Kutheni Ukukhetha Isithethi Sangaphandle Kubalulekile
Ukukhetha isithethi se-horn yangaphandle kubandakanya izinto ezintsonkothileyo ze-acoustic kunye ne-environmental variables. Impazamo eqhelekileyo kushishino kukuphatha ezi zixhobo njengezixhobo ezithengiswayo, nto leyo ekhokelela ekubeni zingaqondwa kakuhle, ukugqunywa okunganelanga, kunye nokusilela kwangethuba. Abahlanganisi beenkqubo kufuneka bavavanye i-acoustic physics kunye nemida ethile yesiza ukuze baphephe ukuhlaziywa okubiza kakhulu. Xa abaphathi beprojekthi bengayinaki imfuno enzima yokusasazwa kwesandi sangaphandle, babeka emngciphekweni wokusebenzisa iinkqubo ezingakwaziyo ukungena phantsi kwengxolo engqongileyo okanye eziwohloka ngokukhawuleza phantsi koxinzelelo lwendalo. Ukuqonda imeko ebalulekileyo yale nkqubo yokukhetha linyathelo lokuqala ekwakheni isixhobo esiqinileyo nesiqondakalayo.idilesi kawonke-wonkeokanye iziseko zokhuseleko lobomi.
Chaza iinjongo zeprojekthi kunye namatyala okusetyenziswa
Impazamo yokuqala idla ngokuba kwiinjongo zeprojekthi ezingachazwanga kakuhle. Izithethi ze-horn zangaphandle zisebenza imisebenzi eyahlukeneyo, ukusuka kwi-paging yesiqhelo kunye nomculo ongasemva ukuya kwiinkqubo ze-alamu yelizwi ezingxamisekileyo. Isicelo ngasinye sifuna imigangatho eyahlukeneyo yokusebenza. Umzekelo, inkqubo ye-alamu yelizwi kufuneka ihambelane nemigangatho engqongqo yokhuseleko lobomi, efana ne-EN 54-24 okanye i-UL 1480, efuna ii-terminals ezikhethekileyo ezingatshiyo, ii-fuses zobushushu, kunye neempawu ezithile zokusasazeka. Ngokwahlukileyo koko, i-isithethi sepeji yemizi-mvelisoKusenokubeka phambili imveliso ephezulu kunokuvelisa ngokuthembeka okuphezulu okanye ukusinda komlilo. Ukungaphumeleli ukuchaza la matyala okusetyenziswa ekuqaleni kweprojekthi kudla ngokuphumela ekuchazeni isithethi esingenalo uluhlu olufunekayo lwentetho ecacileyo okanye esingenazo iziqinisekiso zomthetho eziyimfuneko.
Vavanya indawo yokugubungela, inqanaba lengxolo, kunye nomgama wabaphulaphuli
Ukuvavanya indawo yokugubungela kufuna ukubalwa ngokuchanekileyo komgama wabaphulaphuli kunye namanqanaba engxolo ye-ambient, kodwa uninzi lweenjineli luxhomekeke kuqikelelo olusemgangathweni kunedatha ye-acoustic eqinisekisiweyo. Umthetho wesikwere esichaseneyo uyalela ukuba inqanaba loxinzelelo lwesandi (i-SPL) lehle nge-6 dB kuyo yonke iphindwe kabini yomgama kwindawo ekhululekileyo. Ukuba isithethi se-horn yangaphandle sivelisa i-110 dB kwimitha e-1, i-SPL iya kwehla iye kwi-86 dB kwiimitha ezili-16, kwaye yehle ngakumbi iye kwi-80 dB kwiimitha ezingama-32. Ngaphezu koko, imigaqo yoyilo lwe-acoustic eqhelekileyo iyalela ukuba isandi esisasazwayo kufuneka sidlule kwinqanaba lengxolo ye-ambient ubuncinane nge-10 ukuya kwi-15 dB ukuqinisekisa ukuqondwa kwentetho. Kwigadi yemizi-mveliso enomgangatho wengxolo ye-ambient we-85 dBA, isithethi kufuneka sinikeze ubuncinci be-95 dBA endlebeni yomphulaphuli. Ukungazinaki ezi zibalo ngokungenakuphepheka kukhokelela kwiindawo ezifileyo okanye kwisandi esigqwethekileyo njengoko ii-amplifier zinyanzelwa ukuba zikliphu ukuze kulungiswe ucwangciso lwe-acoustic olunganelanga.
