Yuav Ua Li Cas Xaiv Lub Tshuab Hais Lus Lag Luam Zoo Rau Qhov Chaw Nyob Nyuaj

Vim Li Cas Tus Neeg Hais Lus Lag Luam Zoo Thiaj Tseem Ceeb

Hauv cov chaw ua haujlwm hauv kev lag luam, qhov chaw suab tsis tshua muaj neeg xav txog tom qab; nws yog qhov tseem ceeb rau kev ua haujlwm. Cov tshuab hnyav, cov kab ua haujlwm siab, thiab cov khoom siv tuav cov khoom tsim cov suab nrov tas mus li uas ua rau muaj kev sib tw nrog cov tes hauj lwm sib txuas lus yooj yim. Kev siv lub tshuab hais lus hauv kev lag luam hauv cov chaw ib puag ncig nyuaj no xav tau ntau dua li tsuas yog ua kom lub suab nrov dua xwb - nws xav tau kev sib haum xeeb ntawm kev tsim kho suab, kev ruaj khov ntawm cov khoom siv, thiab kev ua raws li kev nyab xeeb rau lub neej.

Thaum cov pab pawg neeg yuav khoom thiab cov kws tsim khoom tsis tau teev cov khoom siv hais lus rau pej xeem thiab cov khoom siv ceeb toom dav dav (PA/GA), qhov ua tsis tiav ntawm qhov tsis zoo ntawm lub suab. Kev ua haujlwm tsis zoo tshwm sim thaum cov lus qhia tsis tuaj yeem hnov ​​​​​​dua suab nrov ib puag ncig, thiab cov txiaj ntsig phem yuav tshwm sim thaum cov teeb liab ceeb toom thaum muaj xwm txheej ceev tsis ua haujlwm thaum muaj xwm txheej tseem ceeb. Kev xaiv qhov yogtus neeg hais lus hauv kev lag luam ua kom ntseeg tautias kev sib txuas lus tseem ceeb rau lub hom phiaj nkag mus rau hauv cov chaw muaj suab nrov siab, ua kom ruaj khov, thiab ua raws li txoj cai nruj.

Kev Pheej Hmoo Ua Lag Luam ntawm Cov Neeg Hais Lus Tsis Tau Qhia Txwm

Kev siv cov khoom siv suab qib lag luam hauv cov chaw lag luam ua rau muaj kev phom sij loj heev rau kev lag luam. Qhov kev pheej hmoo tam sim ntawd tshaj plaws yog qhov poob ntawm kev nkag siab. Hauv qhov chaw uas suab nrov ib puag ncig tas li tshaj 85 dB (A), lub tshuab hais lus uas tsis muaj qib suab siab (SPL) lossis kev teb zaus tsim nyog yuav ua rau cov lus txib suab tsis nkag siab, ua rau muaj kev ua yuam kev hauv kev tsim khoom, kev cuam tshuam kev ua haujlwm, thiab kev puas tsuaj rau cov khoom siv kim vim kev sib txuas lus tsis raug.

Tsis tas li ntawd xwb, cov neeg hais lus tsis tau teev tseg ua rau cov koom haum muaj kev pheej hmoo loj heev ntawm kev cai lij choj thiab kev lav phib xaub. Cov koom haum kev nyab xeeb hauv kev ua haujlwm yuam kom muaj cov tshuab ceeb toom meej thiab tsis meej. Piv txwv li, kev tsis muab cov tshuab ceeb toom hnov ​​​​​​lus zoo tuaj yeem ua rau muaj kev nplua hnyav, nrog rau cov koom haum tswj hwm xws li OSHA sau cov nyiaj nplua uas tuaj yeem tshaj $ 15,625 rau txhua qhov kev ua txhaum rau kev nyab xeeb hnyav. Yog tias muaj xwm txheej loj heev hauv kev lag luam, qhov tsis muaj peev xwm ua pov thawj tias lub kaw lus ceeb toom xwm txheej ceev tau ua tiav cov suab nrov uas xav tau tuaj yeem ua rau muaj kev lav phib xaub loj heev rau lub tuam txhab ua haujlwm.

