Isifundo ingxolo. Izixhobo kumlinganiselo ingxolo

Izandi abasingqongileyo - kuphela kwiimeko ezinqabileyo, umntu namhlanje ukutshonisa ngokupheleleyo wena cwaka. Kulo mba, ixabiso ummiselo kwandisa iparameters ingxolo. Emsebenzini, umzekelo, iimfuno ezizodwa kule nhlangano kweemeko zokusebenza. Uluhlu iimfuno ezinjalo ngokuqinisekileyo baya kuza neziphumo isandi egqibeleleyo. Noko ke, ufundisiso ingxolo kufuneka kwezinye iimeko - kwindawo yonyango, kwiindawo zoluntu kwaye, kakade, xa ekhaya. Ukulungiselela le njongo, izixhobo ezikhethekileyo - iimitha kwinqanaba ephilileyo. Kodwa ke ukuba uqale kukuba ukuqonda uhlobo umsindo.

omsindo

Uninzi umsindo eyenziwe imithombo anthropogenic lwabavelisi yesandi. Umzekelo, yeziThuthi, nomoya kucanda phakathi izakhiwo, ubunjineli kunye neenkqubo zobugcisa, njalo njalo. D. Njengoko umthetho, izizathu olu hlobo ingxolo zizinto ezimbi, ngenxa yokuba usoloko ezitsho phantsi, kwakunye utshintsho umbhodamo lwe-aksenti lonke kuluhlu. Oku kubonakala ngakumbi kumsebenzi kwamashishini mveliso, kunye nezixhobo zonxibelelwano.

Kakade ke, eyona intle, ngokwemiqathango umsindo, le meko iphawulwe ngaphandle komzi. Kulo mzekelo, umthombo isebenza imvelo ngokwayo. Enye kakhulu oludambisa kuthoba isandi elwandle, nto leyo esibonakala nezolo kunye intlokoma kakhulu. Isandi kade kwaye obungabangeli mdla idala isingqisho elikhethekileyo nomtsalane aselwandle komeleza inkqubo luvo.

isixhobo isixhobo

iimitha kwinqanaba esisengqiqweni kwimarike namhlanje namhlanje Izixhobo ethandwayo digital. Yokuba izindlu zeplastiki amancinci kwaye lizinzile, leyo intw lombhobho - nangona kunjalo, oku element inokuhlanganiswa kwifowuni. Esi sixhobo ikwaquka msindo, izinto filter, ukukhanya kunye tshin. Enyanisweni, indlebe kwabantu abaninzi iinxalenye efanayo ukusebenza. Ngenxa yoko, indlela ekhethekileyo kwenza isifundo ingxolo ne ukulungisa eziliqela iparameters ngaxeshanye. Amacebo okucoca uthwebula izandi ezitsho ezahlukeneyo, kunye nolwazi malunga imilinganiselo reflectivity lwenziwa izikrini ku decibels. Ngokubhekiselele isondlo, uninzi iimitha inqanaba isandi asebenza lamandla ebhetri, nesigxina apho ziyahluka ukusuka kwiiyure ezingama-50 ukuya kuma-70.

isimiso ukusebenza

Ngokubhekisele isimiso ukusebenza, kulo mzekelo, isixhobo efanelekileyo ngakumbi uthelekiso kunye lombhobho. Umahluko engundoqo iya kuba ukuba imitha inqanaba isandi lisabela ngexesha kumlinganiselo kunye voltmeter, a Lomsindo ukukala. Ekubeni yombane imveliso uphawu umlambo evela lombhobho elingana kwinqanaba lokuqala isandi additive kwi uxinzelelo yiacoustic, aye kwi uvalo luya kubangela ukwanda ombane efanayo ukwamkelwa kwi voltmeter. Kulo mgaqo wakha neSingqinisiso ingxolo, apho i parameters kubonakala kwidispleyi. Ukwenza imilinganiselo yentsebenzo xi yesandi signal kudlule okucoca ezizodwa - oku kusenziwa ngexesha xa usekhondweni ukusuka umbhobho ukuya voltmeter.

