Nekusimukira kwenguva, maindasitiri akadai setsvagiridzo yesainzi, zvekurima, HVAC, machira, makamuri emakombuta, nzvimbo yedenga, uye magetsi ari kuwedzera kuda kushandiswa kwemwandosensors. Iko kudiwa kwemhando yechigadzirwa kuri kuwedzera uye kukwira, uye kutonga kwezvakatipoteredzatembirichauye hunyoro, pamwe nekutariswa nekuongororwa kwehunyoro hwezvinhu zvemaindasitiri, zvese zvave zvakajairikatechnicalzvinodiwa. Humidity sensors uye humidity kuyerwa ndiwo maindasitiri akabuda mu1990s. Maitiro ekushandisa humidity sensors zvinobudirira uye maitiro ekutonga iyoperformanceyehumidity sensors inoramba iri nyaya yakaoma yehunyanzvi kune avhareji mushandisi.
Heano mamwe mareferenzi ekuti ungasarudza sei humidity sensors:
Kugadzika uye hunhu hwehumidity sensors: Humidity sensors yakakamurwa kuita yekupikisa-mhando uyekugona-mhando, uye chimiro chekutanga chechigadzirwa ndechekupfekedza zvinhu zvinonzwa pane substrate kuti igadzire membrane inonzwa. Mushuremvuramhute iri mumhepo inoshambadzirwa pane inonzwa zvinhu, iyo impedance uye dielectric nguva dzose yechinhu inoshanduka zvakanyanya, nekudaro ichigadzira humidity-sensitive element.
Kurongeka uye kugadzikana kwenguva refu: Kurongeka kwehumidity sensors kunofanirwa kusvika ± 2% kusvika ± 5% RH. Zvakaoma kuwana iyi nhanho, uye kazhinji, kukukurwa kuri mukati me ± 2%. Kunyange yakakwirira.
Tembirichacoefficient of humidity sensors: Pamusoro pekuve nehanya nekunyorova kwezvakatipoteredza, humidity sensors zvakare inonzwa zvakanyanya kune tembiricha. Tembiricha coefficient iri mukati me 0.2 kusvika 0.8% RH/℃, uye mamwe anogona kusiyana zvichienderana nehunyoro hwehukama. Iyo mutsara tembiricha inodonha yehumidity sensors inokanganisa zvakananga muripo, uye isiri-mutsara tembiricha inodonha kazhinji inotadza kuwana yakanaka muripo mhedzisiro.Chetene Hardware tembiricha yekutevera muripo inogona yechokwadi muripo mhedzisiro inowanikwa. Kushanda tembiricha yemhando yehumidity sensors yakaoma kudarika 40 ℃.
Simbakupihwa kwehumidity sensors: Zvizhinji-zvinonzwa kunyorova zvinhu zvakaita sesimbi oxide ceramics, polymers, uye lithium chloride inochinja maitiro kana kutadza kana uchiisa DC.voltage. Naizvozvo, idzi humidity sensors dzinofanirwa kufambiswa neACsimba.
Kuchinjana: Parizvino, pane dambudziko rakakura nekuchinjika kwema sensors ekunyorova. Sensors yemhando imwechete haigone kuchinjika, iyo inokanganisa zvakanyanya mashandisiro ekushandisa uye inowedzera matambudziko mukugadzirisa uye kutumirwa. Vamwe vagadziri vakaita nhamburiko dzakasiyana-siyana munhau iyi uye vakawana miuyo yakanaka.
Humidity calibration: Kugadzirisa humidity kwakaoma pane kuyera tembiricha. Ma thermometer akajairika anowanzo shandiswa kugadzirisa tembiricha, asi pakugadzirisa humidity, nzira dzekugadzirisa munyu dzakagadzika dzinowanzoshandiswa, uye tembiricha inofanirwa kuyerwa zvakare.
Nzira dzinoverengeka dzekutanga kutonga mashandiro ehumidity sensors: Mukushaikwa kwekuomerwa kwehumidity sensors, dzimwe nzira dzakareruka uye dziri nyore dzinogona kushandiswa kutonga mashandiro ehumidity sensors.
Consistency kutsunga: Tenga anopfuura maviri humidity sensors emhando imwechete uye mugadziri. Zvakawanda, zviri nani. Zviise pamwe chete uye enzanisa zvinobuda zvakakosha. Pasi pemamiriro ezvinhu akadzikama, cherechedza kuwirirana kwemuedzo. Kumwe kuyedza kunogona kuitwa nekurekodha mukati memaawa makumi maviri nemana, uye tarisa mune akasiyana hunyoro uye tembiricha mamiriro, senge yakakwira, yepakati, uye yakaderera humidity, kunyatsoona kuenderana uye kugadzikana kwechigadzirwa, kusanganisira tembiricha muripo.
Humidity inonzwa nekufuridza nemuromo kana kushandisa dzimwe nzira dzekunyorovesa: Tarisa kunzwisiswa kwayo, kuberekazve, kunyura kwehunyoro uye kuita kwe desorption, pamwe nekugadziriswa uye huwandu hwepamusoro hwechigadzirwa.
