Pa ntchito zamafakitale masiku ano, masensa oyambitsa zinthu kuti azindikire malo ndi ofunikira kwambiri. Poyerekeza ndi ma switch amakina, amatha kupanga zinthu zabwino kwambiri: kuzindikira kosakhudzana ndi chinthu, kusawonongeka, kusintha pafupipafupi komanso kulondola kwambiri kwa kusintha. Kuphatikiza apo, sakhudzidwa ndi kugwedezeka, fumbi ndi chinyezi. Masensa oyambitsa zinthu amatha kuzindikira zitsulo zonse zosakhudzana ndi chinthu. Amatchedwanso kuti ma switch oyandikira kwambiri kapena ma sensor oyambitsa zinthu.
Imagwiritsidwa ntchito kwambiri ndipo imatha kuchepetsa katundu
Ma sensor oyambitsa zinthu ali ndi ntchito zosiyanasiyana, makamaka pozindikira ndi kuyang'anira malo a zitsulo. Ma sensor oyambitsa zinthu ndi oyenera kwambiri makampani opanga magalimoto, makampani opanga chakudya, makampani opanga zida zamakina, ndi zina zotero. Ma switch oyandikira zinthu angagwiritsidwe ntchito m'malo oopsa. Ukadaulo wake wa NAMUR kapena chivundikiro cholimba chingathandize kuonetsetsa kuti pali mphamvu yolimbana ndi kuphulika.
Zipangizo zomangira masensa oyambitsa magetsi nthawi zambiri zimakhala aloyi wa nickel-copper kapena chitsulo chosapanga dzimbiri. Pakati pawo, chomalizachi ndi choyenera kwambiri pa chinyezi chambiri kapena malo owononga. Chifukwa cha kapangidwe kake kolimba komanso mfundo yogwirira ntchito yosawonongeka, masensa awa angagwiritsidwe ntchito ngati mayankho odalirika pazinthu zambiri. Pamagwiritsidwe ntchito omwe ali ndi slatter, masensa oyambitsa magetsi amathanso kuphimbidwa ndi zokutira zapadera, monga zokutira za PTFE kapena zinthu zina zofanana.
Mfundo yogwirira ntchito ya masensa oyambitsa
Masensa oyambitsa zinthu (inductive sensors) amachita kuzindikira zinthu zachitsulo mosakhudzana ndi kukhudzana nazo mwa kuzindikira kusintha kwa ma elekitiromagineti. Amagwira ntchito motsatira mfundo ya kulowetsa mphamvu ya elekitiromagineti: mphamvu ya maginito ikasintha, mphamvu yamagetsi imapangidwa mu kondakitala.
Malo ozindikira a sensa iyi amatulutsa minda yamagetsi yamagetsi yothamanga kwambiri. Chinthu chachitsulo chikayandikira, mphamvu yamagetsi ya sensayo imakhudzidwa ndi chinthucho ndi kusintha kwake. Kusinthaku kudzazindikirika ndi sensayo ndikusandulika chizindikiro chosinthira kuti chisonyeze kukhalapo kwa chinthucho.
Mapangidwe a masensa oyambitsa zinthu ndi osiyanasiyana, ndipo mtunda wofanana wa kusinthana kwawo umasiyananso. Mtunda wosinthira ukakhala waukulu, ndiye kuti sensa imakulanso. Mwachitsanzo, ingagwiritsidwe ntchito m'mapulogalamu omwe sensa singayikidwe mwachindunji pafupi ndi chinthucho.
Pomaliza, masensa oyambitsa zinthu amagwira ntchito molondola kwambiri komanso modalirika. Chifukwa cha ntchito yawo yosakhudzana ndi makina komanso mitundu yosiyanasiyana ya mapangidwe, ndi zida zofunika kwambiri pa ntchito zambiri zamafakitale.
Mfundo yogwirira ntchito ya masensa oyambitsa
Masensa oyambitsa zinthu (inductive sensors) amachita kuzindikira zinthu zachitsulo mosakhudzana ndi kukhudzana nazo mwa kuzindikira kusintha kwa ma elekitiromagineti. Amagwira ntchito motsatira mfundo ya kulowetsa mphamvu ya elekitiromagineti: mphamvu ya maginito ikasintha, mphamvu yamagetsi imapangidwa mu kondakitala.
Malo ozindikira a sensa iyi amatulutsa minda yamagetsi yamagetsi yothamanga kwambiri. Chinthu chachitsulo chikayandikira, mphamvu yamagetsi ya sensayo imakhudzidwa ndi chinthucho ndi kusintha kwake. Kusinthaku kudzazindikirika ndi sensayo ndikusandulika chizindikiro chosinthira kuti chisonyeze kukhalapo kwa chinthucho.
