Kungani Ukukhetha Izipikha Zezimpondo Zangaphandle Kubalulekile
Ukukhetha isipikha se-horn sangaphandle kuhilela izinguquko eziyinkimbinkimbi ze-acoustic kanye nezemvelo. Iphutha elivamile embonini ukuphatha la madivayisi njengehadiwe ethengiswayo, okuholela ekungaqondakali kahle, ukumbozwa okunganele, kanye nokwehluleka kwangaphambi kwesikhathi. Abahlanganisi bezinhlelo kumele bahlole i-acoustic physics kanye nemikhawulo ethile yesayithi ukuze bagweme ukulungiswa okubizayo. Lapho abaphathi bephrojekthi bethatha kancane izidingo ezinzima zokusatshalaliswa komsindo wangaphandle, basengozini yokusebenzisa izinhlelo ezihluleka ukungena phansi komsindo ozungezile noma eziwohloka ngokushesha ngaphansi kokucindezeleka kwemvelo. Ukuqaphela uhlobo olubucayi lwale nqubo yokukhetha kuyisinyathelo sokuqala sokwakha i-emergency, eqondakalayo.ikheli lomphakathinoma ingqalasizinda yokuphepha kokuphila.
Chaza izinhloso zephrojekthi kanye namacala okusetshenziswa
Iphutha lokuqala livame ukuba semigomweni yephrojekthi engachazwanga kahle. Izipikha ze-horn zangaphandle zisebenza imisebenzi eyahlukahlukene, kusukela ekubhaleni i-paging evamile kanye nomculo wangemuva kuya ezinhlelweni ze-alamu yezwi eziphuthumayo ezibucayi. Uhlelo ngalunye ludinga izindlela zokusebenza ezihlukile. Isibonelo, uhlelo lwe-alamu yezwi kumele luhambisane nezindinganiso zokuphepha empilweni eziqinile, njenge-EN 54-24 noma i-UL 1480, ezidinga ama-terminal akhethekile angashisi umlilo, ama-fuse okushisa, kanye nezici ezithile zokuhlakazeka. Ngokuphambene nalokho, i-isikhulumi se-paging yezimbonikungase kubeke phambili umkhiqizo ophezulu kunokukhiqiza okuphezulu noma ukusinda komlilo. Ukwehluleka ukuchaza lezi zimo zokusetshenziswa ekuqaleni kwephrojekthi ngokuvamile kuphumela ekuchazeni isikhulumi esingenalo ibanga elidingekayo lemvamisa yenkulumo ecacile noma esingaphansi kwezitifiketi zomthetho eziphoqelekile.
Hlola indawo embozwe, izinga lomsindo, kanye nebanga labalaleli
Ukuhlola indawo yokumboza kudinga ukubalwa okunembile kwebanga labalaleli kanye namazinga omsindo ozungezile, kodwa onjiniyela abaningi bathembele ekulinganisweni kwekhwalithi kunedatha ye-acoustic eqinisekisiwe. Umthetho wesikwele ophambene ubeka ukuthi izinga lokucindezela komsindo (i-SPL) lehla ngo-6 dB kukho konke ukuphindaphindwa kwebanga ensimini ekhululekile. Uma isikhulumi se-horn yangaphandle sikhiqiza i-110 dB kumitha eli-1, i-SPL izokwehla ibe cishe yi-86 dB kumamitha ayi-16, bese yehla ibe yi-80 dB kumamitha angama-32. Ngaphezu kwalokho, izimiso ezijwayelekile zokuklama i-acoustic ziphoqelela ukuthi umsindo osakazwayo kumele udlule izinga lomsindo ozungezile okungenani yi-10 kuya ku-15 dB ukuqinisekisa ukuzwakala kwenkulumo. Egcekeni lezimboni elinomsindo ozungezile ophansi ongu-85 dBA, isikhulumi kumele sinikeze okungenani i-95 dBA endlebeni yomlaleli. Ukungazinaki lezi zibalo kuholela ezindaweni ezifile noma umsindo ophambene njengoba ama-amplifier ecindezelwa ekusikeni ukuze kulungiswe ukuhlela okunganele kwe-acoustic.
