi, SPL idzatsika kufika pafupifupi 86 dB pa mamita 16, ndikutsikanso kufika 80 dB pa mamita 32. Kuphatikiza apo, mfundo zokhazikika za kapangidwe ka mawu zimalamula kuti mawu owulutsidwa ayenera kupitirira kuchuluka kwa phokoso lozungulira ndi osachepera 10 mpaka 15 dB kuti atsimikizire kuti mawu amveka bwino. M'bwalo la mafakitale lomwe lili ndi phokoso lozungulira la 85 dBA, sipikayo iyenera kupereka osachepera 95 dBA pa khutu la womvera. Kunyalanyaza mawerengedwewa kumabweretsa madera akufa kapena mawu osokonekera pamene ma amplifier akukankhira kuti adule kuti akwaniritse kukonzekera kosakwanira kwa mawu.

Mafotokozedwe Ofunika Kuyerekeza

Kuyerekeza zofunikira zaukadaulo ndi gawo lofunika kwambiri pomwe kuwunika kwapamwamba nthawi zambiri kumabweretsa kulephera kwa dongosolo. Magulu ogulitsa nthawi zambiri amalephera kuwunika mphamvu mu ma watts, molakwika akuyerekeza mphamvu yapamwamba ndi mphamvu yapamwamba ya mawu. Kumvetsetsa kwathunthu kwa zofunikira za electro-acoustic ndikofunikira kuti zitsimikizire kuti zida zomwe zasankhidwa zikugwirizana ndi zenizeni zenizeni za malo ogwiritsira ntchito.

Kumvetsetsa SPL, kukhudzidwa, mphamvu, ndi impedance

Muyeso wofunikira kwambiri wa sipika iliyonse yakunja ndi mphamvu yamagetsi, yoyezedwa mu ma decibel pa 1 watt ndi mita imodzi (dB @ 1W/1m). Sipika yamagetsi yogwira ntchito bwino kwambiri yokhala ndi mphamvu ya 110 dB imafuna mphamvu yochepa kwambiri ya amplifier kuti ikwaniritse cholinga cha SPL poyerekeza ndi chitsanzo chokhala ndi mphamvu ya 95 dB. Mainjiniya ayenera kuwerengera SPL yayikulu poganizira mphamvu yamagetsi komanso mphamvu yamagetsi yayikulu m'malo moyang'ana mphamvu yamagetsi yokha. Kuphatikiza apo, kufananiza mphamvu yamagetsi ndikofunikira. Ngakhale kuti sipika za 8-ohm ndizoyenera kugwiritsa ntchito mphamvu yochepa, zokhazikika panja zimadalira makina amawu a 70V kapena 100V kuti achepetse kutsika kwa magetsi pazitali zazitali za chingwe. Kusankha zoikamo zolakwika za transformer tap kapena kusagwirizanitsa mzere wonse wamagetsi kumatha kuwononga magwiridwe antchito kwambiri, kuyambitsa kusokonekera, kapena kuwononga kwambiri zida zokwezera.

Yesani kuwongolera, kuyankha pafupipafupi, komanso kumveka bwino kwa mawu

Kuzindikira kumadalira kwambiri kulunjika ndi kuyankha pafupipafupi. Olankhula ma horn amakhala ndi mbali imodzi; ngodya yofalikira nthawi zambiri imakhala madigiri 60 mopingasa ndi madigiri 40 molunjika. Kulephera kuganizira za indexication indexi (Q) iyi kumabweretsa ma ray ochepa a mawu omwe amaphonya omvera am'mbali, zomwe zimapangitsa kuti malo otentha a acoustic ndi madera akufa amveke. Kuyankha pafupipafupi ndikofunikira kwambiri. Ngakhale kuti ma horn wamba ozungulira nthawi zambiri amagwira ntchito pakati pa 300 Hz ndi 8 kHz—okwanira kutumiza mawu kwa anthu wamba—sakwanira kumvetsera mawu athunthu. Ma horn a nyimbo amagwiritsa ntchito ma enclosures akuluakulu ndi mapangidwe a ma driver awiri kuti awonjezere kuyankha kuchokera pa 100 Hz mpaka 15 kHz. Pamapeto pake, zinthuzi zimafika pa Speech Transmission Index (STI). STI yofunikira ya >0.5 nthawi zambiri imafunika kuti mawu amveke bwino m'ma adilesi a anthu onse, zomwe sizingachitike ngati yankho la pafupipafupi la wokamba kapena kuwongolera kwake sikukugwirizana ndi malo a acoustic.