Tus Nqi Siv Tau Hauv Lub Neej, Lub Sijhawm Ua Haujlwm, thiab Kev Cuam Tshuam Rau Kev Nyab Xeeb

Tus nqi tiag tiag ntawm lub tshuab hais lus hauv kev lag luam tsis yog suav nrog nws cov peev txheej pib (CAPEX), tab sis suav nrog nws cov nqi tag nrho thiab qhov cuam tshuam rau lub sijhawm ua haujlwm ntawm lub chaw.cov xwm txheej kev lag luam hnyav—xws li qhov kub thiab txias hloov pauv ntau heev, cov khoom me me nkag mus, lossis cov huab cua corrosive—yuav lwj sai sai. Ib lub tshuab hais lus lag luam tus qauv yuav ua rau pom lub sijhawm nruab nrab ntawm kev ua tsis tiav (MTBF) ntawm 5,000 txog 10,000 teev hauv ib puag ncig zoo, tab sis qhov no poob qis heev hauv lub Hoobkas tshuaj lossis lub chaw tsim khoom.

Ntawm qhov tod tes, lub tshuab hais lus hauv kev lag luam uas tsim tshwj xeeb yog tsim los rau lub neej ntev, feem ntau muaj MTBF tshaj 50,000 teev txawm tias muaj kev nyuaj siab tas li. Txawm hais tias tus nqi them ua ntej ntawm ib chav tsev lag luam yuav siab dua peb mus rau tsib npaug ntawm lwm txoj hauv kev lag luam, kev txuag nyiaj hauv kev ua haujlwm txij nkawm, cov khoom hloov pauv, thiab kev zam lub sijhawm tsis ua haujlwm ua rau tus nqi tag nrho ntawm kev muaj (TCO) qis dua 10 xyoo ntawm kev ua haujlwm. Qhov tseem ceeb tshaj plaws, lub sijhawm ua haujlwm tau lees paub ntawm lub tshuab hais lus ruaj khov ua kom ntseeg tau tias cov txheej txheem kev nyab xeeb ntawm lub neej tseem ua haujlwm, tiv thaiv cov neeg ua haujlwm ncaj qha thiab txo qis kev pheej hmoo ntawm kev kaw thoob plaws qhov chaw.

Dab Tsi Txhais Tau Ib Lub Tshuab Hais Lus Muaj Zog

Kev txhais lub tshuab hais lus rau kev lag luam yuav tsum tau saib ntau dua li qhov yooj yim wattage thiab zaus teb. Lub tshuab hais lus tiag tiag-nyob rau hauv ib puag ncig hnyav raug faib ua pawg los ntawm nws qhov kev ua neej nyob hauv cov xwm txheej hnyav thiab nws lub peev xwm los tso suab meej los ntawm cov huab cua nyuaj, suab nrov siab. Cov khoom siv no tau tsim los ua haujlwm ntawm qhov kev sib tshuam ntawm cov khoom siv ruggedized thiab cov suab nrov tshwj xeeb.

Yuav kom ntsuam xyuas tau lub tshuab hais lus hauv kev lag luam kom zoo, cov neeg koom ua ke yuav tsum ntsuam xyuas cov teeb meem ib puag ncig ntawm qhov chaw teeb tsa thiab phim lawv nrog cov lus qhia tiv thaiv thiab suab ntawm lub cuab yeej. Qhov no ua kom lub tshuab hais lus tsis yog tsuas yog muaj sia nyob hauv ib puag ncig xwb tab sis kuj tseem yuav ua nws txoj haujlwm tseem ceeb: xa cov suab uas nkag siab tau zoo heev.

Kev Lag Luam vs. Kev Lag Luam Suab Systems

Qhov sib txawv ntawm cov tshuab suab hauv kev lag luam thiab kev lag luam feem ntau yog nyob rau hauv lawv cov ntaub ntawv tsim kho thiab kev kam rau siab kub. Cov neeg hais lus lag luam feem ntau siv cov yas ABS, cov ntawv cones, thiab cov khoom tiv thaiv huab cua yooj yim uas tsim nyog rau cov khw muag khoom lossis chaw ua haujlwm uas tswj tau huab cua. Thaum raug rau hluav taws xob UV, cov pa tshuaj lom neeg, lossis qhov kub thiab txias heev, cov ntaub ntawv no yuav nkhaus, lwj, thiab thaum kawg ua tsis tau zoo.