Iinkcukacha ezibalulekileyo ekufuneka zithelekiswe
Ukuthelekisa iinkcukacha zobugcisa linqanaba elibalulekileyo apho uvavanyo oluphezulu ludla ngokukhokelela kwiimpazamo zenkqubo. Amaqela okuthenga adla ngokungaphumeleli ekuhloleni ukulinganiswa kwamandla kwiiwatts, ngempazamo elinganisa amandla aphezulu kunye nemveliso ephezulu ye-acoustic. Ukuqonda okubanzi kweenkcukacha ze-electro-acoustic kuyafuneka ukuqinisekisa ukuba izixhobo ezikhethiweyo zihambelana neenyani ezibonakalayo kwindawo yokusasazwa.
Qonda i-SPL, uvakalelo, umlinganiselo wamandla, kunye ne-impedance
Eyona metric ibalulekileyo kuyo nayiphi na isithethi se-horn yangaphandle bubuntununtunu, obulinganiswa ngee-decibels kwi-1 watt kunye ne-1 meter (dB @ 1W/1m). Isithethi se-horn esisebenza kakuhle kakhulu esinobuntununtunu be-110 dB siya kufuna amandla e-amplifier aphantsi kakhulu ukufezekisa i-SPL ekujoliswe kuyo xa kuthelekiswa nemodeli enobuntununtunu be-95 dB. Iinjineli kufuneka zibale i-SPL ephezulu ngokujonga zombini ububele kunye nomlinganiselo wamandla aphezulu endaweni yokujonga i-wattage yodwa. Ukongeza, ukuhambelana kwe-impedance kubalulekile. Ngelixa izithethi ze-8-ohm zifanelekile kwiindlela ezimfutshane, ezinamandla aphantsi, ukufakelwa okukhulu kwangaphandle kuxhomekeke kwiinkqubo ze-audio ezisasazwe nge-70V okanye i-100V ukunciphisa ukuhla kwe-voltage kubude bekhebula obukhulu. Ukukhetha useto lwe-transformer tap olungalunganga okanye ukungahambelani ne-total line impedance kunokonakalisa kakhulu ukusebenza, kubangele ukuphazamiseka, okanye konakalisa izixhobo ze-amplification ngendlela eyoyikisayo.
Vavanya ulwalathiso, impendulo yemvamisa, kunye nokuqondakala kwentetho
Ukuqonda kuxhomekeke kakhulu kwindlela ephendula ngayo isandi kunye nempendulo yesandi rhoqo. Izithethi zeempondo zijolise ngqo; i-engile eqhelekileyo yokusasazeka inokuba ngama-60 degrees ngokuthe tye ngama-40 degrees ngokuthe nkqo. Ukungaphumeleli ukuqwalasela olu luhlu lwendlela ebhekisa ngqo (Q) kubangela ukuba kubekho imitha emxinwa yesandi esiphuthelwa ngabaphulaphuli abakwicala, nto leyo edala iindawo ezishushu zesandi kunye neendawo ezifileyo. Impendulo yesandi rhoqo ibaluleke ngokulinganayo. Ngelixa iimpondo eziqhelekileyo zepaging zihlala zisebenza phakathi kwama-300 Hz kunye nama-8 kHz—ezaneleyo ekudluliseleni ilizwi lomntu ngokusisiseko—azinelanga kwisandi esipheleleyo. Iimpondo zomculo zisebenzisa iindawo ezinkulu kunye noyilo lwabaqhubi abajongana neendlela ezimbini ukwandisa impendulo ukusuka kwi-100 Hz ukuya kwi-15 kHz. Ekugqibeleni, ezi zinto ziphelela kwiNgxelo yoThumelo lweNtetho (STI). I-STI ekujoliswe kuyo ye >0.5 iyimfuneko ngokubanzi ukuze kuqondwe kakuhle kwiinkqubo zentetho kawonkewonke, i-metric engenakufunyanwa ukuba impendulo yesandi okanye indlela ebhekisa ngayo isithethi ayihambelani kakuhle nendawo yesandi.