Gwiritsani ntchito tebulo loyerekeza kuti musinthe mawonekedwe

Kuti zinthu izi zisinthe komanso kupewa mawu ofotokozera malonda a opanga, ophatikiza ayenera kugwiritsa ntchito njira yofananira yokhazikika. Izi zimatsimikizira kuti zinthu monga kukhudzika zimayesedwa pansi pa mikhalidwe yofanana (monga 1W/1m on-axis) komanso kuti ma angles ofalikira amafotokozedwa pafupipafupi, nthawi zambiri 2 kHz.

Kugwiritsa ntchito chimango ichi kumathandiza opanga kuzindikira msanga zolakwika, monga wopanga yemwe akunena kuti ali ndi mphamvu zambiri zotulutsa zinthu pamodzi ndi luso lake lotha kuponya zinthu kwa nthawi yayitali, zomwe zimatsutsana ndi mfundo yoyambira ya kufalitsa mphamvu ya mawu.

Zofunikira pa Zachilengedwe ndi Kutsatira Malamulo

Malo akunja amachititsa zida zamawu kukhala ndi kutentha kwambiri, mankhwala, ndi kupsinjika kwakuthupi kwa nthawi yayitali. Cholakwika chomwe chimachitika nthawi zambiri ndikuyang'ana kwambiri magwiridwe antchito a mawu pomwe kunyalanyaza kulimba komwe kumafunikira kuti zinthu zipitirire kukhala bwino. Kunyalanyaza zofunikira zachilengedwe ndi kutsatira malamulo kumatsimikizira kuwonongeka mwachangu, kuwonjezeka kwa ndalama zosamalira, komanso ngongole zomwe zingachitike mwalamulo.

Yang'anani ma IP ratings, zipangizo, ndi chitetezo cha dzimbiri

Ma rating a Ingress Protection (IP) ndiye mzere woyamba wa chitetezo, komabe nthawi zambiri amamvedwa molakwika ndi opanga makina.Chiyeso cha IP65Zimateteza ku majeti amadzi otsika mphamvu, koma malo omwe amayikidwa omwe akukumana ndi mphepo yamkuntho, kugwetsa mwachindunji, kapena malo am'madzi amafunikira satifiketi ya IP66 kapena IP67 kuti apeze chitetezo chokwanira cha fumbi ndi madzi okwera mphamvu. Ukadaulo wazinthu umagwiranso ntchito yofunika kwambiri. Pulasitiki yokhazikika ya ABS imawonongeka ikakumana ndi ultraviolet (UV) kwa nthawi yayitali, imakhala yofooka komanso yofooka mkati mwa zaka ziwiri kapena zitatu. Kuti zikhale nthawi yayitali, malo omangira ayenera kugwiritsa ntchito polycarbonate yokhazikika ya UV, mapulasitiki olimbikitsidwa ndi fiberglass (FRP), kapena aluminiyamu yokutidwa ndi ufa. M'malo am'mphepete mwa nyanja kapena m'mafakitale olemera, chitetezo cha dzimbiri ndichofunika kwambiri; mabulaketi oyika ndi zida ziyenera kupangidwa kuchokera ku chitsulo chosapanga dzimbiri cha 316L, chomwe chingathe kudutsa mayeso a ASTM B117 salt spray kwa maola osachepera 500 popanda kupanga dzimbiri lofiira.

Konzani makina a 70V kapena 100V ndi chipinda chachikulu cha amplifier

Kugwiritsa ntchito makina ogawa a 70V kapena 100V kumafuna kukonzekera bwino kwamagetsi kuti aganizire za kusintha kwa chilengedwe monga kusinthasintha kwakukulu kwa kutentha, komwe kumasintha kukana kwa chingwe ndi mphamvu ya katundu. Cholakwika chachikulu pakupanga makina ndikulephera kugwiritsa ntchito malo okwanira a amplifier kuti athetse kusinthasintha kumeneku komanso kusagwira ntchito bwino kwa ma transformer oyenda pansi. Njira zabwino kwambiri zamakampani zimafuna kuti pakhale malire osachepera 20% a headroom. Ngati dera lili ndi ma speaker makumi awiri akunja omwe amalumikizidwa pa 30W iliyonse, katundu wonse ndi 600W; amplifier yofananayo iyenera kuyesedwa kuti ikhale ndi 720W kuti ipewe kudula, kusokoneza, ndi kutentha kwambiri panthawi ya mawu othamanga kwambiri. Kuphatikiza apo, kugwiritsa ntchito chingwe chakunja kwakutali kumabweretsa kutayika kwakukulu, komwe kumafuna waya wolemera kwambiri—monga 12 AWG kapena 14 AWG—kuti zitsimikizire kuti magetsi ofunikira afika pa sipika yakutali kwambiri pa perimeter.