Cov neeg hais lus hauv kev lag luam yog tsim los ntawm cov polycarbonates uas muaj zog heev, UV-stabilized, marine-grade aluminium, lossis 316L stainless hlau. Lawv cov khoom sab hauv muaj cov phenolic lossis titanium diaphragms uas kho tau uas tiv taus cov dej noo thiab cov tshuaj lom neeg puas tsuaj. Thermal, lub neeg hais lus hauv kev lag luam yog tsim los ua haujlwm hauv qhov kub thiab txias dav dua, feem ntau yog txij li -40 ° C txog +70 ° C, ua kom muaj kev ua haujlwm hauv ob qho chaw txias sab nraum zoov thiab chav boiler kub.

Cov Xwm Txheej Ib puag ncig Tseem Ceeb uas Yuav Tsum Tau Soj Ntsuam

Ua ntej xaiv lub tshuab hais lus, yuav tsum tau kuaj xyuas ib puag ncig ntawm thaj chaw teeb tsa. Cov teeb meem tseem ceeb suav nrog cov khoom me me hauv huab cua (hmoov av, cov hlau txiav), dej noo (dej noo ntau, nag ncaj qha, kev ntxuav siab), thiab kev raug tshuaj lom neeg (cov pa roj corrosive, tshuaj tsuag ntsev hauv cov ntawv thov hauv hiav txwv).

Kev co thiab kev poob siab kuj yog cov yam tseem ceeb, tshwj xeeb tshaj yog hauv kev tsim khoom hnyav lossis ze rau cov tshuab loj uas tig. Cov neeg hais lus hauv cov cheeb tsam no yuav tsum ua raws li cov qauv kev ua haujlwm zoo, xws li MIL-STD-810G, kom ntseeg tau tias kev co qis qis tas mus li tsis ua rau lub suab sab hauv lossis cov brackets xoob. Kev soj ntsuam cov xwm txheej no qhia txog kev tiv thaiv ingress thiab cov ntaub ntawv kaw uas xav tau los tiv thaiv kev ua tsis tiav ua ntej.

SPL, Kev Txawj Ntse, thiab Kev Tawm Suab

Kev ua tau zoo ntawm lub suab hauv qhov chaw nyuaj yog txhais los ntawm peb qhov ntsuas: Qib Siab Suab (SPL), kev nkag siab, thiab kev sib kis suab. Txhawm rau kov yeej lub suab nrov hauv kev lag luam, lub tshuab hais lus yuav tsum tsim SPL tsawg kawg +10 dB txog +15 dB siab dua qib suab nrov tas mus li ntawm qhov chaw mloog. Piv txwv li, yog tias chav compressor ua haujlwm ntawm 90 dB (A), lub tshuab hais lus yuav tsum xa 100-105 dB (A) ntawm qhov chaw ua haujlwm.

Txawm li cas los xij, qhov ntim ntawm lub suab tsis txaus yog tsis muaj kev nkag siab, ntsuas los ntawm Speech Transmission Index (STI). Feem ntau yuav tsum muaj qhov qhab nia STI siab dua 0.50 rau kev nkag siab lub suab meej. Kev ua tiav qhov no yuav tsum muaj cov neeg hais lus uas muaj qhov teb zaus zoo rau tib neeg hais lus (feem ntau yog 300 Hz txog 4,000 Hz) thiab lub kaum sab xis tswj tau. Cov suab nrov me me (piv txwv li, 60 txog 70 degrees) siv los ntaus suab nrov dhau qhov deb tsis tsim kev cuam tshuam ntau dhau, thaum cov txee suab nrov dav (txog li 120 degrees) zoo dua rau kev npog dav dua hauv thaj chaw sib dhos uas muaj suab nrov tsawg dua.

Cov Lus Qhia Txog Kev Ruaj Ntseg thiab Kev Tiv Thaiv

Qhov kev ua tau zoo ntawm lub tshuab hais lus hauv kev lag luam raug ntsuas los ntawm cov txheej txheem ntsuas thoob ntiaj teb. Cov lus qhia no muab cov qauv txhim khu kev qha rau kev sib phim cov khoom siv kho vajtse rau qhov hnyav ntawm ib puag ncig, kom ntseeg tau tias cov khoom siv hluav taws xob sab hauv tseem nyob ib leeg ntawm cov zog sab nraud.