Imininingwane Ebalulekile Okufanele Iqhathaniswe
Ukuqhathanisa imininingwane yobuchwepheshe kuyisigaba esibucayi lapho ukuhlolwa okungaphezulu kuvame ukuholela ekuhlulekeni kwesistimu. Amaqembu okuthenga avame ukungalungi ukuhlola izilinganiso zamandla kuma-watt, ngokuyiphutha elinganisa i-wattage ephezulu nomphumela we-acoustic ophakeme. Ukuqonda okuphelele kwemininingwane ye-electro-acoustic kuyadingeka ukuqinisekisa ukuthi ihadiwe ekhethiwe ihambisana namaqiniso angokoqobo endawo yokusabalalisa.
Qonda i-SPL, ukuzwela, isilinganiso samandla, kanye ne-impedance
Isilinganiso esibaluleke kakhulu sanoma yisiphi isikhulumi se-horn yangaphandle ukuzwela, okulinganiswa ngama-decibel angu-1 watt kanye ne-1 meter (dB @ 1W/1m). Isikhulumi se-horn esisebenza kahle kakhulu esinozwela lwe-110 dB sizodinga amandla amancane kakhulu e-amplifier ukuze kufezwe i-SPL eqondiwe uma kuqhathaniswa nemodeli enokuzwela kwe-95 dB. Onjiniyela kumele babale i-SPL ephezulu ngokubheka kokubili ukuzwela kanye nesilinganiso samandla esiphezulu kunokubheka i-wattage yodwa. Ngaphezu kwalokho, ukufanisa i-impedance kubalulekile. Ngenkathi izikhulumi ze-8-ohm zifanelekela ukusebenza okufushane, okunamandla aphansi, ukufakwa okukhulu kwangaphandle kuncike ezinhlelweni zomsindo ezisatshalaliswa ze-70V noma ze-100V ukuze kuncishiswe ukwehla kwe-voltage phezu kobude bekhebula obukhulu. Ukukhetha izilungiselelo ze-transformer tap ezingalungile noma ukungafani ne-impedance yomugqa ophelele kungalimaza kakhulu ukusebenza, kungenise ukuphazamiseka, noma kulimaze kabi imishini yokukhulisa.
Hlola ukuqondisa, impendulo yemvamisa, kanye nokuqondakala kwenkulumo
Ukuqondisisa kuncike kakhulu ekuqondiseni nasekuphenduleni kwemvamisa. Izikhulumi ze-Horn ziqondisa ngokwemvelo; i-engeli evamile yokusabalala ingaba ama-degrees angu-60 ngokuvundlile ngama-degrees angu-40 ngokuvundlile. Ukwehluleka ukucabangela le nkomba ye-directivity (Q) kuphumela emisebeni emincane yomsindo engaphuthelwa izilaleli ezingaphandle, okudala izindawo ezishisayo ze-acoustic kanye nezindawo ezifile. Impendulo yemvamisa ibaluleke ngokulinganayo. Ngenkathi ama-paging horn ajwayelekile ngokuvamile esebenza phakathi kwama-300 Hz nama-8 kHz—anele ukudlulisa izwi lomuntu okuyisisekelo—awanele umsindo ophelele. Ama-music horns asebenzisa izindawo ezinkulu kanye nemiklamo yomshayeli wezindlela ezimbili ukwandisa impendulo kusuka ku-100 Hz kuya ku-15 kHz. Ekugcineni, lezi zici ziphetha nge-Speech Transmission Index (STI). I-STI eqondiwe engu->0.5 iyadingeka ngokuvamile ukuze kuqondwe kahle izinhlelo zekheli lomphakathi, okuyisilinganiso esingenakufezwa uma impendulo yemvamisa yesikhulumi noma ukuqondisa kwayo kungahambelani kahle nesikhala se-acoustic.