Unikani malire a phokoso, malamulo okwezera, ndi miyezo yachitetezo

Kutsatira malamulo okhudza chilengedwe kumapitirira kupitirira kupulumuka kwa wokamba nkhaniyo koma kumaphatikizapo mphamvu yake yomveka m'malo ozungulira. Mafakitale ayenera kutsatira malamulo okhwima achitetezo pantchito, monga muyezo wa OSHA 1910.95, womwe umalamulira phokoso lalikulu pamalo ogwirira ntchito. Komabe, zizindikiro zochenjeza ziyenerabe kulowa m'phokoso la makina kuti likhale lothandiza. Mosiyana ndi zimenezi, malamulo a phokoso la m'maboma am'deralo nthawi zambiri amaletsa kufalikira kwa mawu pa mzere wa malo, nthawi zambiri kumaletsa mpweya woipa pa 60 mpaka 65 dBA masana komanso kutsika usiku. Kulinganiza zofunikira izi zotsutsana kumafuna ma angles olondola okweza, kuwerengera kotsika pansi, komanso kuyika ma speaker ambiri otsika mphamvu omwe amagawidwa mofanana pamalopo, m'malo modalira siren imodzi, yotulutsa mphamvu zambiri yomwe imaphwanya malire a phokoso la malire.

Kuwunika kwa Mtengo ndi Katundu Wonse

Kuwunika kwa sipika yakunja kuyenera kupitirira pepala laukadaulo kuti liphatikizepo luso la wopanga ndi mtengo wonse wa umwini (TCO). Kuyang'ana kwambiri pamtengo woyamba wa chipangizo ndi njira yogulira yomwe nthawi zonse imawonjezera ndalama zogwirira ntchito kwa nthawi yayitali kudzera mu kusintha pafupipafupi komanso kuthandizira kosayenera kwa ogulitsa.

Funsani mafunso okhudza kupeza zinthu zomwe zimasonyeza ubwino wa kapangidwe kake

Kuwunika ubwino wa kapangidwe kake kumafuna kufunsa mafunso okhudzana ndi kupeza zinthu zomwe zimadutsa m'mabuku a malonda a wopanga. Ogula ayenera kufunsa za zipangizo zomwe zimagwiritsidwa ntchito mu driver assembly yamkati. Mwachitsanzo, ma voice coil omwe amalumikizidwa pa Kapton kapena fiberglass formers amatha kutentha kwambiri kuposa ma aluminium formers wamba, zomwe zimachepetsa kwambiri chiopsezo cha kulephera kwa kutentha pansi pa katundu wopitilira, wokwera kwambiri. Mofananamo, kusankha pakati pa maginito a neodymium ndi ferrite kumakhudza chiŵerengero cha kulemera kwa wokamba, zovuta zomangira, komanso kusungidwa kwa maginito kwa nthawi yayitali kutentha kwambiri. Magulu ogula ayeneranso kufunsa zambiri zokhudzana ndi njira zoyesera za wopanga komanso kuchuluka kwa zolakwika zakale; OEM yodalirika iyenera kuwonetsa kuchuluka kwa zolakwika zosakwana 0.5% pagulu lake lonse la mawu akunja, mothandizidwa ndi zovuta.kuwongolera khalidwezolemba.

