Ukumelana thermometer: Incazelo partings nesiphambeko

Thermometer - idivayisi yakhelwe ukukala izinga lokushisa. Isimiso yokusebenza idivayisi wathi yakhelwe ukumelana kagesi of izinsimbi kanye Alloys ekhethiwe. I element eyinhloko ezishisayo bandgap Semiconductors. Abanye ochwepheshe ukubabiza thermistors.

Uma sicabangela thermocouple ejwayelekile, khona-ke has Resistor eyodwa kuphela. Wenziwe ngokuphelele wire lensimbi. Kwezinye izimo, kungase kube ifilimu. Platinum thermocouples njengamanje kubhekwe kakhulu. Lokhu kungenxa yokuthi i-metal has ezinhle ukumelana kuqhathaniswa lokushisa. Futhi, i-platinum has okusezingeni eliphezulu namachibi ukumelana. Reproducibility ka converters ezishisayo yalolu hlobo ukukhombisa kuqhathaniswa eliphezulu.

onobuhle yamanje zenziwa ephezulu msulwa-platinum. Kulokhu, lo Coefficient lokushisa metal kuyinto ezingeni of 0,003. Nokho, emakethe has a lot of kumadivayisi yethusi ne-nickel. Zonke Ukucaciswa kuthiwa bizela them by GOST. Imvamisa, uhlelo ukufana nesilinganiso kuholela lokushisa amabanga, ukunemba amakilasi futhi resistors ejwayelekile nokulutheka.

Two-wire ukuguqulwa

Ngomsebenzi wokugqokwa e konemimoya gaseous usebenzisa RTD ezimbili oluhlabayo. Ukushayela kudivayisi yakhe ulula. Engxenyeni engenhla kukhona isici abathola nge umqhubi. Yena uxhuma nge ingono. Ezansi kunjalo zikhona zokwenza izibopho futhi ikhebula. I iphutha okushisa sub-zero imifanekiso akuyona ezingaphezu kuka 0.3 degrees.

Ukubekezelelana GOST 6651 ukuhlela kabusha enjalo ezibhekwa uchungechunge A. Uma PT100 thermocouple, ukumelana, ukubeka izinga lokushisa ubuncane idivayisi itholakala esifundeni -60 degrees. Uma sikhuluma netimphawu teluhlakasimo lweSitatimende imodeli, kubalulekile ukuphawula ukuthi zenziwa kusukela abicah. Iziphetho, njengoba umthetho, kukhona ezimbili. Isiqophi efakiwe ngqo phambi emzimbeni.

Three-wire thermocouples

Three-wire resistive lokushisa uphelele medium ewuketshezi. Nokho, ukuhlela izinga lokushisa okungenani ngaleso onobuhle ngokwesilinganiso elilingana -30 degrees. Kubalulekile futhi ukuqaphela ukuthi iphutha ezindaweni nobutha lingafika ku 0.45 degrees. Iziphetho amadivayisi zalolu hlobo, kunezinhlobo ezimbili. yokwemukelwa Direct ngokuhambisana GOST 6651 Serie Inkomba izinga lokushisa okungenani ovumelekile nxazonke 230 degrees.

Uma sicabangela ukumelana thermocouple TC 1088 ke ukufakwa kwalo kokugcina obuphelele 100 mm. Uma sikhuluma nokulungiswa ikhanda esibulalayo, bese ukukhetha ezintathu. nokufakwa Avikelayo esetshenziswa ne 12x wokugubha. inertia Thermal lingafika angu-10. Ngakwelinye ihlangothi, ukushona esiphezulu ingcindezi okuzisholo elilingana okuyisilinganiso sabangu-6.2 Eng. Ukuqinisekisa ukumelana ezishisayo senziwa esebenzisa lokushisa calibrators.

kumadivayisi ezine-wire

Four-ezishisayo Converter resistances esidalelwe lokushisa nesilinganiso e medium ewuketshezi. Uma sikhuluma ukumelana iphutha, lokhu ipharamitha uyakwazi afinyelela 0.03 ohms. Kulokhu ukuzwela ivuliwe isilinganiso 33 microns. Uma sikhuluma zokuguqulwa ukubekezelelana A, izinga lokushisa okungenani lapho bekwazi ukusebenza - degrees 30 ngaphansi kwezingaqhwa. isici Okuzisholo kazibuthe kwesi-100 MB. nokufakwa Avikelayo e ukulungiswa eziningi lisetshenziswa 12x wokugubha.