Sebenzisa ithebula lokuqhathanisa ukuze ulungise imininingwane
Ukuze kulungiswe lezi zincazelo futhi kugwenywe i-jargon yokumaketha ethile yomkhiqizi, abahlanganisi kufanele basebenzise i-matrix yokuqhathanisa ejwayelekile. Lokhu kuqinisekisa ukuthi iziguquguquko ezifana nokuzwela zilinganiswa ngaphansi kwezimo ezifanayo (isb., 1W/1m on-axis) nokuthi ama-engeli okusabalala ashiwo ngemvamisa efanayo, ngokuvamile i-2 kHz.
| Ukuhlukaniswa Kwezikhulumi | Ukuzwela Okuvamile (1W/1m) | Impendulo Yokuvama | Ukusabalala Okuvundlile (ku-2kHz) | I-SPL Ejwayelekile Ejwayelekile |
|---|---|---|---|---|
| Uphondo Olujwayelekile Lokubuka Amaphayiji | 105 – 110 dB | 300 Hz – 8 kHz | 60° – 90° | 120 – 125 dB |
| Uphondo Lomculo Olunezindlela Ezimbili | 95 – 100 dB | 100 Hz – 15 kHz | 90° – 120° | 115 – 120 dB |
| Ukuphonsa Okude / Amandla Aphezulu | 112 – 115 dB | 400 Hz – 7 kHz | 40° – 60° | 130 – 135 dB |
Ukusebenzisa lolu hlaka kuvumela abaklami ukuthi babone ngokushesha izinto ezingavamile, njengomkhiqizi othi uhlakazeka kakhulu kanye namakhono amakhulu okuphonsa isikhathi eside, okuphikisana nesayensi eyisisekelo yokusabalala kwamandla e-acoustic.
Izidingo Zemvelo Nokuthobela Imithetho
Izindawo zangaphandle zibeka imishini yomsindo ekucindezelekeni okukhulu kokushisa, kwamakhemikhali, kanye nokwenyama isikhathi eside. Iphutha elivamile ukubheka phambili ukusebenza kwe-acoustic ngenkathi unganaki ukuqina okudingekayo ukuze kusindiswe lezi zimo ezidinga amandla. Ukunganaki izidingo zemvelo kanye nokuthobela imithetho kuqinisekisa ukuwohloka okusheshayo, ukwanda kwezindleko zokulungisa, kanye nezikweletu zomthetho ezingaba khona.
Hlola izilinganiso ze-IP, izinto zokwakha, kanye nokuvikelwa kokugqwala
Izilinganiso zokuvikela ukungena (i-IP) ziyindlela yokuqala yokuzivikela, kodwa zivame ukungaqondwa kahle ngabaklami bezinhlelo.Isilinganiso se-IP65ivikela ezindizeni zamanzi ezinomfutho ophansi, kodwa ukufakwa okuvezwe eziphephweni ezinkulu, ezindaweni eziqondile, noma ezindaweni zasolwandle kudinga isitifiketi se-IP66 noma se-IP67 sokuvikela uthuli oluphelele kanye nokuvikeleka kwamanzi okunomfutho ophezulu. Ubunjiniyela bezinto budlala indima ebaluleke ngokulinganayo. Ipulasitiki ejwayelekile ye-ABS yonakala ngaphansi kokuvezwa isikhathi eside kwe-ultraviolet (UV), iba buthakathaka futhi ibe sengozini ngokwesakhiwo phakathi neminyaka emibili kuya kwemithathu. Ukuze ihlale isikhathi eside, izindawo ezivalekile kumele zisebenzise i-UV-stabilized polycarbonate, ipulasitiki eqiniswe nge-fiberglass (FRP), noma i-aluminium embozwe ngempuphu. Ezindaweni ezisogwini noma ezimbonini ezisindayo, ukuvikelwa kokugqwala kubaluleke kakhulu; amabakaki okufaka kanye nehadiwe kumele kwenziwe ngensimbi engagqwali ye-marine-grade 316L, ekwazi ukudlula ukuhlolwa kwe-ASTM B117 salt spray okungenani amahora angu-500 ngaphandle kokwakheka kokugqwala okubomvu.
