Lub sijhawm zoo siv rab koob ya raws ntsuas thiab ntsuas ntsuas dej tsis muaj koob
Feem ntau, nws yuav tsum tau kuaj cov dej noo (% MC) ntawm qee yam khoom. Thiab, thaum nws los txog rau kev ntsuam xyuas ncaj qha cov dej noo ntawm cov khoom, muaj ob txoj kev xaiv tseem ceeb - tus pin-hom ya raws ntsuas thiab pinless noo noo ntsuas yog lub sijhawm zoo los siv tus pin-hom noo noo ntsuas nrog Fig. 1 Minute meters thiab pinless ya raws. meters.
Pin Moisture Meters siv lub hauv paus ntsiab lus ntawm hluav taws xob tiv thaiv los ntsuas cov dej noo hauv ntau yam khoom. Txij li thaum dej yog tus neeg xyuas pib thiab cov ntaub ntawv xws li ntoo, paj rwb, gypsum thiab quav nyab yog cov resistors, qhov yooj yim dua tam sim no ntws los ntawm cov khoom, qhov ntub dej yuav yog. Rau qhov tseeb, nws yog ib qho tseem ceeb kom paub tseeb tias lub koob ntsuas ntsuas tau ntsuas rau cov khoom tshwj xeeb uas tau sim - vim cov ntaub ntawv sib txawv muaj qhov sib txawv ntawm qhov sib txawv rau tam sim no.
Needle-free hygrometers, ntawm qhov tod tes, siv xov tooj cua electromagnetic zaus rau "scan" ib qho piv txwv ntawm cov khoom siv rau qhov muaj dej. Kev hloov pauv hauv electromagnetic tsis yog siv los ntsuas cov dej hauv cov qauv. Qhov tseeb ntawm lub ntsuas dej tsis muaj pinless cuam tshuam los ntawm qhov tshwj xeeb lub ntiajteb txawj nqus (SG) ntawm cov khoom raug kuaj, yog li lub ntsuas yuav tsum tau ntsuas rau SG ntawm cov khoom ntawd. Lub ntiajteb txawj nqus tshwj xeeb yog ib qho kev ntsuas ntawm qhov sib npaug ntawm cov khoom piv rau lwm yam khoom, feem ntau yog dej.
Ob rab koob thiab rab koob tsis muaj qhov ntsuas dej muaj qhov tshwj xeeb zoo thiab qhov tsis zoo uas yuav ua rau lawv muaj txiaj ntsig ntau dua los yog tsawg dua rau qhov tshwj xeeb ntsuas dej noo. Thaum twg koj yuav tsum siv tus pin-hom ya raws ntsuas thiab thaum twg koj yuav tsum siv lub ntsuas dej tsis muaj pinless?
Kev sim loj, tiaj tus, xws li tag nrho cov plag tsev
Pinless ya raws ntsuas tshwj xeeb hauv kev sim cov cheeb tsam loj ntawm cov qauv kom ya raws sai thiab ua tau zoo. Tsuas yog thawb lub scanning phaj rau hauv pem teb, nyeem nws, nqa nws thiab rov ua dua qhov scan hauv lwm txoj haujlwm. Lub scanning phaj kuaj xyuas thaj chaw loj ntawm ib lub sijhawm thiab siv sijhawm ob peb feeb xwb rau txhua daim tshev. Qhov no tso cai rau tus neeg siv ceev nrooj scan ntau thaj chaw ntawm cov qauv nrog cov txheeb ze yooj yim.
Pin hygrometers, ntawm qhov tod tes, tsuas tuaj yeem tshawb xyuas cov dej noo hauv thaj chaw me me ntawm cov pins. Tsis tas li ntawd, lawv yuav tsum tau nkag mus tob rau hauv cov khoom siv ntsuas kom tau txais kev nyeem tag nrho. Qhov no feem ntau txhais tau hais tias yuav tsum muaj lub zog ntau dua los nkag mus rau cov ntaub ntawv nyuaj, ua rau muaj kev pheej hmoo ntawm kev lim dej thiab kev puas tsuaj rau cov pins. Ob qhov chaw sim me me thiab kev siv zog ntxiv ua rau lub sij hawm thiab nqi zog ntawm kev ntsuas dej nyob rau thaj tsam loj.
Kev ntsuas dej noo hauv cov ntaub ntawv uas koj tsis xav ua kom puas
Pinless hygrometers yog qee zaum hu ua "non-invasive" lossis "non-destructive" hygrometers vim tias lawv tsis tas yuav nkag mus rau saum npoo ntawm cov khoom raug kuaj kom tau txais qhov ntsuas dej kom raug. Tias yog vim li cas ntau tus kws tshaj lij hauv pem teb ± siv cov hygrometers tsis siv neeg los ntsuas cov dej noo ntawm lawv cov plag tsev hardwood. Nrog lub ntsuas ntsuas tsis muaj koob, cov ntsiab lus noo noo tuaj yeem ntsuas yam tsis tas yuav ua kom puas hauv pem teb hardwood.
Needle hygrometers, ntawm qhov tod tes, yuav tsum nkag mus rau saum npoo ntawm cov khoom txhawm rau ua qhov kev sim kom raug. Nyob rau hauv daim ntawv thov qhov chaw saum npoo ntawm cov khoom kawg yuav tsum tau tiv thaiv, tawm hauv pinholes, txawm me me uas yuav muab tau yooj yim sau los yog padded nrog epoxy, feem ntau yog tsawg dua flattering.
Kev Txiav Txim Moisture Distribution hla lub Rooj Tswjhwm Saib
Thaum pinless ya raws ntsuas ntsuas rau cov dej noo hauv cov khoom, lawv muab qhov nruab nrab nyeem ntawm tag nrho cov dej noo hauv cheeb tsam scanned. Qhov no txhais tau hais tias yog kuaj pom cov hnab ntim dej noo, koj yuav tsis paub tias nws tob npaum li cas. Los yog, yog tias cov qauv ntawm cov khoom muaj lub plhaub sib txawv thiab cov ntsiab lus noo noo, koj yuav tsis paub qhov txawv.
Pin hom ya raws ntsuas - tshwj xeeb tshaj yog cov uas siv cov pins insulated - yog qhov zoo tshaj plaws ntawm kev txiav txim siab ya raws hauv Circuit Court boards. Nrog cov pins insulated, koj tuaj yeem thawb cov pins hauv ib feem ntawm ib nti, nyeem ntawv, thawb lawv mus rau lwm nti, nyeem lwm qhov, thiab rov ua cov txheej txheem txuas ntxiv mus txog thaum cov pins tau tso tag nrho. Kev faib cov dej noo hauv lub rooj tsavxwm tuaj yeem yog cov ntaub ntawv tseem ceeb rau cov neeg lag luam ntoo vim tias nws pab lawv txiav txim siab seb cov ntoo yuav kho li cas kom lawv tuaj yeem kho qhov chaw ua kom zoo.
