Eia kekahi mau ʻōlelo aʻoaʻo iā ʻoe e pili ana i ke koho ʻana i nā mea ʻike haʻahaʻa:

Hoʻokaʻawale a me nā hiʻohiʻona o nā mea haʻahaʻa haʻahaʻa: Ua māhele ʻia nā mea ʻike haʻahaʻa i ke ʻano kūʻē a mecapacitance-ʻano ʻano, a ʻo ke ʻano kumu o ka huahana e uhi i kahi mea ʻike ma luna o ka substrate e hana i kahi membrane sensing. Ma hopewaiHoʻopili ʻia ka mahu i loko o ka lewa ma luna o ka mea ʻike, hoʻololi nui ka impedance a me ka dielectric mau o ka mea, no laila e hoʻokumu ʻia ai kahi mea hoʻonaninani.

ʻO ka pololei a me ka paʻa lōʻihi: Pono ka pololei o nā mea ʻike haʻahaʻa e hiki i ± 2% a ± 5% RH. He paʻakikī ke hoʻokō i kēia pae, a ʻo ka mea maʻamau, aia ka drift i loko o ±2%. ʻOi aku ka kiʻekiʻe.

Mahanacoefficient of humidity sensors: Ma waho aʻe o ka ʻike ʻana i ka haʻahaʻa o ke kaiapuni, ʻoi aku ka maʻalahi o nā mea ʻike haʻahaʻa i ka wela. ʻO ka helu wela ma loko o ka 0.2 a i ka 0.8% RH/℃, a ʻokoʻa paha kekahi ma muli o ka haʻahaʻa pili. Hoʻopili pololei ka neʻe ʻana o ka wela laina o nā mea ʻike haʻahaʻa i ka hopena o ka uku, a ʻaʻole pinepine ka neʻe ʻana o ka wela laina ʻole i nā hopena uku maikaʻi.Waleme ka loaʻa ʻana o ka uku hoʻopaʻi wela ʻoiaʻiʻo. ʻO ka pae wela hana o ka hapa nui o nā mea ʻike haʻahaʻa he paʻakikī ke ʻoi aku ma mua o 40 ℃.

Ka manaka hoʻolako ʻana i nā mea ʻike haʻahaʻa: ʻO ka hapa nui o nā mea e pili ana i ka wai e like me ka metal oxide ceramics, polymers, a me ka lithium chloride e hoʻololi i ka hana a i ʻole ka hāʻule ʻana i ka wā e noi ai i kahi DC.uila uila. No laila, pono e hoʻohana ʻia kēia mau mea ʻike haʻahaʻa e ACmana.

Hoʻololi: I kēia manawa, aia kahi pilikia koʻikoʻi me ka hoʻololi ʻana o nā mea ʻike haʻahaʻa. ʻAʻole hiki ke hoʻololi i nā sensor o ke ʻano hoʻokahi, e hoʻopilikia koʻikoʻi i ka hopena hoʻohana a hoʻohui i nā pilikia i ka mālama ʻana a me ka hana. Ua hana kekahi mau mea hana i nā hana like ʻole ma kēia ʻano a ua loaʻa i nā hopena maikaʻi.

ʻO ka calibration haʻahaʻa: ʻoi aku ka paʻakikī o ka calibration o ka haʻahaʻa ma mua o ka calibration o ka mahana. Hoʻohana mau ʻia nā thermometer maʻamau no ka calibration wela, akā no ka calibration humidity, hoʻohana mau ʻia nā ʻano calibration solution solution saturated, a pono pū ke ana ʻia ka mahana.

Nui nā ʻano no ka hoʻoholo mua ʻana i ka hana o nā mea ʻike haʻahaʻa: I ka nele o ka calibration paʻakikī o nā sensor humidity, hiki ke hoʻohana ʻia kekahi mau ala maʻalahi a maʻalahi hoʻi e hoʻoholo i ka hana ʻana o nā sensor humidity.

Ka hoʻoholo paʻa ʻana: E kūʻai aku ma mua o ʻelua mau mea ʻike haʻahaʻa o ka ʻano like a me ka mea hana. ʻOi aku ka maikaʻi. E hoʻohui iā lākou a hoʻohālikelike i nā waiwai hoʻopuka. Ma lalo o nā kūlana paʻa, e nānā i ke kūlike o ka hoʻokolohua. Hiki ke ho'āʻo hou aʻe ma ka hoʻopaʻa ʻana i nā manawa i loko o 24 mau hola, a nānā i nā ʻano haʻahaʻa like ʻole a me nā kūlana wela, e like me ke kiʻekiʻe, waena, a me ka haʻahaʻa haʻahaʻa, e nānā pono i ka kūlike a me ka paʻa o ka huahana, me nā ʻano uku pānaʻi.

ʻIke ʻia ka haʻahaʻa ma ka puhi ʻana me ka waha a i ʻole ka hoʻohana ʻana i nā ʻano humidification ʻē aʻe: E nānā i kona ʻike, reproducibility, moisture absorption a me ka hana desorption, a me ka hoʻonā a me ka pae kiʻekiʻe o ka huahana.

Ka ho'āʻo ʻana ma nā pahu hāmama a pani ʻia: E hoʻohālikelike a hoʻāʻo inā paʻa lākou, a nānā i ka hopena wela.