Hlela izinhlelo ze-70V noma ze-100V kanye ne-headroom ye-amplifier
Ukusebenzisa izinhlelo ezisatshalaliswayo ze-70V noma ze-100V kudinga ukuhlela okuqinile kukagesi ukuze kubhekwe izinguquko zemvelo ezifana nokushintshashintsha kwezinga lokushisa okukhulu, okushintsha ukumelana kwekhebula kanye nokuguquguquka komthwalo. Iphutha elibalulekile ekwakhiweni kwesistimu ukwehluleka ukufaka i-headroom ye-amplifier eyanele yokusingatha lokhu kushintshashintsha kanye nokungasebenzi kahle okungokwemvelo kwama-transformer aphansi. Imikhuba emihle yemboni idinga okungenani umkhawulo we-headroom ongu-20%. Uma isekethe iqukethe izikhulumi ezingamashumi amabili zangaphandle ezicindezelwe ku-30W ngayinye, umthwalo ophelele ungu-600W; i-amplifier ehambisanayo kumele ilinganiswe okungenani ku-720W ukuvimbela ukunqunywa, ukuphambuka, kanye nokushisa ngokweqile ngesikhathi semithwalo yomsindo enamandla ephezulu. Ngaphezu kwalokho, ukusebenza kwekhebula elide langaphandle kuletha ukulahlekelwa okukhulu kokufakwa, okudinga ucingo olusindayo lwe-gauge—njenge-12 AWG noma i-14 AWG—ukuqinisekisa ukuthi i-voltage edingekayo ifinyelela esipikheni esikude kakhulu kumjikelezo.
Buyekeza imikhawulo yomsindo, imithetho yokufaka, kanye nezindinganiso zokuphepha
Ukuthobela imvelo kudlulela ngale kokusinda komzimba kwesipika kufaka phakathi umthelela waso we-acoustic endaweni ezungezile. Izikhungo zezimboni kumele zilandele imithetho eqinile yokuphepha emsebenzini, njenge-OSHA standard 1910.95, elawula ukuchayeka okukhulu komsindo endaweni yokusebenza. Kodwa-ke, izimpawu zokuxwayisa kumele zisangene ngomsindo wemishini ukuze zisebenze kahle. Ngokuphambene nalokho, imithetho yomsindo kamasipala wendawo ivame ukuvimbela ukuchitheka kwe-acoustic emgqeni wesakhiwo, ngokuvamile ivala ukukhishwa kwegesi ku-60 kuya ku-65 dBA ngezikhathi zasemini ngisho nangaphansi ebusuku. Ukulinganisa lezi zidingo ezingqubuzanayo kudinga ama-engeli aqondile okufaka, izibalo zokuthambekela phansi, kanye nokufakwa kwamasu kwezikhulumi eziningi ezinama-wattage aphansi ezisatshalaliswa ngokulinganayo endaweni, kunokuthembela ku-siren eyodwa, ekhipha kakhulu ephula imikhawulo yomsindo wemingcele.
Ukuhlolwa Kwezindleko Zomhlinzeki Nezonke
Ukuhlolwa kwesipikha se-horn sangaphandle kumele kudlulele ngale kweshidi lemininingwane yobuchwepheshe ukuze kuhlanganiswe amakhono okukhiqiza omhlinzeki kanye nezindleko eziphelele zobunikazi (i-TCO). Ukugxila kuphela entengo yeyunithi yokuqala kuyisu lokuthenga elinombono omfushane elihlala likhuphula izindleko zokusebenza zesikhathi eside ngokushintsha njalo kanye nokusekelwa okungekuhle kwabathengisi.