Mapangidwe a masensa oyambitsa zinthu ndi osiyanasiyana, ndipo mtunda wofanana wa kusinthana kwawo umasiyananso. Mtunda wosinthira ukakhala waukulu, ndiye kuti sensa imakulanso. Mwachitsanzo, ingagwiritsidwe ntchito m'mapulogalamu omwe sensa singayikidwe mwachindunji pafupi ndi chinthucho.
Pomaliza, masensa oyambitsa zinthu amagwira ntchito molondola kwambiri komanso modalirika. Chifukwa cha ntchito yawo yosakhudzana ndi makina komanso mitundu yosiyanasiyana ya mapangidwe, ndi zida zofunika kwambiri pa ntchito zambiri zamafakitale.
Mapangidwe osiyanasiyana amathandiza kuzindikira mosavuta
Chifukwa cha kulekerera kochepa kwa muyeso, masensa oyambitsa amatha kutsimikizira kuti akupezeka modalirika. Mtunda wosinthira wa masensa oyambitsa umasiyana malinga ndi kapangidwe kake. Mwachitsanzo, mtunda wosinthira wa masensa akuluakulu oyambitsa ukhoza kufika mpaka 70mm. Masensa oyambitsa amabwera m'mitundu yosiyanasiyana yokhazikitsa: Masensa oyambitsa amatuluka ndi pamwamba pa malo okhazikitsa, pomwe masensa osatulutsa amatuluka mamilimita angapo, zomwe zimapangitsa kuti pakhale mtunda wosinthira waukulu.
Mtunda wozindikira wa masensa oyambitsa umakhudzidwa ndi coefficient yokonza, ndipo mtunda wosinthira wa zitsulo zina kupatula chitsulo ndi wocheperako. LANBAO imatha kupereka masensa oyambitsa omwe sali ochepetsedwa ndi correction factor ya 1, omwe ali ndi mtunda wosinthira wofanana wa zitsulo zonse. Masensa oyambitsa nthawi zambiri amagwiritsidwa ntchito ngati PNP/NPN nthawi zambiri amatseguka kapena nthawi zambiri amatsekedwa. Ma Model okhala ndi analog output amatha kukwaniritsa zofunikira zapadera.
Mapangidwe osiyanasiyana amathandiza kuzindikira mosavuta
Chifukwa cha kulekerera kochepa kwa muyeso, masensa oyambitsa amatha kutsimikizira kuti akupezeka modalirika. Mtunda wosinthira wa masensa oyambitsa umasiyana malinga ndi kapangidwe kake. Mwachitsanzo, mtunda wosinthira wa masensa akuluakulu oyambitsa ukhoza kufika mpaka 70mm. Masensa oyambitsa amabwera m'mitundu yosiyanasiyana yokhazikitsa: Masensa oyambitsa amatuluka ndi pamwamba pa malo okhazikitsa, pomwe masensa osatulutsa amatuluka mamilimita angapo, zomwe zimapangitsa kuti pakhale mtunda wosinthira waukulu.
Mtunda wozindikira wa masensa oyambitsa umakhudzidwa ndi coefficient yokonza, ndipo mtunda wosinthira wa zitsulo zina kupatula chitsulo ndi wocheperako. LANBAO imatha kupereka masensa oyambitsa omwe sali ochepetsedwa ndi correction factor ya 1, omwe ali ndi mtunda wosinthira wofanana wa zitsulo zonse. Masensa oyambitsa nthawi zambiri amagwiritsidwa ntchito ngati PNP/NPN nthawi zambiri amatseguka kapena nthawi zambiri amatsekedwa. Ma Model okhala ndi analog output amatha kukwaniritsa zofunikira zapadera.
Yolimba komanso yodalirika - Chitetezo chapamwamba choyenera malo ovuta
Popeza kuti masensawa ali ndi kutentha kwakukulu komanso chitetezo champhamvu, ndi oyenera kugwiritsidwa ntchito m'malo ovuta kwambiri m'mafakitale. Pakati pawo, masensa oyambitsa omwe ali ndi chitetezo cha IP68 amathanso kutseka kwambiri m'mafakitale monga chakudya, mankhwala, ndi makina omanga. Kutentha kwawo kogwirira ntchito kumatha kufika 85 °C osapitirira apo.
Cholumikizira cha M12 chimatsimikizira kuyika kosavuta
Cholumikizira cha M12 ndiye njira yodziwika bwino yolumikizira masensa chifukwa imatha kuonetsetsa kuti kuyika kwake kuli mwachangu, kosavuta komanso kolondola. LANBAO imaperekanso masensa oyambitsa magetsi okhala ndi maulumikizidwe a chingwe, omwe nthawi zambiri amayikidwa m'mapulogalamu omwe ali ndi malo ochepa. Chifukwa cha kugwiritsidwa ntchito kwake kwakukulu komanso kudalirika kwakukulu, masensa oyambitsa magetsi ndi zinthu zofunika kwambiri muukadaulo wamakono wodziyimira pawokha ndipo amagwiritsidwa ntchito m'magawo ambiri amafakitale.
Nthawi yotumizira: Sep-03-2025