Kev nkag siab txog yuav ua li cas txhais thiab siv cov lus qhia tiv thaiv no - txij li kev tiv thaiv dej yooj yim mus rau cov ntawv pov thawj tiv thaiv kev tawg - yog lub hauv paus tseem ceeb ntawm kev teev cov txheej txheem PA / GA kev lag luam txhim khu kev qha.

Kev Ntsuas IP, Hom NEMA, thiab Kev Tiv Thaiv Kev Sib Tsoo

Cov qib kev tiv thaiv dej nkag (IP) thiab hom National Electrical Manufacturers Association (NEMA) yog cov cim qhia tseem ceeb ntawm lub tshuab hais lus ruaj khov. Lub kaw lus qib IP siv ob tus lej: thawj tus qhia txog kev tiv thaiv cov khoom khov (hmoov av), thiab tus thib ob tiv thaiv cov kua (dej). Rau cov chaw ua haujlwm hnyav, IP66 (kev tiv thaiv dej hiav txwv hnyav lossis dej loj) lossis IP67 (kev tiv thaiv dej nkag ib ntus) yog cov qauv txheem.

Hauv North America, NEMA ratings feem ntau siv nrog rau IP ratings, muab cov ntsiab lus ntxiv txog kev tiv thaiv xeb. Piv txwv li, NEMA 4X rating tsis yog tsuas yog lav kev tiv thaiv plua plav thiab dej uas cua tshuab xwb tab sis kuj lees paub tias tiv thaiv xeb. Kev ua tiav qhov no feem ntau xav tau lub tsev hais lus thiab cov brackets mounting kom ua los ntawm 316L stainless hlau lossis cov iav tshwj xeeb-reinforced polyesters (GRP).

Thaum Twg Yuav Tsum Tau Siv Cov Lus Qhia Uas Tiv Thaiv Tau Kev Tawg

Hauv cov chaw uas muaj cov pa roj av, cov pa dej, lossis cov hmoov av uas yooj yim hlawv—xws li cov chaw ua roj av petrochemical, cov chaw nqa cov nplej, lossis cov chaw tsim xim—cov tshuab hais lus hauv kev lag luam txheem ua rau muaj kev pheej hmoo hluav taws. Hauv cov chaw txaus ntshai no, cov tshuab hais lus uas tsis tawg lossis muaj kev nyab xeeb yog qhov raug cai. Cov khoom siv no raug tswj hwm los ntawm cov qauv xws li ATEX thiab IECEx hauv Tebchaws Europe, thiab National Electrical Code (NEC) Class/Division system hauv North America.

An lub tshuab hais lus uas tsis tawg(piv txwv li, ntsuas rau ATEX Zone 1 lossis Class I, Division 1) muaj lub qhov rooj tiv thaiv hluav taws (Ex d). Qhov kev tsim no ua kom ntseeg tau tias yog tias muaj qhov hluav taws xob sab hauv ua rau muaj hluav taws xob uas ua rau cov pa roj hauv lub tsev hais lus kub hnyiab, lub qhov rooj yuav muaj qhov tawg thiab txias cov pa roj tawm hauv qab qhov kub ntawm lub qhov rooj ib puag ncig. Kev qhia meej cov chav no yuav tsum tau sib phim qhov tseeb ntawm daim ntawv pov thawj ntawm lub tsev hais lus rau pawg roj tseeb (piv txwv li, IIB, IIC) thiab chav kawm kub (piv txwv li, T4, T6) ntawm qhov chaw.

Kev Sib Piv ntawm Horn, Cabinet, thiab Paging Speakers

Feem ntau cov neeg hais lus hauv kev lag luam muaj peb hom: cov neeg hais lus horn, cov neeg hais lus hauv txee, thiab cov projectors paging tshwj xeeb. Cov neeg hais lus horn yog tus qauv rau cov chaw muaj suab nrov heev. Siv lub tshuab tsav compression nrog lub horn flared, lawv ua haujlwm tau zoo heev, feem ntau muaj peev xwm tsim SPLs tshaj 120 dB ntawm 1 'meter'. Lawv qhov kev taw qhia ua rau lawv zoo tagnrho rau kev nkag mus rau hauv lub suab nrov siab ntawm qhov deb ntev, txawm hais tias lawv cov lus teb zaus yog skewed heev rau nruab nrab thiab siab zaus, ua rau lawv tsis zoo rau cov suab paj nruag keeb kwm yav dhau.