Sebenzisa itheyibhile yokuthelekisa ukuze ulungelelanise iinkcukacha
Ukuze kulungiswe ezi nkcukacha kwaye kuthintelwe intetho yokuthengisa ethile yomenzi, abahlanganisi kufuneka basebenzise imatrix yokuthelekisa emiselweyo. Oku kuqinisekisa ukuba izinto eziguquguqukayo ezifana nobuntununtunu zilinganiswa phantsi kweemeko ezifanayo (umz., i-1W/1m kwi-axis) kwaye ii-angles ze-dispersion zichazwe kwi-frequency efanayo, ngesiqhelo i-2 kHz.
| Ukwahlulwahlulwa kwesithethi | Uvakalelo oluqhelekileyo (1W/1m) | Impendulo yeFrequency | Ukusasazeka ngokuthe tye (kwi-2kHz) | I-SPL Eqhelekileyo |
|---|---|---|---|---|
| Uphondo oluqhelekileyo lwePaging | 105 – 110 dB | 300 Hz – 8 kHz | 60° – 90° | 120 – 125 dB |
| Uphondo Lomculo Oluneendlela Ezimbini | 95 – 100 dB | 100 Hz – 15 kHz | 90° – 120° | 115 – 120 dB |
| Ukuphosa Okude / Amandla Aphezulu | 112 – 115 dB | 400 Hz – 7 kHz | 40° – 60° | 130 – 135 dB |
Ukusebenzisa esi sikhokelo kuvumela abayili ukuba bachonge ngokukhawuleza izinto ezingaqhelekanga, ezifana nomvelisi othi usasazeke kakhulu kunye nobuchule obukhulu bokuphosa ixesha elide, obuchasene nefiziksi yesiseko sokusasazwa kwamandla e-acoustic.
Iimfuneko zeNdalo kunye nokuThotyelwa kweMithetho
Iindawo zangaphandle zibeka izixhobo zesandi kubushushu obugqithisileyo, iikhemikhali, kunye noxinzelelo lomzimba ixesha elide. Impazamo eqhelekileyo kukubeka phambili ukusebenza kwe-acoustic ngelixa kutyeshelwa ukuqina okufunekayo ukuze kuphile ezi meko zinzima. Ukungahoyi iimfuno zokusingqongileyo kunye nokuthobela imithetho kuqinisekisa ukonakala ngokukhawuleza, ukunyuka kweendleko zokugcinwa, kunye namatyala asemthethweni anokubakho.
Jonga ukulinganiswa kwe-IP, izixhobo, kunye nokukhuselwa kokugqwala
Iireyithingi zoKhuseleko lokungena (IP) zezona ziphambili zokuzikhusela, kodwa zihlala zingaqondwa kakuhle ngabayili beenkqubo.Uvavanyo lwe-IP65ikhusela kwiijethi zamanzi ezinoxinzelelo oluphantsi, kodwa ukufakelwa okuvezwe kwizivuthuvuthu ezinkulu, ukuhla kwemvula ngokuthe ngqo, okanye kwiindawo zaselwandle kufuna isiqinisekiso se-IP66 okanye se-IP67 sokhuseleko olupheleleyo lothuli kunye nokhuseleko lwamanzi oluphezulu. Ubunjineli bezinto budlala indima ebaluleke ngokulinganayo. Iplastiki ye-ABS eqhelekileyo yonakala phantsi kokuvezwa kwe-ultraviolet (UV) ixesha elide, iba buthathaka kwaye yonakale ngokwesakhiwo kwiminyaka emibini ukuya kwemithathu. Ukuze ihlale ixesha elide, iindawo ezivalekileyo kufuneka zisebenzise i-UV-stabilized polycarbonate, iiplastiki eziqinisiweyo ze-fiberglass (FRP), okanye i-aluminium egqunywe ngumgubo. Kwiindawo zaselunxwemeni okanye kwiindawo zoshishino ezinzima, ukhuseleko lokugqwala lubaluleke kakhulu; iibrakethi zokufaka kunye nezixhobo kufuneka zenziwe ngentsimbi engagqwaliyo ye-316L yolwandle, ekwaziyo ukudlula uvavanyo lwe-ASTM B117 salt spray ubuncinane iiyure ezingama-500 ngaphandle kokwakheka kokugqwala okubomvu.