Ke ho'āʻo ʻana i nā wela kiʻekiʻe a haʻahaʻa (e like me ka maʻamau ma ka manual): E hoʻāʻo a hoʻohālikelike me nā moʻolelo ma mua a ma hope o ka hoʻi ʻana i ka maʻamau, e nānā i ka hiki ke hoʻololi i ka wela o ka huahana a nānā i ke kūlike o ka huahana.

ʻO ka hana ʻana o ka huahana e pili ana i nā ʻano ʻike piha a kūpono o ka ʻoihana nānā maikaʻi. ʻO kahoʻopololeihoʻohana ʻia ka wai paʻakai no ka calibration, a i ʻole hiki ke hoʻohālikelike a hoʻāʻo ʻia ka huahana. ʻO ka calibration lōʻihi i ka wā lōʻihi o ka hoʻohana ʻana i ka huahana he mea pono hoʻi no ka hoʻoponopono ʻana i ka maikaʻi o ka sensor humidity.

Ka nānā ʻana o kekahi mau huahana sensor humidity ma ka mākeke: Nui nā huahana sensor humidity a me nā ʻāina ʻē i kū mai ma ka mākeke, me ka capacitance-type moisture-makaʻalamea maʻamau. ʻO nā ʻano o nā mea sensing ka nui o nā polymers, lithiumchloride, a me na oxide metala.

ʻO nā mea maikaʻi o ka capacitance-type moisture-sensitive element he wikiwiki pane wikiwiki, liʻiliʻi liʻiliʻi, a me ka linearity maikaʻi. Paʻa lākou. ʻO kekahi mau huahana ʻē aʻe he kiʻekiʻe ka wela o ka hana. Eia nō naʻe, ʻo nā huahana kiʻekiʻe o kēia ʻano ka hapa nui mai nā ʻāina ʻē a ʻoi aku ke kumukūʻai. ʻAʻole hiki i kekahi mau huahana haʻahaʻa ma ka mākeke ke hoʻokō i nā kūlana i luna, me ka linearity maikaʻi ʻole, kūlike, a me ka reproducibility. He mea koʻikoʻi ka hoʻololi ʻana i ka pae haʻahaʻa haʻahaʻa a me luna (ma lalo o 30% RH a ma luna o 80% RH). Hoʻohana kekahi mau huahana i nā microcomputers hoʻokahi-chip no ka uku a me ka hoʻoponopono ʻana, e hōʻemi ana i ka pololei a hoʻolauna i nā hemahema o nā deviations nui a me ka linearity maikaʻi ʻole. ʻAʻole i manaʻo ʻia nā ʻano mea hoʻonaninani kiʻekiʻe a haʻahaʻa paha, ʻaʻole kūpono ke kūpaʻa lōʻihi. Ma hope o ka hoʻohana lōʻihi, paʻakikī pinepine ka drift, a me ka hoʻololi ʻana i ka moisture-sensitivecapacitanceAia nā waiwai ma ka pae pF. ʻO ka hoʻololi 1% RH ka liʻiliʻi ma mua o 0.5 pF, a ʻo ka neʻe ʻana o nā waiwai capacitance ke kumu pinepine i nā hewa o nā ʻumi o RH%. ʻAʻole hiki i ka hapa nui o ka capacitance-type moisture-sensitive element ka hana e hana i nā mahana ma luna o 40 ℃, a hāʻule pinepine lākou a pohō paha.

Loaʻa kekahi mau hemahema i ke ʻano o ka pale ʻana i ka corrosion. Pono pinepine lākou i kahi kiʻekiʻe o ka maʻemaʻe ma ke kaiapuni. Hiki i kekahi mau huahana ke hāʻule ʻole e like me ka hemahema māmā a me ka hemahema static. Loaʻa i nā mea ʻike haʻahaʻa seramika metal oxide ka maikaʻi like me nā sensor humidity capacitive, akā hiki i ka hoʻopili ʻana o ka lepo o nā pores ceramic ke kumu i ka hemahema o nā mea. ʻO ka manawa pinepine, hoʻohana ʻia ke ʻano o ka mana e wehe i ka lepo, akā ʻaʻole kūpono ka hopena, ʻaʻole hiki ke hoʻohana ʻia i nā wahi lapalapa a pahū. ʻAʻole hiki i nā mea ʻike alumina ke lanakila i ka nāwaliwali o ka "ʻelemakule kūlohelohe" o ka ʻili honua, a ʻaʻole paʻa ka impedance. Loaʻa i nā mea ʻike hoʻohaʻahaʻa metala oxide ceramic ka hemahema o ka paʻa ʻole o ka wā lōʻihi.

Loaʻa i nā mea ʻike haʻahaʻa Lithium chloride ka pono koʻikoʻi o ke kūpaʻa lōʻihi maikaʻi loa. Ma o ke kaʻina hana koʻikoʻi, hiki i nā mea hana a me nā sensor ke hoʻokō i ka pololei kiʻekiʻe, kūpaʻa maikaʻi, a me ka linearity, e hōʻoiaʻiʻo ana i ke ola lawelawe lōʻihi. ʻAʻole hiki ke hoʻololi ʻia nā mea hoʻonaninani Lithium chloride e nā mea ʻike ʻē aʻe e pili ana i ka paʻa lōʻihi.