Kuyedza mumabhokisi akavhurika uye akavharika: Enzanisa uye edza kuti anowirirana here, uye tarisa mhedzisiro yekupisa.
Kuedza patembiricha yakakwira uye yakaderera (maererano neyakajairwa mugwaro): Edza uye enzanisa nemarekodhi usati uye wadzokera kune zvakajairwa, kuti uongorore kuchinjika kwekushisa kwechigadzirwa uye kuona kuenderana kwechigadzirwa.
Kuita kwechigadzirwa pakupedzisira kunoenderana neakazara uye akakodzera nzira dzekuona dzedhipatimendi rekuongorora kwemhando. Thesaturationmhinduro yemunyu inoshandiswa kugadzirisa, kana chigadzirwa chinogona kuenzaniswa nekuedzwa. Kurebesa kwenguva refu panguva yekushandiswa kwenguva refu kwechigadzirwa kunodiwawo kuti unyatso kutonga kunaka kwehumidity sensor.
Ongororo yeakawanda humidity sensor zvigadzirwa pamusika: Zvizhinji zvemukati uye zvekunze humidity sensor zvigadzirwa zvakabuda pamusika, zvine capacitance-mhando mwando-sensitivezvinhu zviri kuwanda. Mhando dzezvinhu zvekunzwa dzinonyanya kusanganisira polymers, lithiumchloride, uye okisidhi yesimbi.
Zvakanakira capacitance-mhando mwando-inonzwa zvinhu kukurumidza kupindura kumhanya, diki saizi, uye yakanaka mutsara. Dzakadzikama. Zvimwe zvigadzirwa zvekunze zvinewo kudziya kwakanyanya kwekushanda. Zvisinei, zvigadzirwa zvepamusoro zvemhando iyi zvinowanzobva kunze kwenyika uye zvinodhura. Zvimwe zvigadzirwa zvemutengo wakaderera pamusika zvinowanzotadza kuzadzisa zviyero zviri pamusoro, zvisina kurongeka, kusagadzikana, uye kuberekana. Kusiyana kwehunyoro hwepasi nepamusoro (pasi pe30% RH uye pamusoro pe80% RH) yakakosha. Zvimwe zvigadzirwa zvinoshandisa single-chip microcomputers kubhadharisa uye kururamisa, izvo zvinoderedza iko kurongeka uye zvinounza zvikanganiso zvekutsauka kukuru uye mutsara wakashata. Pasinei nepamusoro kana yakaderera-yekupedzisira capacitance-mhando yekunyorova-sensitive zvinhu, kugadzikana kwenguva refu hakuna kunaka. Mushure mekushandiswa kwenguva refu, kudonha kunowanzo kuoma, uye kusiyanisa mukunyoro-inonzwacapacitancekukosha kuri padanho rePF. A 1% RH shanduko ishoma pane 0.5 pF, uye kudonha kwe capacitance values kunowanzo kukonzeresa zvikanganiso zvemakumi eRH%. Mazhinji capacitance-mhando-inonzwa kunyorova zvinhu hazvina kuita kushanda patembiricha iri pamusoro pe40 ℃, uye kazhinji anokundikana kana kukuvara.
Capacitive mwando-sensitive zvinhu zvakare zvine zvimwe zvikanganiso maererano nekuora kwekudzivirira. Vanowanzoda hutsanana hwepamusoro munharaunda. Zvimwe zvigadzirwa zvinowanzotadzawo kutadza sekutadza kwechiedza uye kutadza kumira. Metal oxide ceramic humidity sensors ine mabhenefiti akafanana necapacitive humidity sensors, asi kuputika kweguruva kweceramic pores kunogona kukonzera kutadza kwechikamu. Kazhinji, nzira yekusimbisa kubvisa guruva inoshandiswa, asi mhedzisiro yacho haina kunaka, uye haigone kushandiswa munzvimbo dzinopisa uye dzinoputika. Alumina inonzwa zvinhu hazvigone kukunda kushaya simba kwe "kuchembera kwechisikigo" kwechimiro chepamusoro, uye iyo impedance haina kugadzikana. Metal oxide ceramic humidity sensors zvakare ine dhizaini yekusagadzikana kwenguva refu kugadzikana.
Lithium chloride humidity sensors ine mukana wakatanhamara wekugadzikana kwenguva refu. Kuburikidza neyakaomesesa kugadzirwa kwemaitiro, izvo zvinogadzirwa zviridzwa uye masensa zvinogona kuwana yakanyanya kurongeka, kugadzikana kwakanaka, uye mutsara, kuve nechokwadi chekuvimbika kwenguva refu yehupenyu hwesevhisi. Lithium chloride humidity sensors haigone kutsiviwa nezvimwe zvinhu zvekunzwa maererano nekugadzikana kwenguva refu.
Nguva yekutumira: Feb-26-2024