Isicwangciso seenkqubo ze-70V okanye ze-100V kunye ne-headroom ye-amplifier
Ukusebenzisa iinkqubo ezisasazwayo ze-70V okanye i-100V kufuna ucwangciso oluqinileyo lombane ukuze kujongwane nezinto eziguquguqukayo kwindalo ezifana nokuguquguquka kobushushu obugqithisileyo, okutshintsha ukumelana kweentambo kunye nokuguquguquka komthwalo. Impazamo ebalulekileyo kuyilo lwenkqubo kukusilela ukufaka i-headroom ye-amplifier eyaneleyo yokusingatha olu tshintsho kunye nokungasebenzi kakuhle kwee-transformers ezisezantsi. Iindlela ezilungileyo zoshishino zifuna ubuncinci be-20% ye-headroom margin. Ukuba isekethe inezithethi ezingamashumi amabini zangaphandle ezicinezelwe kwi-30W nganye, umthwalo uwonke yi-600W; i-amplifier ehambelanayo kufuneka ilinganiswe ubuncinci yi-720W ukuthintela ukunqunyulwa, ukuphazamiseka, kunye nokushisa kakhulu ngexesha lemithwalo yesandi enamandla kakhulu. Ngaphezu koko, ukusebenza kweentambo ezinde zangaphandle kungenisa ilahleko enkulu yokufakelwa, efuna ucingo olunzima lwe-gauge—njenge-12 AWG okanye i-14 AWG—ukuqinisekisa ukuba i-voltage efunekayo ifikelela kwisithethi esikude kakhulu kumda.
Hlola imida yengxolo, imithetho yokufakela, kunye nemigangatho yokhuseleko
Ukuthobela indalo kufikelela ngaphaya kokusinda komzimba wesithethi ukuya kubandakanya impembelelo yaso kwisandi kwindawo engqongileyo. Izakhiwo zoshishino kufuneka zilandele imigaqo engqongqo yokhuseleko emsebenzini, efana nomgangatho we-OSHA 1910.95, olawula ukuvezwa kwengxolo kwindawo yokusebenza. Nangona kunjalo, imiqondiso yesilumkiso kufuneka isangene kwingxolo yoomatshini abakwindawo yokusebenza ukuze isebenze. Ngokwahlukileyo koko, imithetho yengxolo kamasipala wasekuhlaleni idla ngokuthintela ukuchitheka kwesandi kumgca wepropathi, idla ngokubeka ukukhutshwa kwengxolo kwi-60 ukuya kwi-65 dBA ngexesha lasemini kwaye iphantsi nangakumbi ebusuku. Ukulinganisela ezi mfuno zingqubanayo kufuna ii-engile ezichanekileyo zokufaka, ukubalwa kokuthambekela ezantsi, kunye nokusasazwa kwezicwangciso zezithethi ezininzi ezine-wattage ephantsi ezisasazwa ngokulinganayo kwindawo, endaweni yokuxhomekeka kwi-siren enye, enesiphumo esiphezulu ephula imida yengxolo yomda.
Uvavanyo lweNdleko yoMboneleli kunye neZonke
Uvavanyo lwesithethi se-horn yangaphandle kufuneka ludlulele ngaphaya kwephepha leenkcukacha zobugcisa ukuze lubandakanye amandla okuvelisa omthengisi kunye neendleko zizonke zobunini (TCO). Ukugxila kuphela kwixabiso leyunithi yokuqala sisicwangciso sokuthenga esingenambono iphangaleleyo esihlala sinyusa iindleko zokusebenza zexesha elide ngokutshintshwa rhoqo kunye nenkxaso embi yabathengisi.