Cov neeg hais lus hauv txee thiab projector raug siv thaum xav tau qhov teb zaus dav dua thiab qhov tseeb ntawm lub suab siab dua, xws li hauv chav tswj lossis hauv pem teb tsim suab qis dua. Txawm hais tias lawv muab STI zoo dua rau cov lus hais lus nyuaj, lawv feem ntau siab tshaj plaws ntawm SPLs qis dua (90 txog 105 dB ntawm 1 'meter') thiab xav tau lub zog amplifier ntau dua kom ua tiav thaj chaw npog zoo ib yam li lub horn. Kev xaiv ntawm cov hom no suav nrog kev sib npaug ntawm qhov xav tau rau kev nkag mus rau hauv lub suab raw tawm tsam qhov xav tau rau lub suab tseeb.

Kev Koom Ua Ke, Kev Ua Raws Cai, thiab Cov Yam Ntxim Saib Xyuas Tus Nqi

Kev nrhiav tau lub tshuab hais lus rau kev lag luam tsuas yog ib feem ntawm qhov kev sib npaug xwb; kev koom ua ke nws rau hauv lub network sib txuas lus thoob plaws qhov chaw ua rau muaj kev hloov pauv hluav taws xob, kev cai lij choj, thiab kev nyiaj txiag nyuaj. Lub tshuab hais lus yuav tsum sib txuas lus zoo nrog cov khoom siv amplification uas twb muaj lawm thaum ua raws li cov cai kev nyab xeeb hauv cheeb tsam.

Kev ntsuam xyuas cov kev xav tau kev koom ua ke ua ntej tiv thaiv kev tsim kho dua tshiab kim heev thaum lub sijhawm teeb tsa thiab xyuas kom meej tias lub kaw lus xa tawm ua haujlwm tau zoo thoob plaws nws lub neej npaj tseg.

Kev Sib Txuas Lus ntawm Voltage, Impedance, thiab Amplifier

Cov tshuab PA/GA hauv kev lag luam feem ntau siv cov kab suab faib tawm uas muaj hluav taws xob ntau—feem ntau yog 70V hauv North America thiab 100V thoob ntiaj teb—es tsis yog cov tshuab 8-ohm uas muaj impedance tsawg uas pom muaj nyob rau hauv cov khoom siv suab. Txoj kev siv hluav taws xob ntau no txo ​​qhov kev poob hluav taws xob ntawm cov xov hlau ntev uas xav tau hauv cov chaw lag luam loj, uas tso cai rau ntau lub tshuab hais lus kom txuas nrog daisy-chained ntawm ib txoj kab amplifier.

Txhawm rau sib txuas nrog cov kab ke no, cov neeg hais lus hauv kev lag luam tau nruab nrog cov hloov pauv sab hauv. Cov hloov pauv no muaj ntau lub zog "taps" (piv txwv li, 1W, 2W, 4W, 8W, 15W, 30W), uas tso cai rau cov neeg teeb tsa kho qhov rub hluav taws xob thiab SPL ntawm txhua tus neeg hais lus raws li nws qhov chaw tshwj xeeb. Kev suav cov transformer taps kom raug yog qhov tseem ceeb; tag nrho cov wattage ntawm txhua tus neeg hais lus tapped ntawm ib kab yuav tsum tsis pub tshaj 80% ntawm lub amplifier lub peev xwm tso zis kom tiv thaiv transformer saturation thiab amplifier tsis ua haujlwm.

Cov Ntawv Pov Thawj thiab Cov Qauv Hauv Cheeb Tsam

Kev ua raws li cov qauv hauv cheeb tsam thiab cov qauv siv rau kev siv tsis yog qhov yuav tsum tau sib tham rau cov tshuab suab hauv kev lag luam, tshwj xeeb tshaj yog thaum lawv ua ob qho tib si ua cov tes hauj lwm khiav tawm thaum muaj xwm txheej ceev. Hauv North America, cov neeg hais lus siv rau cov tswb hluav taws thiab cov teeb liab thaum muaj xwm txheej ceev yuav tsum tau ntawv pov thawj rau UL 1480 (Fire Protective Signaling Systems). Hauv Tebchaws Europe, tus qauv sib npaug yog EN 54-24, uas hais txog cov qauv kev ua tau zoo nruj rau cov neeg hais lus ceeb toom suab.