Uma sicabangela TTP thermocouple ukumelana 105, esiphezulu izinga lokushisa kuyinto 230 degrees. I kuvunyelwe ukuphambuka umkhawulo elilingana ayibi ngaphezu kuka-0.15 T. Kubalulekile futhi ukwazi ukuthi lolu hlobo amadivayisi ayatholakala nge amakhanda esigungwini. Ukuba Wedwa wabo kuphela isicelo sobumba. Kulesi simo neziqeshana elifakwe phambi kwezindlu. Uma sikhuluma ukuzwela, kuba kulezi kumadivayisi ezingeqi kwezingu microns 32.

-platinum ukuguqulwa

Platinum RTD (RTSC) uyakwazi aziqhayise inkomba omuhle kakhulu inertia ezishisayo. Nokho, kulesi simo, kubalulekile acabangele nokubekezelela imodeli ngokuhambisana GOST 6651. Uma sicabangela ukuguqulwa uchungechunge A, kulesi simo isici okuzisholo static amadivaysi ingeqi 50 P. inertia Thermal e jika angu-10.

Ubuningi lokushisa RTD (-platinum), uchungechunge A, uyakwazi ngokudlulisela 240 degrees. Avikelayo fitting amamodeli kuvame kakhulu ukuba kusetshenziswe ne 12x wokugubha. Uma sicabanga ukubekezelelana Series RTD (GOST 6651), ukuthi unesikhathi okuzisholo static isici ipharamitha kulingana 100 P. inertia Thermal e jika imizuzwana 25.

amadivaysi Copper izilungiselelo zabo

RTD (ithusi) kuphela efanelekayo medium gaseous. Ukuguqulwa ipharamitha yephutha awafani. Into yokuqala okufanele icatshangelwe thermocouples nge ukubekezelelana Serie A. asetshenziswa ngisho at -50 degrees Bona. Nokho, uzwela awayona ezinhle kakhulu. Lokhu ipharamitha yisilinganiso sesifundo kungekho microns engaphezu kuka-34. Konke lokhu kubonisa ukuthi ezingeni lokushisa ngezansi 0 degrees ngesiphambeko isilinganiso ilingana 0.5 degrees.

inertia Thermal bazabela kuziwa 10 s. Kulokhu, esiphezulu kungenzeka lokushisa onobuhle kulingana 230 degrees. Ngakho-ke, ngeziphambeko umkhawulo kuziwa 0.12 T. Uma sikhuluma tesakhiwo, esibulalayo ngasekhanda yalolu hlobo Awekho onobuhle. I sealant elisetshenziswa ukucupha eziningi nge powder. Ngqo insulators eminingi evame ukusetshenziswa ezifana silicon. Uma sicabangela nokubekezelela thermocouples e chungechunge, banalo nozwela 40 microns. Konke lokhu kubonisa ukuthi ezingeni lokushisa ngezansi 0 degrees ukunemba ongafinyelela afinyelela ku 0.45 degrees.

Uma ucabangela netimphawu teluhlakasimo lweSitatimende ukulungiswa, kubalulekile ukuphawula ukuthi onobuhle eziningi anemisila amabhokisi esigungwini. Kulokhu, lo sealant sisetshenziswa ngezinga eliphakeme powder. Isiqophi efakiwe ngqo phambi emzimbeni. Ukuqinisa zokuzivikela uvame esetshenziswa ne 15X wokugubha.

nickel iyunithi

Ni thermocouple, ukumelana namuhla nomsebenzi omkhulu wokwakha. Lena ngokuyinhloko ngenxa yokuthi ukuthi onobuhle lenani eliphakeme pridelnyh ngeziphambeko kuvunyelwe. Futhi, ukulungiswa eziningi kungaba ozibongayo conductivity enhle kakhulu. Uma sicabanga idivayisi ukubekezelelana ngokuvumelana GOST 6651, uchungechunge A, kubalulekile ukuphawula ukuthi iphutha ipharamitha abazi idlule 0,23 degrees. Lokuchezuka umkhawulo, esikhundleni salokho, kuyinto ezingeni 0.12 T.

Okuzisholo static onobuhle izici isilinganiso siyizinsuku ezingu-30 P. Nokho, kubalulekile ukuba sicabangele ukuguqulwa ukufinyelela Series B. Corps zivikelwe futhi kukhawulwe lokushisa ebibanjelwe 230 degrees. Ubude ukukhweza amamodeli liphuza ka kungekho mm ezingaphezu kuka-100. Uma sikhuluma nemingcele eziyisisekelo, kubalulekile ukuphawula ukuthi nozwela Insimbi i isilinganiso microns 35. Umkhawulo ingcindezi okuzisholo uhlelo zigcinwe ngaso 6.6 Eng. Umngcele we inertia ezishisayo akukaze kube ngemizuzwana engaphezu kwengu-13.

