He aha nā ʻano ʻano like ʻole o nā mea ʻike wai kiʻekiʻe?

ʻO nā ʻano ʻano like ʻole o nā mea ʻike wai wai:

ʻAno Optical

Kahiko

ʻO ka hoʻokō

Diaphragm

ʻAno pōlele lana

1. Optical wai pae ike

Paʻa paʻa nā hoʻololi pae optic.Hoʻohana lākou i nā led infrared a me nā phototransistors, i hui pū ʻia i ka wā o ka sensor i ka lewa.Ke hoʻokomo ʻia ka hopena sensing i loko o ka wai, pakele ke kukui infrared, e hoʻololi i ke kūlana.Hiki i kēia mau mea ʻike ke ʻike i ka hele ʻana a i ʻole ka ʻole o kahi wai.ʻAʻole lākou i ʻike i ka mālamalama ambient, ʻaʻole i hoʻopilikia ʻia e nā ʻōhū i loko o ka ea, a ʻaʻole pili i nā ʻōpū liʻiliʻi i loko o nā wai.Hoʻohana kēia iā lākou i nā kūlana e pono e hoʻopaʻa ʻia nā loli mokuʻāina me ka wikiwiki a me ka hilinaʻi, a hiki ke hana me ka hilinaʻi no ka manawa lōʻihi me ka mālama ʻole.

ʻO ka hemahema o ka mea ʻike kiʻekiʻe o ka optical ʻo ia ka mea hiki ke hoʻoholo inā aia kahi wai.Inā makemake ʻia nā pae hoʻololi, (25%, 50%, 100%, a me nā mea ʻē aʻe) pono kēlā me kēia mea i kahi ʻike hou.

2. Capacitive wai pae ike

Hoʻohana nā mea hoʻololi pae capacitive i ʻelua conductors (i hana mau ʻia me ka metala) i kahi kaapuni me kahi mamao pōkole ma waena o lākou.Ke hoʻokomo ʻia ka mea hoʻokele i loko o kahi wai, hoʻopiha ia i kahi kaapuni.

ʻO ka pōmaikaʻi o kahi hoʻololi pae capacitive hiki ke hoʻohana ʻia e hoʻoholo i ka piʻi a hāʻule paha o ka wai i loko o kahi pahu.Ma ka hana ʻana i ke kiʻekiʻe e like me ka pahu, hiki ke ana ʻia ka capacitance ma waena o nā conductors.ʻAʻohe capacitance ʻaʻohe wai.ʻO ka capacitor piha ke ʻano o kahi pahu piha.Pono ʻoe e hoʻopaʻa i nā ana "ʻokoʻa" a me "piha" a laila calibrate i ka mika me 0% a me 100% e hōʻike i ka pae.

ʻOiai ʻoi aku ka maikaʻi o nā sensor pae capacitive no ka loaʻa ʻole o nā ʻāpana neʻe, ʻo kekahi o kā lākou hemahema ʻo ia ka corrosion o ka conductor e hoʻololi i ka capacitance o ka conductor a koi i ka hoʻomaʻemaʻe a i ʻole recalibration.ʻOi aku ka maʻalahi o lākou i ke ʻano o ka wai i hoʻohana ʻia.

3. Conductive wai pae ike

ʻO kahi hoʻololi pae conductive he mea ʻike me kahi pilina uila ma kahi pae kikoʻī.E hoʻohana i ʻelua a ʻoi aʻe paha nā mea hoʻokele insulated me nā hopena inductive i ʻike ʻia i loko o kahi paipu e iho i loko o kahi wai.ʻO ka lōʻihi e lawe i ka volta haʻahaʻa, ʻoiai ke hoʻohana ʻia ka conductor pōkole e hoʻopau i ke kaapuni ke piʻi ka pae.

E like me ka capacitive level switch, conductive level switch e pili ana i ka conductivity o ka wai.No laila, kūpono wale lākou no ke ana ʻana i kekahi mau ʻano wai.Eia hou, pono e hoʻomaʻemaʻe pinepine ʻia kēia mau ʻike sensor e hoʻemi i ka lepo.

4. ʻIkepili pae diaphragm

Ke hilinaʻi nei ka diaphragm a i ʻole ka pae pneumatic i ke kaomi ea e pana i ka diaphragm, e hoʻopili ana me kahi micro switch i loko o ke kino o ka hāmeʻa.Ke piʻi aʻe ka pae, piʻi ka piʻi o loko o ka paipu ʻike a hiki i ka hoʻā ʻana o ka microswitch a i ʻole ka mea ʻike kaomi.Ke hāʻule ka pae wai, hāʻule pū ka ea a hemo ke kī.

ʻO ka pōmaikaʻi o kahi hoʻololi pae diaphragm ʻaʻole pono ka lako mana i loko o ka pahu, hiki ke hoʻohana ʻia me nā ʻano wai he nui, a no ka mea ʻaʻole pili ka hoʻololi me ka wai.Eia naʻe, no ka mea he mīkini mīkini, pono ia e mālama i ka manawa.

5. E lana ana ka ikehu pae wai

ʻO ke kuapo lana ka mea ʻike pae kumu.ʻO lākou nā mea hana mechanical.Hoʻopaʻa ʻia kahi lana hollow i ka lima.Ke piʻi a hāʻule ka lana i loko o ka wai, hoʻokuʻu ʻia ka lima i luna a i lalo.Hiki ke hoʻopili ʻia ka lima i kahi hoʻololi magnetic a i ʻole mechanical e hoʻoholo ai i ka on/off, a i ʻole hiki ke hoʻopili ʻia i kahi ana pae e piʻi aʻe mai ka piha a i ka hakahaka ke hāʻule ka pae.

ʻO ka hoʻololi lana spherical i loko o ka pahu lua he mea ʻike maʻamau maʻamau.Hoʻohana pū ʻia nā pāpaʻi wai i nā hoʻololi lana ma ke ʻano he ala waiwai e ana i nā pae wai ma nā kumu lalo.

Hiki i nā hoʻololi lana ke ana i kēlā me kēia ʻano wai a hiki ke hoʻolālā ʻia e hana me ka ʻole o ka mana.ʻO ka hemahema o nā hoʻololi lana ʻoi aku ka nui ma mua o nā ʻano hoʻololi ʻē aʻe, a no ka mea he mechanical lākou, pono lākou e lawelawe pinepine ʻia ma mua o nā hoʻololi pae ʻē aʻe.