Buza imibuzo yokuthola ulwazi eveza ikhwalithi yokwakha
Ukuhlola ikhwalithi yokwakha kudinga ukubuza imibuzo eqondiwe yokuthola ulwazi efinyelela ngale kwezincwadi zokumaketha zomkhiqizi. Abathengi kumele babuze ngezinto ezithile ezisetshenziswa ekuhlanganisweni kwangaphakathi komshayeli. Isibonelo, ama-voice coil aboshwe kuma-former e-Kapton noma e-fiberglass amelana namazinga okushisa aphezulu kakhulu kunama-former e-aluminium ajwayelekile, okunciphisa kakhulu ingozi yokwehluleka kokushisa ngaphansi komthwalo oqhubekayo, ophakeme. Ngokufanayo, ukukhetha phakathi kwama-magnets e-neodymium kanye ne-ferrite kuthinta isilinganiso sesisindo-kuya-kokukhipha sesipikha, ubunzima bokufaka, kanye nokugcinwa kwe-magnetic yesikhathi eside ekushiseni okukhulu. Amaqembu okuthenga kufanele futhi afune idatha ye-empirical kumaphrothokholi okuhlola okuphela komugqa womkhiqizi kanye namazinga omlando wokukhubazeka; i-OEM ethembekile kufanele ibonise izinga lokukhubazeka elingaqinisekiswa elingaphansi kuka-0.5% kulo lonke iphothifoliyo yayo yomsindo wangaphandle, esekelwa yi-strictiveikhwalithi yokulawulaimibhalo.
Qhathanisa izikhathi zokulethwa, izingxenye ezisele, ukupakishwa, kanye nezitifiketi
Ukusekelwa kwe-logistics kanye nokusekelwa kwangemva kokufakwa kuthonya kakhulu i-TCO yanoma yikuphi ukuthunyelwa okukhulu. Lapho bethola inani elikhulu lamaphrojekthi ekhampasi noma kamasipala, abathengi kumele bahlole i-Minimum Order Quantities (MOQ) yomhlinzeki, evame ukuba phakathi kwamayunithi angu-50 kuya kwangu-200 okwenziwa ngokwezifiso noma ukufana kombala othize. Izikhathi zokuhola zibaluleke ngokulinganayo, njengoba ukubambezeleka kokulethwa kwezikhulumi kungavimba amaphrojekthi wonke engqalasizinda futhi kulibazise ukuqaliswa kwesikhungo. Ngaphezu kwalokho, abathengi kumele baqinisekise ukutholakala kwezingxenye ezisele ze-modular, ikakhulukazi ama-diaphragm omshayeli wokufaka esikhundleni. Isipikha esenzelwe ukulungiswa kwensimu sandisa umjikelezo wokuphila kwempahla futhi sichitha isidingo sokufakwa kweyunithi ephelele. Okokugcina, ukuqinisekisa izitifiketi zamazwe ngamazwe—njenge-CE, i-RoHS, kanye ne-UL—kuqinisekisa ukuthi umkhiqizo uhlangabezana neziqondiso ezibalulekile zokuphepha kanye nezemvelo, ukunciphisa izingozi zomthetho kanye nokuthobela imithetho yomhlanganisi wesistimu kanye nomsebenzisi wokugcina.
Uhlelo Lokusebenza Lokukhetha Olusebenzayo
Ukuze kugwenywe izingibe zokuthenga okungahleliwe, abahlanganisi kanye nabeluleki be-acoustic kumele basebenzise indlela yokusebenza ehlelekile nehlelekile yokukhetha izikhulumi ze-horn zangaphandle. Le ndlela yokwenza iqinisekisa ukuthi zonke iziguquguquki ze-acoustic, zemvelo, kanye nezezimali zilinganiswa ngokulingana, okuholela ekusetshenzisweni okuhlangabezana nezidingo zokusebenza ngaphandle kokusebenzisa imali engadingekile.