High-izinga lokushisa onobuhle

lokushisa High thermocouple, ukumelana kungenziwa ekhiqizwa nge tolerances ezahlukene. Kuye izoshintsha amaphutha ipharamitha, kanye neminye imingcele kudivayisi. Uma sikhuluma ukufinyelela Serie A, lo thermocouples yalolu hlobo abe nengcindezi high bokuzisholo. Min amadivayisi ingasetshenziswa ezingeni lokushisa -30 degrees. Ezezindlu kulezi kumadivayisi avikelekile kahle kusuka uthuli. umkhawulo avumelekile iphutha sensimbi esingaphansi 0.12 T. ukuzwela bazabela kulingana 33 microns.

I okuzisholo isici kazibuthe lokushisa transducers 40 P. Nokho, kubalulekile ukuba sicabangele ukuguqulwa ukufinyelela Series B. Ngokusho GOST 6651 Inkomba ukuzwela bona ubophekile okungenani ngokulingana microns 20. Emazingeni ngenhla 0 degrees iphutha inkomba sensimbi esingaphansi 0,44 degrees.

Uma sikhuluma netimphawu teluhlakasimo lweSitatimende imodeli, terminals efakiwe kule phambi chassis. Shona elise ngokuqondile ngenhla kudivayisi. Sekukonke, kukhona iziphetho ezimbili. Kubalulekile futhi ukubalula ukuthi lolu hlobo thermocouples anemisila ukwahlukanisa sobumba.

Izici ukulungiswa ngwenya

Babecwiliswa thermocouple compulsorily ifakwe ebhokisini esigungwini. ikhebula umqhubi onobuhle eziningi kufihla igobolondo. I izibopho kulokhu wahlela izindlu aphansi. Ngqo kwemigomo umkhiqizo ezihlobene eduze uchungechunge lezivakashi Finyelela 6651. Nokho, kufanele kuphawulwe ngokushesha ukuthi thermocouple ukucwiliswa ingasetshenziswa ezindaweni nokhahlo. Uma sicabanga ukuguqulwa ukubekezelelana ka-Serie A, ukuzwela zedivayisi kulokhu esingaphansi 42 microns. Iphutha kulokhu elilingana 0.02 degrees. Nokho, kubalulekile ukukhumbula ukuthi izinga inertia ezishisayo ngeke idlule angu-10.

Okuzisholo static isici ngwenya kudivayisi 50 ngokuvumelana GOST P 6651. iziphetho Ubude ethulwa kukhona izinzwa ezimbili lokushisa. Kubalulekile futhi ukuba ucabangele isibonelo ngokufinyelela Series B. Eyokuqala Kuyaphawuleka sensitivity high kulungiselelwa - ezingeni 30 microns. Konke lokhu kwenza kube nokwenzeka ukuba sinciphise isiphambeko ithuluzi ukuze 0,023 degrees. Amazinga esiphezulu medium kuleli cala kumele singeqi 240 degrees. Ubude ukukhweza amamodeli liphuza 85 mm. nokufakwa ngqo zokuzivikela ezisetshenziswa nge 12x uphawu. ezishisayo inertia isikhashana inkomba thermocouples ingeqi imizuzwana 3.

Explosion-ubufakazi onobuhle

Thermometer yalolu hlobo yakhelwe usebenze endaweni gaseous. Kulokhu, izinhloko esibulalayo asetshenziswa nenyunyana. lokushisa Maximum amadivaysi labo abazokwazi withstanding at degrees 250. inertia Thermal Ihlobene ngokuseduze uchungechunge ukufinyelela amadivaysi. Nokho, kubalulekile ukuphawula ukuthi wonke amamodeli we esiphezulu ingcindezi okuzisholo inakekelwa ezingeni ka 6.7 Eng. Uma sicabanga amadivayisi ngokufinyelela Serie A, kubalulekile ukuphawula ukuthi iphutha ezingeni lokushisa ngenhla 0 degrees ilingana 0,035 degrees.

ikhanda Terminal ukucupha idatha setha engxenyeni engenhla izindlu. Ngqo okuzisholo isici kazibuthe thermocouples ingeqi 60 P. Umkhawulo standoff isilinganiso 0.20 T. Kubalulekile futhi ukuba ucabangele thermocouples ukufinyelela Series B. Iziphetho banayo ezintathu. Ngqo isicelo ukwahlukanisa uhlobo sobumba. Njengoba kushiwo ngaphambili, esiphezulu ingcindezi okuzisholo inakekelwa ezingeni ka 6.7 Eng. imodeli kungenziwa eziqhutshwa ezingeni lokushisa ubuncane -30 degrees.

