Taiaho ine: te parau tumu o te mahi. Taiaho ine pāmahana mamao (whakaahua)

Temperature inenga kia whakapā me te mamao. Te nuinga noa thermocouples, ine pāmahana me pūoko parenga iahiko e rapu utu whakapā ki te ahanoa, ie. K. ine ona ake te pāmahana. mahi ratou i te reira āta, engari he ngāwari.

whanganga pūoko Takiwā te radiation pōkākā i te ahanoa, whakarato hua tere, me e nuitia whakamahia ki te whakatau i te pāmahana o te neke, me te tinana pahoho i roto i vacuo me uaua e tika ana ki te fakaaoao o te taiao, te āhuatanga o te āhua riri haumaru ranei. Ko te utu o taua whakaaro ko ngā nui, ahakoa i roto i ētahi wā rite ki te whakapā atu pūrere.

thermometry taetahi

tikanga taetahi mō te whakatau i te kanapatanga katoa whakamahi i te roangaru tomu'a. Implementations ngā i pōkai puritia-ringa ohie ki inenga mamao ki mātanga whakaaro kawe tuku ki te wā kotahi mau he ahanoa me ona pānuitanga pāmahana ki te kia tomo i roto i te mahara tā ratou ranei. E māngai pūoko pahoho rite pūhohe ohie ki iti whakaritenga te hikohiko mamao, me te tiketike-kaha ki ngā pūrere mamao PID-mana. whakaata tākaka, taiaho whai, tautauā wai, te aroaro o te whakaatu, me te matawai - kōwhiringa aroturuki tukanga kōwhiringa me ngā pūnaha whakahaere.

Whirihoranga, te tātari spectral, ngā pāmahana whakahaere, optics, te wā urupare me te tiaho o te ahanoa he āhuatanga nui e pā mahi a kia āta kia whakaaro i roto i te tukanga whiriwhiri.

kia waiho te pūoko he kuware e rua-waea, me pūrere nui-tūtohutanga kākahu-ātete matatini.

Tīpakonga o te whakautu spectral me ngā pāmahana e pā ana ki te mahi ine motuhake. E whakamahia wavelengths Poto mō te tiketike pāmahana me te roa - no te iti. Ki te he mārama nga taonga, hei tauira, kirihou me te karaihe, ko reira te tātari uzkovolnovaya tika. Ko te ropu absorption o CH polyethylene kiriata ko te 3.43 .mu.m. Wehe o te tūāwhiorangi i roto i tēnei awhe e ohie te tätaitanga o te emissivity. Waihoki, hei puatakore rauemi karaihe-rite i te roangaru o 4.6 microns, e taea ana ki tika te whakatau i te pāmahana o te mata karaihe. 1-4 microns emitting rohe āhei ki te hanga inenga mā te mārua tatau tirohanga me ruma pēhanga. Alternative - te whakamahi o te taura muka-whatu.

He iti i roto i te nuinga o te wā optics ko RTT, mai te mara o te tirohanga o te rahi o te 3 cm i te tawhiti o te 50 cm, me te wa whakautu iti iho i te 1 s he rawaka. Hoki taratahi ahanoa pokarekarenga iti nohopuku ranei riro tika i roto i te iti (diameter 3mm) atu iti inenga (0.75 mm) wahi ranei. Tawhiti te whāinga (3-300 m) e rapu whakatikatikanga whatu, rite te mara paerewa o te tirohanga riro nui rawa. I roto i ētahi wā, e whakamahia ana i tēnei tikanga te he radiometry rua-poipoi. muka Optical taea ki faaatea i te hikohiko i ngā taiao pukuriri, ki te whakakore i te pānga o te ngangau me te ki te whakaoti i te raruraru o te whai wāhi.

Taiaho ine pāmahana waiwai te mana i roto i te whānuitanga 0.2-5.0 ki te wā urupare. Ka taea e whakautu Tere ake i te haruru tohu me te pānga puhoi i runga i te tūtohutanga. A, no te arataki whakawera titau te whakautu tonu, a mo te nekeneke - te pōturi te whakautu.

Ko te kuware taetahi IR ine pāmahana me te whakamahia i roto i te wā i reira ki te hua-kounga tiketike hanga ko te whakahaere i te pāmahana tino nui.

thermometry rua-roangaru

Hoki atu mahi matatini, kei hea he tino te tika ine tino, a te wahi i raro i te hua e ki te ahotea tinana ranei matū, ka pā radiometry rua-poipoi. puta te ariā i roto i te tīmatanga o te tau 1950, me ngā rerekētanga tata i roto i te hoahoa o te taputapu, me te whakapiki ake i tona hua, me te whakaiti i ngā utu.