Buza imibuzo yokufumana ulwazi ebonisa umgangatho wokwakha
Ukuvavanya umgangatho wokwakha kufuna ukubuza imibuzo ejolise ekufumaneni ulwazi efikelela ngaphaya koncwadi lokuthengisa lomenzi. Abathengi kufuneka babuze ngezinto ezithile ezisetyenziswa kwindibano yangaphakathi yomqhubi. Umzekelo, ii-voice coils ezifakwe kwi-Kapton okanye kwi-fiberglass formers zimelana nobushushu obuphezulu kakhulu bokusebenza kune-aluminium formers eziqhelekileyo, nto leyo enciphisa kakhulu umngcipheko wokungaphumeleli kobushushu phantsi komthwalo oqhubekayo, ophezulu. Ngokufanayo, ukhetho phakathi kwe-neodymium kunye ne-ferrite magnets luchaphazela umlinganiselo wobunzima-kwi-output wesithethi, ubunzima bokufakelwa, kunye nokugcinwa kwemagnethi ixesha elide kubushushu obugqithisileyo. Amaqela okuthenga kufuneka afune idatha yobungqina kwiiprotokholi zovavanyo zokuphela komgca zomenzi kunye namazinga embali eempazamo; i-OEM ethembekileyo kufuneka ibonise izinga leempazamo elingqinisisekayo elingaphantsi kwe-0.5% kuyo yonke ipotifoliyo yayo yesandi yangaphandle, exhaswa yi-rigid.ulawulo lwemekoamaxwebhu.
Thelekisa amaxesha okunikezelwa kwempahla, izinto ezingasetyenziswanga, ukupakishwa, kunye neziqinisekiso
Inkxaso ye-logistics kunye nenkxaso emva kokufakelwa inefuthe elikhulu kwi-TCO yayo nayiphi na indawo enkulu yokuthunyelwa. Xa kuthengwa ubungakanani obukhulu beeprojekthi zekhampasi okanye zikamasipala, abathengi kufuneka bavavanye ubungakanani be-Minimum Order Quantities (MOQ) yomthengisi, edla ngokuba phakathi kweeyunithi ezingama-50 ukuya kuma-200 zokuqhuba imveliso eyenzelwe wena okanye ukufana kombala othile. Amaxesha okukhokela abaluleke ngokulinganayo, njengoko ukulibaziseka ekuhanjisweni kwesithethi kunokuthintela iiprojekthi zeziseko zophuhliso ziphela kunye nokulibazisa ukuqaliswa kwesakhiwo. Ngaphezu koko, abathengi kufuneka baqinisekise ukufumaneka kwezixhobo ezingasetyenziswayo, ngakumbi ii-diaphragms zomqhubi ezitshintshayo. Isithethi esenzelwe ukulungiswa kwentsimi sandisa ubomi bempahla kwaye siphelisa imfuneko yokutshintshwa kweyunithi epheleleyo. Okokugqibela, ukuqinisekisa iziqinisekiso zamazwe ngamazwe—ezifana ne-CE, i-RoHS, kunye ne-UL—kuqinisekisa ukuba imveliso iyahlangabezana nemiyalelo ebalulekileyo yokhuseleko kunye nokusingqongileyo, inciphisa umngcipheko wezomthetho kunye nowokuthobela umthetho kumdibanisi wenkqubo kunye nomsebenzisi wokugqibela.
Indlela Yokukhetha Esebenzayo
Ukuze kuthintelwe imigibe yokuthenga izinto ezingafunekiyo, abadibanisi kunye nabacebisi be-acoustic kufuneka basebenzise indlela yokusebenza ecwangcisiweyo necwangcisiweyo yokukhetha izithethi ze-horn zangaphandle. Le ndlela yokwenza izinto iqinisekisa ukuba zonke izinto eziguquguqukayo ze-acoustic, zendalo, nezemali zilinganiswa ngokwenyani, nto leyo ekhokelela ekusetyenzisweni okuhlangabezana neemfuno zokusebenza ngaphandle kwenkcitho engeyomfuneko.