Landela inqubo yokuhlola indawo ngesinyathelo ngesinyathelo kanye nenqubo yokucacisa
Inqubo iqala ngokuhlola indawo okubanzi, okudlulela ngale kwezinhlelo eziyisisekelo zephansi ukuze kufakwe idatha yendawo, izithiyo zokwakha, kanye nemephu yomsindo we-ambient eyenzeka nge-empirical. Onjiniyela kufanele basebenzise isofthiwe yokulingisa i-acoustic, njenge-EASE (Enhanced Acoustic Simulator for Engineers), ukuze babonise amaphethini okusabalala kwezikhulumi ezahlukene ze-horn ngaphakathi kwendawo ethile ye-3D. Le nqubo yesinyathelo ngesinyathelo ihilela ukufaka ama-coordinates anembile, ama-agimenti e-agimenti, kanye nedatha ye-SPL yezikhulumi eziphakanyisiwe ukuze kukhiqizwe amamephu okushisa okumbozwa kwe-acoustic. Ngokulingisa indawo ngaphambi kokuthenga, abaklami bangabona izithunzi ze-acoustic ngemuva kwezakhiwo futhi baqinisekise ukuthi i-target Speech Transmission Index (STI) engu->0.5 ifinyelelwa kuzo zonke izindawo ezikhethiwe zabalaleli, okususa ngempumelelo ukuqagela enkambisweni yokucacisa.
Sebenzisa i-matrix yesinqumo ukuqhathanisa izinketho zesipikha
Uma amamodeli angaba khona esehlonziwe ngokulingisa, i-matrix yesinqumo esilinganiselwe inikeza uhlaka oluqondile lokukhetha kokugcina. Leli thuluzi lenza kube lula izici ezincintisanayo futhi lizivumelanise nezinto eziza kuqala zephrojekthi, livimbele ukubandlulula ekucacisweni okukodwa okuhlaba umxhwele njenge-peak wattage noma impendulo ende yemvamisa ephansi.
| Izindlela Zokuhlola | Ukulinganisa (Okujwayelekile) | I-Paging Priority Score | Isilinganiso Sokubaluleka Kwe-Alamu Yezwi | Isikolo Sokubaluleka Komculo |
|---|---|---|---|---|
| Ukuphuma kwe-Acoustic (Ukuzwela/i-SPL) | 30% | Phezulu | Okubalulekile | Okumaphakathi |
| Impendulo Ephindaphindayo Nokwethembeka | 20% | Phansi | Okumaphakathi | Okubalulekile |
| Ukuqina Kwemvelo (IP/UV) | 25% | Phezulu | Phezulu | Phezulu |
| Izitifiketi (isb., EN 54-24) | 15% | Phansi | Okubalulekile | Phansi |
| Izindleko Eziphelele Zobunikazi | 10% | Okumaphakathi | Phansi | Okumaphakathi |
Ngokunikeza amaphuzu (isb., esikalini esingu-1 kuya ku-5) kumodeli ngayinye yesipikha ngokuhambisana nalezi zindlela ezilinganiselwe, amaqembu okuthenga angakha izinga elilinganiselwe eliqinisekisa isinqumo sokugcina sokuthenga kubabambiqhaza bephrojekthi kanye nabalawuli bezezimali.
Nquma ukuthi uzobeka nini phambili izindleko, ukuqina, noma ukusebenza
Isinyathelo sokugcina emsebenzini ukunquma ukuthi kufanele kubekwe eceleni nini nokuthi kufanele kubekwe phambili nini izimfanelo ezithile ngokusekelwe emjikelezweni wokuphila kwephrojekthi. Ekufakweni kwesikhashana noma kumaphrojekthi anesabelomali esiningi, ukunciphisa i-Capital Expenditure (i-Capex) kungase kudingeke ukuthi kukhethwe izimpondo ze-ABS ezijwayelekile ngomjikelezo wokushintsha weminyaka emi-3 kuya kwemi-5 olindelwe. Kodwa-ke, engqalasizinda ebalulekile, izitshalo zezimboni, noma izindawo zokuthutha, ukubeka phambili ukuqina nokusebenza akunakuxoxiswana ngakho. Kulezi zimo, ukutshala imali kuzikhulumi ze-premium, zezinga lolwandle ezinezilinganiso ezithuthukisiwe zokuqondisisa kunciphisa i-Opectional Expenditure (i-Opex) ngokunciphisa ukuqaliswa kokugcinwa, ukulungiswa okuphuthumayo, kanye nezingozi zesibopho. Ukuqaphela ukuthi inethiwekhi yezikhulumi ze-horn yangaphandle ngokuvamile iwutshalomali lwengqalasizinda lweminyaka eyi-10 kuya kweyi-15 kunokuba kube yinto elahlwayo kuyisivikelo esiphezulu emaphutheni okukhetha abizayo.