Kei roto i te tikanga i roto i ine i te kiato te mana spectral i wavelengths rua rerekē. Ka taea te pānui i te pāmahana o te ahanoa tika i te mea, ki te te emissivity o te taua mo ia roangaru. ka kia pono noa, ki te te mara o te tirohanga wāhanga āraia rauemi āhua makariri, pērā i te puehu, mata waea o te matapihi hina, me te translucent tohu. tikanga he ohie te ariā. Ki te ko te taua (mo te tinana hina) e rua roangaru maama, heke te whakarea tukunga e ka riro hautanga ki te pāmahana te pā ana.

whakamahia Tärua-roangaru taiaho ine pāmahana i roto i te ahumahi, me te rangahau rite he, pūoko ahurei ohie e taea te whakaiti i hapa inenga.

I tua atu, whakaturia ine multiwavelength mō ngā rauemi e kore e tinana hina, te whakarea absorption i rerekē ki te roangaru i. I roto i enei wā rapu tatou he tātaritanga āmiki o te āhuatanga mata rauemi i runga i te hononga o te whakarea o te roangaru, pāmahana me te hanganga matū o te mata. Ki enei raraunga ko reira taea ki te hanga i tētahi hātepe tātaitanga i runga i te radiation spectral i wavelengths rerekē i runga i te pāmahana rānei.

ture i whakarite ai

Hei aromatawai i te tika o te ine me mohio te kaiwhakamahi te whai ake:

• pūoko IR ere kore wehewehe tae.
• Ki te he pīataata te mata, na ka whakapumautia te pūrere e kore tukuna anake engari ano hoki te pūngao kitea.
• Ki te he mārama te ahanoa, he reira te tātari IR tika (hei tauira, puatakore karaihe i 5 microns).
• I te iwa i roto i o tekau take e hiahiatia ana inenga tino pau te. Ka whakarato pānuitanga tukurua me te kore o te rītaha te pū e tika ana. A, no te he uaua nga huringa maama me te tukatuka, kia noho i rua- maha-roangaru radiometer ranei.

huānga hanganga

mahi taiaho ine pāmahana whakapā-kore i runga i te parau tumu o te pūngao pōkākā ki te tomokanga ki me putanga tohu. ngā o te kohikohi optics, arotahi, whiriwhiringa spectral me te pūoko hei atanga waho pūrere taiawhio Basic. kawea tukatuka hihiri i roto i rerekē, engari e taea te heke te reira ki te whakarei ake, tohu stabilization waiariki o linearization me panoni. Kei te whakamahia tikanga karaihe matapihi mo te radiation poto-poipoi, kiripaka hoki midrange me te germanium ranei konutea sulfide mo te 8-14 ngā micron, te muka - i wavelengths o 0.5-5.0 microns.

titiro

āhuatanga Taiaho ine pāmahana mamao e te mara o te tirohanga (FOV) - mana Temperature rahi wahi i te tawhiti i homai. Te huri i te diameter o te mara o te tirohanga he tika hautanga ki te huringa i roto i te tawhiti i waenganui i te ine pāmahana me te ahanoa inenga. Tei Ko tōna uara i runga i te kaiwhakanao me te pānga i runga i te utu wae. tauira He ki PP atu i 1 mm mo inenga ira, me te tuku kōrero roa-whānui (7 cm i te tawhiti o te 9 m). Mahi tawhiti e kore e pā te tika o te pānui, ki te whakakī te ahanoa te wahi inenga. E kore e nui te mate tohu mōrahi 1%.

te whāinga

Tikanga ine pāmahana IR hua inenga kahore pūrere atu. he manakohia hoki te whakamahi ki ngā nui, pērā i te tukutuku pepa, te wahi e kore te wāhi tika e hiahiatia tenei. Hoki ahanoa iti tawhiti ranei te whakamahi i te kurupae taiaho. Hanga rerekē e rave rahi o te kitenga taiaho.

