Ma transmitter opanikizika ndi zida zofunika kwambiri zoyezera pa ntchito yowongolera njira. Mu makonzedwe azinthu zodziyimira pawokha zamafakitale, mainjiniya nthawi zambiri amafunika kuyang'anira mavuto a "zero drift" mu ma transmitter opanikizika ndikuchita zero calibration moyenera. Zero drift imatanthauza chochitika chomwe chizindikiro chotulutsa cha chipangizo choyezera chimapatuka pang'onopang'ono kuchokera ku zero point yongopeka pakapita nthawi kapena chifukwa cha kusintha kwa chilengedwe pamene cholowetsacho chili zero (palibe kuchuluka koyezedwa komwe kumagwiritsidwa ntchito). Mwachitsanzo, chotumizira chopanikizika chokhala ndi 0 ~ 10 MPa chiyenera kutulutsa 4 mA (ya 4 ~ 20 mA output) chikakumana ndi kupanikizika kwa mpweya (zero gauge pressure). Zero drift imachitika pamene kutulutsa kwenikweni kumapatuka pang'onopang'ono komanso mosalekeza kuchokera ku mtengo uwu. Zolakwika zadongosolo zimayambitsidwa mwachindunji zomwe zimakhudza kulondola kwa muyeso ndi kulondola kwa kuwongolera.
Nchifukwa chiyani ma Pressure Transmitters sachedwa kugwedezeka ndi zero?
Mfundo Yoyesera:Ma transmitter opanikizika nthawi zambiri amagwira ntchito kutengera kusintha kwa chinthu chotanuka, chomwe chimakhudza kusamutsa kwamphamvu kwa kuthamanga. Njirayi imatha kukhudzidwa ndi zinthu monga malo oyika ndi mawonekedwe apakati, zomwe zimapangitsa kuti pakhale kusiyana kwa mfundo zero.
Zofunikira pa Kugwiritsa Ntchito:Ma transmitter opanikizika ndi osinthasintha nthawi zambiri amafunika kusintha kuti agwirizane ndi malo osiyanasiyana oikira ndi mikhalidwe yoyezera m'mafakitale. Mwachitsanzo, poyesa mulingo wamadzimadzi mu thanki yotsekedwa, kuzizira kwa mpweya kungapangitse kuti condensate ilowe mu mizere ya impulse ndi mbali yapansi ya transmitter, zomwe zimayambitsa zolakwika zoyezera. M'mikhalidwe yotere, kusuntha kolakwika kumafunika komwe kumasintha zero point ya transmitter kuti iyambe kuchokera ku kupsinjika kosiyana kolakwika kuti ikwaniritse zosowa zantchito.
Kuwonetsedwa kwa Zinthu:Zigawo zozindikira kuthamanga kwa magazi (monga ma diaphragm olekanitsa) zimalumikizana mwachindunji ndi choyezeracho. Kutupa, kukula, kukhudzidwa kwa tinthu tating'onoting'ono kapena kumamatira kwa choyezeracho kumatha kusintha mawonekedwe awo a makina, zomwe zimapangitsa kuti pakhale kusintha kwa zero point.
Zinthu Zachilengedwe:Kumangika kwa bolt kosafanana panthawi yoyika, kupsinjika kwa makina chifukwa cha kukulitsa kutentha kwa mapaipi ndi kupindika kapena kupanikizika kwakukulu kwa static (kwa ma transmitter a DP) kungayambitse kusintha kwa diaphragm yozindikira kupanikizika, zomwe zimayambitsa zolakwika zosasinthika. Kusintha kwa kutentha ndi kugwedezeka pamalopo kungayambitsenso zovuta kwambiri.
Kodi Mungatani Kuti Muthane ndi Zero Drift mu Pressure Transmitters?
Vuto la zero drift ndi lofala kwambiri m'ma transmitter opanikizika ndipo limafuna njira zosiyanasiyana zaukadaulo kuti lichepetse:
Kuyesa ndi Kulinganiza kwa Mafakitale:Chitani mayeso ozama a kutentha kochepa komanso kuthamanga kwa mpweya nthawi yopangira, ndikusunga deta yolipirira mu chotumizira kuti ikonzedwe nthawi yeniyeni.
Kukonza Zinthu ndi Njira:Ikani zinthu zotanuka zomwe zimakhala ndi mphamvu yotopa kwambiri komanso kutentha kokhazikika (Hastelloy, ceramic diaphragms, ndi zina zotero) ndikukonza njira zochizira kutentha kuti muchepetse kupsinjika kwamkati.
Kukonza ndi Kukonza Nthawi Zonse:Khazikitsani nthawi zowerengera kutengera momwe ntchito ikuyendera ndipo chitani zowerengera pamalopo pansi pa ziro.
Kukhazikitsa ndi Kugwiritsa Ntchito Bwino:Pewani kumangitsa kwambiri, gwiritsani ntchito mabulaketi kuti muchepetse kupsinjika kwa mapaipi ndikuletsa kuuma kwapakati kapena kupangika kwa makristalo.
Shanghai Wangyuanndi kampani yopanga zida komanso yopereka zida yokhala ndi zaka zoposa 20 zokumana nazo. Tasonkhanitsa njira zambiri zogwiritsira ntchito pamalopo komanso ukadaulo wabwino wothetsera mavuto, zomwe zimatithandiza kupatsa makasitomala zinthu zokhazikika komanso zodalirika pamodzi ndi chithandizo chaukadaulo chaukadaulo komanso chaukadaulo panthawi yake. Ngati muli ndi mafunso okhudza kusankha kapena kugwiritsa ntchito ma transmitter opanikizika ndi kutentha, chonde musazengereze kutilankhulana nafe kuti mupeze mayankho.
Nthawi yotumizira: Januwale-14-2026