ukuzwela yedivayisi esingaphansi 40 microns. Ukunemba ezingeni lokushisa ngenhla 0 degrees cishe 0,040 degrees. izici Okuzisholo static zedivayisi 40 P. I ukukhweza amamodeli abanalo ezingaphezu kuka-80 mm. Umngcele we inertia ezishisayo ku amadivayisi impela high. Nokho, kuvunyelwe umkhawulo ukuphambuka kulingana 0.33 T. kuphela

Ukunemba TSP-0196-01

Thermocouples PMT 0196-01 ukumelana ngoba uketshezi. Ukubekezelelana ngokuvumelana GOST 6651, anakho uchungechunge B. Okuncane kuma lokushisa ilingana -35 degrees. Okuzisholo isici static zedivayisi lingaphansi kuka-50 P. Uma sicabangela ukuguqulwa kanye namabhokisi esibulalayo, ubude ingxenye obandayo babe alinganayo 85 mm. Ukuvikelwa fitting imodeli isetshenziswa 13X wokugubha. Inkomba ithuluzi inertia ezishisayo isezingeni 15. Ngakwelinye lokushisa inkomba obuyisilinganiselo 240 degrees.

Allowable umkhawulo ngeziphambeko isilinganiso hhayi ningi than 0.15 T ezingeni lokushisa ngenhla 0 degrees thermocouple, RTD iphutha ukumelana 0196-01 unika 0,033 degrees. Ukucushwa ebhokisini ukugcina ifakwe imishini ezintathu. Kulokhu, element inzwa itholakala phambi kwezindlu. Izinto zokuvala umoya inikezwa ngqo ngumkhiqizi yohlobo sobumba. I sealant ungaphakathi ithuba isetshenziswa powder. Ngakho, leli cala is ngempela wavikela futhi namachibi metal kule imodeli, kuyaqabukela kube nezinkinga.

Model SCI-0196-02

SCI 0196-02 RTD yakhelwe ukusebenza e konemimoya ketshezi. It ahluke conductivity ezinhle, futhi okusezingeni eliphezulu esiphezulu lokushisa kulungiselelwa. Okokuqala, nokho, kufanele kuphawulwe ukuthi ukubekezelelana ngokuvumelana GOST 6651, anakho eziningi A. Kulokhu, inkomba uyalingana lokushisa okungenani -50 degrees.

Ukuze izifundo laboratory Ngokwesibonelo okufakiwe isetshenziswa kaningi. Emazingeni ngenhla 0 degrees ke lilingana iphutha hhayi ngaphezulu kuka 0,045 ama-degree. I okuzisholo isici static zedivayisi cishe 55 P. Ingxenye obandayo kule imodeli uyalingana 85 mm. Ngqo evikelwe nokufakwa esetshenziswa ne 12x wokugubha.

Sepharamitha lokushisa obuyisilinganiselo ngezithuba 250 degrees. Junction ibhokisi ekucushweni ngenhla engekho. iziphetho ezimbili nomkhiqizi enikeziwe. Izinkinga ziyoba khona kusukela namachibi we metal kuyinto ngempela ezingavamile, kusukela ukubekwa uphawu isetshenziswa nge powder. Izinto zokuvala umoya kuleli cala, kukhona okuthembekile.

Thermocouple, RTD-0196-06

Thermometer yalolu hlobo kuba zithandwa enkulu ekwakhekeni izinsimbi fusible. Kulokhu, lo efanelekayo zokuzivikela inikezwa 15X. yokwemukelwa Direct ngokuhambisana GOST 6651 imodeli has uchungechunge B. Okuncane lokushisa kuma ilingana -30 degrees. ukunakekelwa okukhethekile unikezwa okusezingeni uzwela kulungiselelwa. Nokho, kufanele kuphawulwe ukuthi ezingeni lokushisa ngenhla 0 degrees iphutha thermocouple ilingana 0,022 degrees.

Ubude ingxenye ukukhweza imodeli kuyinto mm 60 kuphela. inertia Thermal isezingeni emhlabeni 12 s. Umkhawulo lokushisa kuvunyelwe medium lapho idivaysi ingasetshenziswa, kulingana 240 degrees. ikhanda Terminal endaweni thermocouple esithize enikeziwe.