Izinto Ezibalulekile Okufanele Uzicabangele
- Chaza ukuthi isipikha se-horn singesokwenza ama-paging ajwayelekile, umsindo wangemuva, noma ama-alamu ezwi aphuthumayo ngaphambi kokuqhathanisa amamodeli noma izitifiketi.
- Ungathembeli kumandla kagesi kuphela; beka phambili ukuzwela, i-SPL ephezulu, i-impedance, ukuhlakazeka, impendulo yemvamisa, kanye nokuvikelwa kwemvelo.
- Bala i-SPL ebangeni langempela lomlaleli ngoba izinga lomsindo wangaphandle livame ukwehla ngo-6 dB isikhathi ngasinye ibanga liphindeka kabili.
- Idizayini yokuqondakala kwenkulumo ngokuqinisekisa ukuthi umsindo olethwayo ngokuvamile u-10 kuya ku-15 dB ngaphezu komsindo ozungezile.
- Khetha imishini engamelani nesimo sezulu, engagqwali, noma engaqhumi uma ukufakwa kuvezwe emvuleni, othulini, kusawoti, emazingeni okushisa aphezulu, noma kumagesi ayingozi.
- Sebenzisa izipikha eziningi ezibekwe kahle uma kudingeka esikhundleni sokuphoqa isipikha esisodwa esikhulu kakhulu ukuthi simboze yonke indawo yangaphandle.
imibuzo ejwayelekile ukubuzwa
Yiliphi iphutha elivame kakhulu lapho ukhetha isipikha se-horn sangaphandle?
Iphutha elivame kakhulu ukukhetha nge-wattage kuphela. Ukuzwela, i-SPL ebangeni labalaleli, i-engeli yokumboza, umsindo we-ambient, isilinganiso sezulu, kanye nezitifiketi ezidingekayo kubaluleke kakhulu ekuqondeni nasekuqineni komhlaba wangempela.
Kufanele sikhulume kangakanani isikhulumi se-horn yangaphandle ukuze sicacise kahle?
Ukuze uthole imiyalezo eqondakalayo noma ephuthumayo, i-speaker output endlebeni yomlaleli kufanele ibe ngu-10 kuya ku-15 dB ngaphezu kwezinga lomsindo ozungezile. I-industrial garden engu-85 dBA ingadinga okungenani i-95 dBA endaweni yokulalela.
Kungani ibanga lesipikha libalulekile ekwakhiweni kwe-PA yangaphandle?
Ezimweni zangaphandle ezikhululekile, i-SPL yehla cishe ngama-dB angu-6 njalo lapho ibanga lomlaleli liphindeka kabili. I-horn elinganiswe ku-110 dB kumitha eli-1 ingaletha cishe ama-dB angu-86 kumamitha ayi-16, ngaphambi kokuba kucatshangelwe umoya, izithiyo, noma izinkinga zokufaka.
Ingabe izipikha ze-horn zangaphandle zifanelekile ezindaweni zezimboni eziyingozi?
Zingaba khona, kodwa kuphela uma zichazwe ngokwemvelo. Izindawo ezifana nezindawo zikawoyela negesi, izimayini, ezolwandle, noma zamakhemikhali zingadinga imishini yokuxhumana eqinile, engangenisi isimo sezulu, noma engaqhumi enezitifiketi ezifanele njenge-ATEX, CE, noma i-FCC.
Yiziphi izici okufanele ngiziqhathanise ngaphandle kwesilinganiso samandla?
Qhathanisa ukuzwela, i-SPL ephezulu, ama-impedance noma ama-transformer taps, impendulo yemvamisa yenkulumo, i-engeli yokusabalala, ukuvikelwa kwe-IP/isimo sezulu, ukumelana nokugqwala, izinga lokushisa lokusebenza, ihadiwe yokufaka, kanye nokuhambisana nanoma yiziphi izindinganiso ze-PA noma zokuphepha empilweni.
Isikhathi sokuthunyelwe: Juni-20-2026