Ekubeni ubuchule indlebe ukuba ukuqonda isandi kuxhomekeke kuphela kwiipropati ingxolo kwamaza, kodwa ngogxininiso yayo, kwizixhobo ubonelela iintlobo ezininzi izinto lokuhluza. Isixhobo ethile kuxhomekeke koko iimpawu inxalenye engeyiyi yengxolo phezu imilinganiselo. Amacebo kwenza kube lula ukuba zilinganisa le spectrum awo-rhoqo kwi igunya ingxolo elinikiweyo.

iimpawu Technical-zokusebenza

Abavelisi lwela ku ezohlula imifuziselo ebalwe kuphela umthamo ledayimenshini, kunye nezixhobo imilinganiselo injongo jikelele. Noko ke, inqanaba umthamo ihlala enye yeempawu ezingundoqo kweemitha kwinqanaba phantse yonke ephilileyo - eli nani isusela ukusuka 30 ukuya 130 dB. Kubalulekile ukuba uqaphele omnye umsebenzi osemqoka iimitha ingxolo. Ezinye izikhokelo xa esebenza kwindawo apho ratio isandi idlula isikali iphezulu bar, musa ukuvelisa ukufunda ingxolo ngenxa iintsilelo izakhono zabo. Olona phawu elandelayo - ukuchaneka womlinganiselo. Olu phawu kumiselwa isiphoso, esenokuba ukusuka ku-1 ukuya kwisi-1.5 dB. Ngako oko, le ezincinci ecaleni kwi olinganise kwinqanaba imitha isandi, kungona nokuchaneka. ukusebenza kwaso kuchaphazeleka obushushu. Umzekelo, ukuba ukhankanye uluhlu ukusuka ku-0 ukuya kuma-40 ° C, ifowuni ingasetyenziswa kwiindawo ezivulekileyo.

abenzi

Emarikeni uyakwazi ukufumana ifowuni zombini kubenzi ezizodwa kwezinto zokusebenza kunye nemveliso umlinganiselo ukusuka brand ezaziwayo-kakuhle ezingenamandla ze wokwakha. Udidi lokuqala wenziwa imodeli Testo, ngubani na kubizwa ngokuba ngcono eklasini. Zingasebenza ebanzi uluhlu kwamaza, iibhetri capacious kwaye uluhlu lomlinganiselo decibels. Noko ke, izixhobo zalo brand eqolo - umlinganiselo engange-20 ukuya kwi-30 amawaka .. Ukuba uceba ukufunda ingxolo kwindawo zokuhlala, kuyenzeka ukuba banikele ingqalelo imveliso Geo-fennel kunye ADA. Okokuqala, imifuziselo zezi abavelisi ukunika imilinganiselo elungileyo ngqo, kwaye okwesibini, ukuba ziyafumaneka ngexabiso - umlinganiselo izixhobo ezinjalo 3-4 amawaka engange ..

Izimvo Sound Level Meter

Amalungu qaphela ukuba lula kokusebenzisa digital iimitha kwinqanaba ephilileyo. abavelisi abaninzi ukunika izixhobo kunye izikrini zokusebenza kwaye ulwazi okwenza intuthuzelo ngexesha lomsebenzi. Ububi bokusebenzisa izixhobo ezininzi kule hlobo ziquka abanini zexesha elifutshane zomsebenzi itshaja kunye iimpazamo ezinzulu. Nangona kunjalo, lo ezincinane lokugqibela ubukhulu becala kuxhomekeke kuhlobo imithombo yengxolo zaxilongwa. Ukongeza umsebenzi ngqo kucetyiswa ukuba ahlawule ingqalelo nokukwazi ukuba idivaysi isebenze kwiindawo ngqwabalala. Ubukho ukumelana noxinzelelo koomatshini nomzimba ukufuma zibonwa ngokucacileyo uzijonga njengento eluncedo.

isiphelo

Nokuba ukusetyenziswa developers ubugcisa bale mihla zobuchwepheshe zokulinganisela ukuyilungisa, asizizo zonke iingxaki ezinxulumene ne kwenkcazo yokusebenza yesandi. Noko ke, ukuze abasebenzisi abaninzi, ziphakamiso esele ikhona ngokwaneleyo. Umzekelo, isandi ulwandle ibonelela oscillation frequency ukusuka kumyinge ka-31 ukuya 20,000 Hz. Ukuba bahlanganise le uluhlu namhlanje, kuya kuba nzima ukufumana isixhobo se icandelo ephakathi. Enye into kukuba ukuze imisebenzi yobungcali ezizodwa kakhulu angafuna izixhobo hayi kuphela uluhlu elide i parameters inqununu yokusebenza, kodwa kwakhona bakwazi ukwenza imisebenzi yomlinganiselo eyongezelelweyo.