Ntxiv mus, cov neeg hais lus uas tau xa mus rau hauv cov chaw tshwj xeeb yuav tsum ua tau raws li cov ntawv pov thawj tshwj xeeb. Cov neeg hais lus hauv dej hiav txwv thiab sab nraud feem ntau xav tau kev pom zoo los ntawm cov koom haum faib tawm xws li DNV lossis ABS. Kev ua raws li cov lus qhia ib puag ncig, xws liRoHS thiab REACH, kuj tseem ceeb rau kev yuav khoom thoob ntiaj teb. Kev txheeb xyuas cov ntawv pov thawj no thaum lub sijhawm xaiv ua kom ntseeg tau tias kev teeb tsa yuav dhau qhov kev tshuaj xyuas kev nyab xeeb zaum kawg thiab kev tshuaj xyuas los ntawm cov tub ceev xwm hauv zos uas muaj cai (AHJ).

Kev Teeb tsa thiab Tag Nrho Tus Nqi ntawm Kev Muaj Tswv

Qhov kev teeb tsa lub cev ntawm cov neeg hais lus hauv kev lag luam muaj feem cuam tshuam loj heev rau Tag Nrho Tus Nqi ntawm Kev Muaj (TCO). Cov neeg hais lus hnyav uas tiv taus kev tawg tuaj yeem hnyav ntawm 5 kg thiab 15 kg, xav tau cov brackets ruaj khov, tiv taus kev co - feem ntau yog cov brackets stainless hlau uas tig tau uas tso cai rau kev taw qhia suab meej. Tus nqi ntawm kev khiav cov cabling tshwj xeeb lossis cov cabling tiv taus hluav taws rau cov chav no feem ntau tuaj yeem tshaj tus nqi ntawm cov neeg hais lus lawv tus kheej.

Thaum xam TCO, cov pab pawg yuav khoom yuav tsum saib dhau tus nqi pib ntawm ib chav, uas feem ntau yog txij li $ 300 txog $ 800 rau cov tshuab raj ua haujlwm ib txwm muaj, thiab txog li $ 2,000 rau cov khoom siv tshwj xeeb uas tau ntawv pov thawj ATEX. Lub tshuab hais lus pheej yig dua thiab tsis ruaj khov yuav raug nqi ntau rau kev hloov pauv ntau dua, kev xauj scaffolding, thiab kev tsim khoom yuav raug nres. Kev nqis peev rau hauv ib chav uas ruaj khov heev, tau ntawv pov thawj tsim nyog yuav txo qis kev kho, ua rau TCO qis dua thiab muab kev pov hwm kev nyab xeeb txhim khu kev qha txhua xyoo.

Kev Xaiv Tus Neeg Hais Lus Hauv Kev Lag Luam

Kev xaiv lub tshuab hais lus zoo tshaj plaws rau kev lag luam yuav tsum muaj txoj hauv kev uas txuas kev tshawb fawb txog suab nrog kev tsim kho vaj tse. Kev cia siab rau kev kwv yees lossis kev theej cov lus qhia qub feem ntau ua rau cov kab ke uas tsis muaj zog txaus ntshai lossis kim heev.

Los ntawm kev siv cov txheej txheem xaiv uas muaj cov qauv, cov thawj coj ntawm cov chaw, cov kws ua haujlwm suab, thiab cov neeg ua haujlwm yuav khoom tuaj yeem xaiv cov khoom siv uas ua tau raws li cov kev cai ua haujlwm thiab kev nyab xeeb.

Cov Kauj Ruam Xaiv Cov Kauj Ruam

Cov txheej txheem xaiv yuav tsum pib nrog kev soj ntsuam suab nrov ntawm qhov chaw. Cov kws ua vaj tse yuav tsum kos duab cov suab nrov ib puag ncig hauv dB (A) hla ntau thaj chaw ua haujlwm thaum lub sijhawm tsim khoom siab tshaj plaws. Tom qab kev soj ntsuam suab nrov, kev tshuaj xyuas ib puag ncig raug ua los txheeb xyuas qhov muaj dej noo, hmoov av, kub heev, thiab cov pa tawg. Qhov no txhais tau tias qhov tsim nyog IP, NEMA, thiab ATEX / Qhov Chaw Phom Sij.