Landela uphando lwendawo oluthatha inyathelo ngenyathelo kunye nenkqubo yeenkcukacha
Inkqubo iqala ngophando olupheleleyo lwendawo, oludlula izicwangciso zomgangatho ezisisiseko ukuze lubandakanye idatha ye-topographical, imiqobo yoyilo, kunye nemephu yengxolo ye-ambient empire. Iinjineli kufuneka zisebenzise isoftware yokulinganisa i-acoustic, efana ne-EASE (Enhanced Acoustic Simulator for Engineers), ukuze ibonise iipatheni zokusasazeka kwezithethi ezahlukeneyo ze-horn ngaphakathi kwendawo ethile ye-3D. Le nkqubo inyathelo ngenyathelo ibandakanya ukufaka ii-coordinates ezichanekileyo, ii-aginating engile, kunye nedatha ye-SPL yezithethi ezicetywayo ukuvelisa iimephu zobushushu zokugubungela i-acoustic. Ngokulinganisa indawo ngaphambi kokuthenga, abayili banokuchonga izithunzi ze-acoustic ngasemva kwezakhiwo kwaye baqinisekise ukuba i-target Speech Transmission Index (STI) ye->0.5 ifezekiswa kuzo zonke iindawo ezimiselweyo zabalaleli, ukususa ngempumelelo ukuqikelela kwinkqubo yenkcazo.
Sebenzisa imatriksi yesigqibo ukuthelekisa ukhetho lwesithethi
Nje ukuba iimodeli ezinokubakho zichongiwe ngokulinganisa, i-weighted decision matrix inika isakhelo esijolise ekukhetheni kokugqibela. Esi sixhobo silungisa iimpawu ezikhuphisanayo kwaye sizilungelelanise nezinto eziza kuqala zeprojekthi, sithintele ukuthambekela kwinkcazo enye emangalisayo efana ne-peak wattage okanye impendulo ende ye-low-frequency.
| Iikhrayitheriya zoVavanyo | Ubunzima (Ngokubanzi) | Amanqaku aPhambili okuPage | Amanqaku Aphambili E-alamu Yelizwi | Amanqaku Aphambili Omculo |
|---|---|---|---|---|
| Isiphumo se-Acoustic (Uvakalelo/i-SPL) | 30% | Phezulu | Okubalulekileyo | Iphakathi |
| Impendulo Ephindaphindwayo kunye Nokuthembeka | 20% | Iphantsi | Iphakathi | Okubalulekileyo |
| Ukuqina Kwendalo (IP/UV) | 25% | Phezulu | Phezulu | Phezulu |
| Iziqinisekiso (umz., EN 54-24) | 15% | Iphantsi | Okubalulekileyo | Iphantsi |
| Ixabiso lilonke lobunini | 10% | Iphakathi | Iphantsi | Iphakathi |
Ngokwabela amanqaku (umz., kwisikali esisuka ku-1 ukuya ku-5) kwimodeli nganye yesithethi ngokweekhrayitheriya ezilinganisiweyo, amaqela okuthenga anokuvelisa uluhlu olunokulinganiswa oluqinisekisa isigqibo sokugqibela sokuthenga kubachaphazelekayo beprojekthi kunye nabalawuli bezemali.
Gqiba ukuba uza kubeka phambili nini iindleko, ukuqina, okanye ukusebenza
Inyathelo lokugqibela kumsebenzi kukumisela ukuba kufuneka kubekwe bucala nini kwaye kufuneka kubekwe bucala nini iimpawu ezithile ngokusekelwe kumjikelo wobomi beprojekthi. Kwiifekthi zexeshana okanye kwiiprojekthi ezinqongophele kakhulu, ukunciphisa iNkcitho yeNkunzi (iCapex) kunokubangela ukuba kukhethwe iimpondo ze-ABS eziqhelekileyo kunye nomjikelo wokutshintshwa olindelweyo weminyaka emi-3 ukuya kwemi-5. Nangona kunjalo, kwiziseko ezibalulekileyo, kwizityalo zoshishino, okanye kwiindawo zothutho, ukubeka phambili ukuqina kunye nokusebenza akunakuxoxiswana. Kwezi meko, ukutyala imali kwizithethi zexabiso eliphantsi, ezikumgangatho wolwandle ezinemilinganiselo yokuqonda ephucukileyo kunciphisa iNkcitho yokuSebenza (i-Opex) ngokunciphisa ukuqaliswa kokugcinwa, ukulungiswa okungxamisekileyo, kunye nemingcipheko yoxanduva. Ukuqonda ukuba inethiwekhi yezithethi zephondo zangaphandle idla ngokuba lutyalo-mali lweziseko zesiseko lweminyaka eli-10 ukuya kweli-15 endaweni yempahla elahlwayo lukhuselo olupheleleyo kwiimpazamo zokukhetha ezibizayo.