Yerekezerani nthawi yobweretsera, zida zosinthira, kulongedza, ndi ziphaso

Chithandizo cha katundu ndi pambuyo pokhazikitsa chimakhudza kwambiri TCO ya kuyika kulikonse kwakukulu. Pogula zinthu zambiri zama projekiti akusukulu kapena akumatauni, ogula ayenera kuwunika kuchuluka kwa Minimum Order Quantities (MOQ) ya wogulitsa, yomwe nthawi zambiri imakhala pakati pa mayunitsi 50 mpaka 200 kuti apange zinthu mwamakonda kapena mitundu yofanana. Nthawi yotsogolera ndi yofunika kwambiri, chifukwa kuchedwa kupereka ma speaker kumatha kulepheretsa ma projekiti onse a zomangamanga ndikuchedwetsa kuyambika kwa malo. Kuphatikiza apo, ogula ayenera kutsimikizira kupezeka kwa zida zosinthira, makamaka ma diaphragm a driver osinthira. Speaker yopangidwira kukonza munda imakulitsa moyo wa katunduyo ndikuletsa kufunikira kosintha kwathunthu kwa mayunitsi. Pomaliza, kutsimikizira ziphaso zapadziko lonse lapansi—monga CE, RoHS, ndi UL—kumatsimikizira kuti malondawo akukwaniritsa malangizo ofunikira achitetezo ndi chilengedwe, kuchepetsa zoopsa zalamulo ndi kutsatira malamulo kwa wogwirizanitsa makina ndi wogwiritsa ntchito.

Njira Yogwiritsira Ntchito Kusankha

Pofuna kupewa misampha yogula zinthu mwachisawawa, ogwirizanitsa ndi alangizi a mawu ayenera kugwiritsa ntchito njira yokhazikika komanso yokhazikika yosankhira ma speaker akunja. Njira imeneyi imatsimikizira kuti zinthu zonse zosinthira mawu, zachilengedwe, ndi zachuma zimayesedwa bwino, zomwe zimapangitsa kuti ntchitoyo ikwaniritse zofunikira popanda kugwiritsa ntchito ndalama zosafunikira.

Tsatirani kafukufuku wa sitepe ndi sitepe ndi njira yofotokozera malo

Njirayi imayamba ndi kafukufuku wathunthu wa malo, kupita patsogolo kuposa mapulani oyambira pansi kuti aphatikizepo deta ya malo, zopinga za zomangamanga, ndi mapu a phokoso la mlengalenga. Mainjiniya ayenera kugwiritsa ntchito pulogalamu yoyeserera mawu, monga EASE (Enhanced Acoustic Simulator for Engineers), kuti apereke chitsanzo cha momwe ma speaker osiyanasiyana amagawidwira mkati mwa malo enieni a 3D. Njirayi ikuphatikizapo kuyika ma coordinates olondola, ma ambient angles, ndi deta ya SPL ya ma speaker omwe akuperekedwa kuti apange mamapu otentha a acoustic coverage. Mwa kutsanzira chilengedwe asanagule, opanga amatha kuzindikira mithunzi ya mawu kumbuyo kwa kapangidwe kake ndikutsimikizira kuti Speech Transmission Index (STI) ya >0.5 imakwaniritsidwa m'malo onse omvera omwe asankhidwa, kuchotsa bwino zomwe zimaganiziridwa munjira yofotokozera.

Gwiritsani ntchito mndandanda wa zisankho kuti muyerekezere zosankha za okamba

Ma model omwe angakhalepo akapezeka kudzera mu kuyerekezera, matrix yoyezera zisankho imapereka njira yodziwira bwino zomwe zingasankhidwe komaliza. Chida ichi chimasintha mawonekedwe opikisana ndikuzigwirizanitsa ndi zomwe polojekitiyi ikufuna, kupewa tsankho ku chinthu chimodzi chodabwitsa monga mphamvu yamagetsi kapena kuyankha kwakanthawi kochepa.

Mwa kupereka zigoli (monga sikelo ya 1 mpaka 5) pa chitsanzo chilichonse cha wokamba nkhani motsatira miyezo yolemetsayi, magulu ogula zinthu akhoza kupanga mndandanda woyezera womwe umatsimikizira chisankho chomaliza chogula kwa omwe akukhudzidwa ndi polojekiti ndi olamulira azachuma.

Sankhani nthawi yoti muyike patsogolo mtengo, kulimba, kapena magwiridwe antchito

Gawo lomaliza la ntchito ndikudziwa nthawi yoti muchepetse komanso nthawi yoti muyike patsogolo zinthu zinazake kutengera moyo wa polojekitiyi. Mu mapulojekiti osakhalitsa kapena omwe ali ndi bajeti yochepa, kuchepetsa Ndalama Zogwiritsidwa Ntchito (Capex) kungafunike kusankha nyanga za ABS zokhazikika zomwe zimayembekezeredwa kuti zisinthidwe kwa zaka 3 mpaka 5. Komabe, pa zomangamanga zofunika kwambiri, mafakitale, kapena malo oyendera, kuika patsogolo kulimba ndi magwiridwe antchito sikungakambirane. M'malo awa, kuyika ndalama mu zokamba zapamwamba, zapamwamba zamadzi zomwe zili ndi miyezo yapamwamba yomveka bwino kumachepetsa Ndalama Zogwirira Ntchito (Opex) pochepetsa kukhazikitsidwa kwa kukonza, kukonza mwadzidzidzi, komanso zoopsa zamavuto. Kuzindikira kuti netiweki ya zokamba zakunja nthawi zambiri imakhala ndalama zoyambira zaka 10 mpaka 15 m'malo mwa chinthu chotayika ndiyo chitetezo chachikulu ku zolakwika zodula posankha.