1. Ko te kurupae wāhikē i te tuaka whatu. Ko te tauira māmā whakamahia e te i roto i ngā pūrere ki taumira iti ki ngā nui, ie. K. te takiwā o te ine, ko te nui rawa.
2. kurupae tafenga. Kaua e peka ke i te tuaka whatu. ine pokapū wahi tohua ïa i tetahi tawhiti.
3. taiaho Tärua. Wāhi diameter tapanga e rua ngā, e faaore te hiahia ki te imi te tātai ranei te diameter me e kore e arahi ki ngā hapa.
4. wāhikē atatohu Porohita. E whakaatu ana te reira i te mara o te tirohanga o tona rahi me te rohe waho.
5. 3-ira atatohu tafenga. Kei te wehea te kurupae ki ngā kanapa e toru i runga i te raina kotahi. tohu Irawaenga te pokapū wahi, me te diameter waho o tona tohu.

Te whāinga ki te whakarato āwhina whai hua i raro i te aronga o te ine pāmahana ïa i te ahanoa inenga.

whiriwhiringa

Kei te whakamahia te ine pāmahana whiriwhiringa ngaru poto mō ngā inenga tiketike pāmahana (> 500 ° C) me ngā tātari roangaru roa mō pāmahana iti (-40 ° C). pūhohe silicon, hei tauira, ki te ātete te wera, ka whakaiti te roangaru iti te hapa inenga. E whakamahia Ētahi atu whiriwhiringa whiriwhiri mo nga kiriata kirihou (3.43 microns me 7.9 microns), karaihe (5.1 microns) me te mura (3.8 microns).

pūoko

Te nuinga o pūoko ngaohiko whakaputa pūaho ā, ka waiho i raro ki te IR radiation, photoconductive ranei, ranei t. Ka huri E. tona ātete i raro i te mahi o te puna pūngao. He nohopuku, tino tairongo ratou, i te tere pāmahana manakohia, e ai kia hinga, mo te tauira, thermistor pāmahana utu haaati, he kore taiawhio aunoa, me tīwera whāiti tiaki isothermal.

Te ine pāmahana mekameka IR e pā ana ki 100-1000 mV pūoko putanga tohu ko te whakarei mano-puninga te whakaritea, he linearized, a, rite ki te hua, tohu he tohu o nāianei ngaohiko ranei rārangi. Ko tōna uara tino arotau o 4-20 mA, ki te whakaiti pokanoa waho. Ka taea te whangai i tēnei tohu ki te RS-232 tauranga ranei ki te kaiwhakahaere PID, whakaatu mamao pūrere tuhi ranei. whakamahi Ētahi atu taatou tohu:

• i runga i / atu tohu;
• uara mau tihi;
• wa whakautu te whakarite;
• he tauira me te mau ara iahiko.

tere

ine pāmahana taiaho Pōkākā he wa whakautu toharite o 300 ms, ahakoa e taea te whakamahi o pūhohe silicon tae te uara o te 10 ms. I roto i te maha mea Response huringa wā ki te rāwa haruru taumai a whakatika i te tūtohutanga. Ehara i Me tonu te wa whakautu iti. Hei tauira, i roto i te wa whakawera whakauru, kia i te whānuitanga o 10-50 ms.

Āhuatanga o inepāmahana taiaho

Etekcity Lasergrip 630 - 2 taiaho pōkākā utu ine pāmahana o $ 35.99. āhuatanga:

• whānuitanga pāmahana -50 ... +580 ° C;
• tika +/- 2%;
• tawhiti ki te wahi ōwehenga rahi o 16: 1;
• emissivity o 0.1 - 1.0;
• wā whakautu <500 ms;
• taumira o 1 ° C.

Taiaho ine (pikitia) whakamōhio hoki e pā ana ki te, te pāmahana iti me te toharite nui rawa. neke ana te wahi ruri e 2 cm i raro i te wāhi whai. Taiaho ngā atu ïa i te pūtahitanga o hihi (36 cm).

Amprobe IR-710 - pōkākā ine pāmahana taiaho, te utu ko $ 49,95. āhuatanga:

• whānuitanga pāmahana -50 ... +538 ° C;
• rahi wahi iti 20 mm o;
• tika +/- 2%;
• tawhiti ki te wahi ōwehenga rahi o 12: 1;
• emissivity o 0,95;
• te wa whakautu o 500 ms;
• taumira o 1 ° C.

Tenei ine pāmahana taiaho (whakaahua) atu atu i te pāmahana o nāianei, te reira tohu hoki te iti me ngā uara mōrahi.