Izinto ezibalulekileyo ekufuneka ziqwalaselwe
- Cacisa ukuba isithethi se-horn senzelwe ii-paging eziqhelekileyo, isandi sangasemva, okanye ii-alamu zelizwi ezingxamisekileyo ngaphambi kokuba uthelekise iimodeli okanye iziqinisekiso.
- Musa ukuthembela kumandla ombane kuphela; beka phambili uvakalelo, i-SPL ephezulu, i-impedance, i-dispersion, impendulo ye-frequency, kunye nokukhuselwa kwendalo.
- Bala i-SPL kumgama wokwenyani womphulaphuli kuba inqanaba lesandi sangaphandle lidla ngokwehla nge-6 dB ngalo lonke ixesha umgama uphindaphindwa kabini.
- Uyilo lokuqondakala kwentetho ngokuqinisekisa ukuba isandi esihanjiswayo sihlala siphakathi kwe-10 ukuya kwi-15 dB ngaphezu komgangatho wengxolo ongqongileyo.
- Khetha izixhobo ezimelana nemozulu, ezimelana nokugqwala, okanye ezimelana nokuqhuma xa ufakelo luchatshazelwe yimvula, uthuli, ityuwa, amaqondo obushushu aphezulu, okanye iigesi eziyingozi.
- Sebenzisa izithethi ezininzi ezibekwe kakuhle xa kuyimfuneko endaweni yokunyanzela isithethi esinye esikhulu ukuba sigubungele indawo yonke yangaphandle.
Imibuzo ebuzwa qho
Yeyiphi impazamo eqhelekileyo xa ukhetha isithethi se-horn sangaphandle?
Eyona mpazamo ixhaphakileyo kukukhetha ngokwe-wattage yodwa. Uvakalelo, i-SPL kumgama wabalaleli, i-engile yokugubungela, ingxolo ye-ambient, ukulinganiswa kwemozulu, kunye neziqinisekiso ezifunekayo zibaluleke kakhulu ekuqondeni nasekuqineni kwehlabathi lokwenyani.
Isithethi se-horn esingaphandle sifanele sikhwaze kangakanani ukuze intetho icace?
Kwimiyalezo eqondakalayo okanye engxamisekileyo, isandi esiphuma endlebeni yomphulaphuli kufuneka sibe yi-10 ukuya kwi-15 dB ngaphezulu kwenqanaba lengxolo engqongileyo. Igadi yemizi-mveliso engama-85 dBA inokufuna ubuncinci i-95 dBA kwindawo yokumamela.
Kutheni umgama wesithethi ubalulekile kuyilo lwe-PA yangaphandle?
Kwiimeko zangaphandle ezikhululekileyo, i-SPL yehla malunga ne-6 dB ngalo lonke ixesha umgama womphulaphuli uphindaphindwa kabini. I-horn elinganiswe kwi-110 dB kwi-1 meter inokufikelela kwi-86 dB kwiimitha ezili-16, ngaphambi kokuba kuqwalaselwe umoya, imiqobo, okanye imiba yokufakelwa.
Ngaba izithethi zee-horn zangaphandle zifanelekile kwiindawo zoshishino ezinobungozi?
Zingaba njalo, kodwa kuphela xa zichaziwe ngokwendalo esingqongileyo. Iindawo ezifana neoyile negesi, imigodi, ulwandle, okanye izixhobo zeekhemikhali zinokufuna izixhobo zonxibelelwano eziqinileyo, ezimelana nemozulu, okanye ezichasene nokuqhuma ezineziqinisekiso ezifanelekileyo ezifana ne-ATEX, CE, okanye i-FCC.
Ziziphi iinkcukacha endifanele ndizithelekise ngaphandle kovavanyo lwamandla?
Thelekisa uvakalelo, i-SPL ephezulu, ii-impedance okanye ii-transformer taps, impendulo yemvamisa yentetho, i-angle yokusasazeka, ukhuseleko lwe-IP/weather, ukumelana nokugqwala, ubushushu bokusebenza, izixhobo zokufakela, kunye nokuthobela nayiphi na imigangatho ye-PA okanye yokhuseleko lobomi.
Ixesha lokuthumela: Juni-20-2026