Tom ntej no, yuav tsum tau soj ntsuam cov qauv ntawm lub kaw lus. Cov neeg hais lus xaiv yuav tsum phim cov khoom siv amplifier ntawm lub chaw (piv txwv li, kev sib raug zoo ntawm kab 70V/100V) thiab tag nrho cov peev nyiaj fais fab. Thaum kawg, kev tshuaj xyuas cov kev cai hauv zos qhia txog cov ntawv pov thawj tshwj xeeb txog kev nyab xeeb ntawm lub neej (xws li UL 1480 lossis EN 54-24) uas cov khoom siv yuav tsum nqa. Kev ua raws li plaub kauj ruam no ua kom muaj kev lag luam zoo thiab ua raws li txoj cai.

Kev Sib Npaug ntawm Kev Ua Haujlwm Acoustic thiab Kev Ruaj Khov

Ib qho teeb meem uas tseem muaj nyob hauv kev tsim cov suab hauv kev lag luam yog kev sib npaug ntawm kev ua tau zoo ntawm lub suab thiab kev ruaj khov ntawm lub cev. Cov khoom siv ruaj khov heev, xws li cov txhuas tuab lossis cov thawv uas tiv thaiv tau kev tawg, zoo heev rau kev tiv thaiv cov khoom sab hauv tab sis tuaj yeem txo qhov kev cuam tshuam ntawm lub suab thiab txwv qhov kev teb zaus. Qhov no tuaj yeem ua rau lub suab ntuj ntawm lub suab poob qis me ntsis piv rau cov txee nyias dua, qib lag luam.

Yuav kom txo qhov no, cov neeg tsim qauv yuav tsum muab qhov tseem ceeb rau kev nkag siab dua li kev suab paj nruag zoo. Los ntawm kev xaiv cov neeg hais lus nrog cov kab zauv zaus uas haum rau tib neeg lub suab (ua kom pom tseeb ntawm 1 kHz txog 4 kHz band), lub kaw lus tuaj yeem ua tiav qhov Speech Transmission Index (STI) siab txawm tias muaj qhov hnyav thiab ruaj khov. Ntxiv mus, kev siv ntau lub tshuab hais lus qis dua uas faib thoob plaws hauv qhov chaw feem ntau ua rau muaj kev nkag siab zoo dua thiab kev npog ntau dua li kev cia siab rau ib lub suab nrov loj heev uas tsim cov suab nrov thiab suab rov qab.

Daim Ntawv Teev Cov Lus Qhia Kawg

Ua ntej ua tiav daim ntawv xaj yuav khoom, cov pab pawg engineering thiab cov neeg yuav khoom yuav tsum sib piv lawv cov khoom siv kho vajtse xaiv nrog rau daim ntawv teev cov lus qhia kawg. Ua ntej, xyuas kom meej tias lub suab tso zis: puas yog lub suab nrov ntawm lub tshuab hais lus ntawm lub zog uas tau nias muab qhov xav tau +15 dB hla ​​lub suab nrov siab tshaj plaws ntawm qhov deb ntawm tus mloog? Xyuas kom meej tias lub kaum sab xis ntawm lub suab sib phim nrog qhov chaw teeb tsa ntawm thaj chaw kom txo qis lub zog suab pov tseg.

Qhov thib ob, xyuas kom meej cov qauv ntawm lub cev thiab cov cai. Xyuas kom tseeb tias qhov ntsuas IP sib phim nrog qhov teeb meem phem tshaj plaws ntawm ib puag ncig, xws li kev ntxuav siab uas xav tau IP66. Xyuas kom meej tias daim ntawv pov thawj thaj chaw txaus ntshai phim qhov kev faib tawm Cheeb Tsam lossis Kev faib tawm ntawm qhov chaw teeb tsa. Thaum kawg, xyuas kom meej tias cov khoom siv teeb tsa tau ntsuas rau qhov hnyav ntawm tus neeg hais lus (feem ntau yog 5kg txog 15kg rau cov chaw ua haujlwm hnyav) thiab qhov profile ntawm qhov chaw. Kev ua tiav daim ntawv teev npe no lav qhov kev xa tawm ntawm lub kaw lus suab lag luam uas muaj zog, ua haujlwm tau zoo, thiab ua raws li txoj cai.