Mfundo Zofunika Kwambiri

• Fotokozani ngati cholankhulira cha honi ndi cha paging yachizolowezi, mawu akumbuyo, kapena ma alamu a mawu adzidzidzi musanayerekezere mitundu kapena ziphaso.
• Musadalire mphamvu yokha; ganizirani kufunika kwa mphamvu, mphamvu ya SPL, kulephera kwa mphamvu, kufalikira, kuyankha pafupipafupi, komanso kuteteza chilengedwe.
• Werengerani SPL pa mtunda weniweni wa omvera chifukwa kuchuluka kwa mawu akunja nthawi zambiri kumatsika ndi 6 dB nthawi iliyonse mtunda umawirikiza kawiri.
• Kapangidwe ka mawu kuti azitha kumveka bwino poonetsetsa kuti mawu omwe aperekedwa nthawi zambiri amakhala 10 mpaka 15 dB pamwamba pa phokoso lozungulira.
• Sankhani zida zosapsa ndi mphepo, zosapsa ndi dzimbiri, kapena zosaphulika pamene malo oikirawo akhudzidwa ndi mvula, fumbi, mchere, kutentha kwambiri, kapena mpweya woopsa.
• Gwiritsani ntchito zokamba zambiri zoyikidwa bwino ngati pakufunika kutero m'malo mokakamiza chokamba chimodzi chachikulu kuti chiphimbe malo onse akunja.

Mafunso Ofunsidwa Kawirikawiri

Kodi cholakwika chachikulu chomwe chimachitika posankha cholankhulira cha horn chakunja ndi chiyani?

Cholakwika chofala kwambiri ndi kusankha potengera mphamvu ya wailesi yokha. Kuzindikira, kutalika kwa womvera, ngodya ya coverage, phokoso lozungulira, kuchuluka kwa nyengo, ndi ziphaso zofunika ndizofunikira kwambiri pa kumvetsetsa ndi kukhazikika kwa dziko lenileni.

Kodi cholankhulira chakunja chiyenera kukhala chokweza bwanji kuti mawu amveke bwino?

Pa mauthenga omveka bwino kapena adzidzidzi, mawu otuluka m'khutu la womvera nthawi zambiri ayenera kukhala 10 mpaka 15 dB pamwamba pa phokoso lozungulira. Malo ogwirira ntchito a 85 dBA angafunike osachepera 95 dBA pamalo omvetsera.

Nchifukwa chiyani mtunda wa okamba nkhani ndi wofunika pakupanga kwa PA yakunja?

Mu malo otseguka panja, SPL imatsika pafupifupi 6 dB nthawi iliyonse mtunda wa omvera ukawirikiza kawiri. Honi yoyesedwa pa 110 dB pa mita imodzi ikhoza kupereka pafupifupi 86 dB pa mamita 16, mphepo, zopinga, kapena mavuto oyikapo nyimbo asanaganizidwe.

Kodi ma speaker akunja ndi oyenera kugwiritsidwa ntchito m'malo oopsa a mafakitale?

Zitha kukhalapo, koma pokhapokha ngati zafotokozedwa za chilengedwe. Malo monga mafuta ndi gasi, migodi, malo ochitira ntchito zapamadzi, kapena mankhwala angafunike zida zolumikizirana zolimba, zosagwedezeka ndi nyengo, kapena zosaphulika zokhala ndi ziphaso zoyenera monga ATEX, CE, kapena FCC.

Ndi zinthu ziti zomwe ndiyenera kuyerekeza kupatula mphamvu?

Yerekezerani mphamvu yamagetsi, SPL yayikulu, kupopera kwa mphamvu yamagetsi kapena transformer, kuyankha pafupipafupi kwa mawu, ngodya yofalikira, chitetezo cha IP/nyengo, kukana dzimbiri, kutentha kogwirira ntchito, zida zoyikira, komanso kutsatira miyezo iliyonse ya PA kapena chitetezo cha moyo.