Cov Ntsiab Lus Tseem Ceeb

• Qhia cov neeg hais lus hauv kev lag luam los ntawm qib suab nrov ib puag ncig, SPL xav tau, qhov deb ntawm kev pab them nqi, thiab kev nkag siab lub suab es tsis yog wattage ib leeg xwb.
• Tsis txhob siv cov tshuab hais lus qib lag luam hauv cov chaw ua haujlwm hnyav vim tias hmoov av, dej noo, xeb, kev co, thiab qhov kub thiab txias hloov pauv tuaj yeem ua rau puas sai.
• Rau cov chaw muaj kev phom sij xws li roj thiab roj av, kev khawb av, lossis kev ua cov tshuaj lom neeg, xyuas kom meej cov ntawv pov thawj tiv thaiv kev tawg xws li ATEX ua ntej yuav khoom.
• Xav txog tus nqi ntawm lub neej vim tias cov neeg hais lus hauv kev lag luam uas ruaj khov tuaj yeem txo qhov kev hloov pauv, kev saib xyuas, lub sijhawm tsis ua haujlwm, thiab kev ua tsis tiav ntawm lub kaw lus kev nyab xeeb hauv 10 xyoo kev ua haujlwm.
• Txuas cov neeg hais lus nrog PA/GA, paging, VoIP, intercom, thiab cov tshuab hu xov tooj thaum muaj xwm txheej ceev kom ntseeg tau tias cov tswb ceeb toom thiab cov lus qhia mus txog cov neeg ua haujlwm tau zoo.

Cov Lus Nug Feem Ntau

Dab tsi ua rau lub tshuab hais lus industrial tsim nyog rau cov chaw ib puag ncig hnyav?

Ib lub tshuab hais lus hauv kev lag luam uas tsim nyog muaj cov suab nrov siab, cov ntaub ntawv ruaj khov, tiv taus xeb, tiv thaiv kev nkag mus, tiv taus qhov kub thiab txias, thiab lub suab meej. Hauv thaj chaw muaj kev phom sij, nws yuav tsum ua tau raws li cov ntawv pov thawj xws li ATEX lossis lwm cov qauv kev nyab xeeb.

Lub tshuab hais lus hauv kev lag luam yuav tsum nrov npaum li cas hauv qhov chaw muaj suab nrov?

Tus neeg hais lus yuav tsum nrov txaus kom kov yeej lub suab nrov ib puag ncig thaum tseem khaws cia qhov kev nkag siab. Hauv thaj chaw siab dua 85 dB (A), cov pab pawg yuav tsum xam qhov xav tau SPL ntawm qhov deb ntawm tus mloog thiab xav txog qhov chaw tso tus neeg hais lus, lub kaum sab xis npog, thiab kev tsim qauv PA / GA.

Vim li cas ho tsis siv cov neeg hais lus lag luam hauv cov chaw lag luam?

Cov tshuab hais lus lag luam tsis yog tsim los rau cov plua plav, cov dej noo, kev co, kev xeb, qhov kub thiab txias heev, lossis huab cua tawg. Lawv yuav ua haujlwm sai dua, txo qhov meej ntawm cov lus thaum muaj xwm txheej ceev, ua rau cov nqi kho, thiab tsim kev pheej hmoo lossis kev lav phib xaub.

Puas xav tau cov tshuab tso suab uas tsis tawg rau cov chaw siv roj, roj av, lossis cov chaw khawb av?

Tej zaum yuav xav tau cov no thaum muaj cov pa roj, cov pa dej, lossis cov hmoov av uas yooj yim hlawv. Cov chaw ua haujlwm yuav tsum ua raws li cov kev cai ntawm kev faib tawm thaj chaw muaj kev phom sij thiab xaiv cov khoom siv uas tau ntawv pov thawj, xws li cov khoom siv sib txuas lus uas tau ntsuas los ntawm ATEX, yog tias siv tau.

Kev xaiv cov neeg hais lus cuam tshuam li cas rau tag nrho cov nqi ntawm kev muaj?

Ib lub tshuab hais lus hauv kev lag luam uas ruaj khov yuav kim dua thaum xub thawj, tab sis nws tuaj yeem txo qhov kev hloov pauv, kev ua haujlwm txij nkawm, lub sijhawm tsis ua haujlwm, thiab kev sib txuas lus thaum muaj xwm txheej ceev. Cov khoom siv uas tsim tshwj xeeb tuaj yeem muab lub neej ua haujlwm ntev dua li lwm cov khoom lag luam hauv cov xwm txheej nyuaj.