Kev siv tseem ceeb thiab kev ceev faj ntawm NTC thermistor

NTC sawv cev rau "Negative Temperature Coefficient". NTC thermistor yog cov resistors nrog qhov tsis zoo kub coefficient, uas txhais tau hais tias qhov tsis kam txo nrog qhov kub nce. Nws yog tsim los ntawm manganese, cobalt, npib tsib xee, tooj liab thiab lwm yam hlau oxides ua cov ntaub ntawv tseem ceeb los ntawm cov txheej txheem ceramic. Cov khoom siv hlau oxide no muaj cov khoom siv hluav taws xob vim tias lawv zoo ib yam li cov khoom siv semiconducting xws li germanium thiab silicon hauv txoj kev ua hluav taws xob. Cov hauv qab no yog cov lus qhia txog kev siv thiab lub hom phiaj ntawm NTC thermistor hauv Circuit Court.
Thaum NTC thermistor siv los ntsuas qhov ntsuas kub, saib xyuas lossis them nyiaj, feem ntau nws yog qhov tsim nyog los txuas cov resistor hauv series. Kev xaiv ntawm tus nqi kuj tuaj yeem txiav txim siab raws li qhov kub thiab txias qhov chaw uas yuav tsum tau kuaj xyuas thiab tus nqi ntawm cov dej ntws tam sim no. Feem ntau, ib qho resistor nrog tus nqi zoo ib yam li qhov kub thiab txias tsis kam ntawm NTC yuav txuas nrog hauv cov koob, thiab qhov tam sim no ntws los ntawm kev lees paub tias me me kom tsis txhob muaj cua sov rau nws tus kheej thiab cuam tshuam rau qhov ntsuas qhov tseeb.Qhov teeb meem pom tau yog ib feem. voltage ntawm NTC thermistor. Yog tias koj xav kom tau txais cov kab nkhaus ntau dua ntawm ib feem ntawm qhov hluav taws xob thiab qhov ntsuas kub, koj tuaj yeem siv cov hauv qab no:

Kev siv NTC thermistor

Raws li tus yam ntxwv ntawm qhov tsis zoo coefficient ntawm NTC thermistor, nws tau siv dav hauv cov xwm txheej hauv qab no:
1. Kev them nyiaj kub ntawm transistors, ICs, siv lead ua oscillators rau cov khoom siv sib txuas lus txawb.
2. Kev ntsuas kub rau cov roj teeb rov qab.
3. Kev them nyiaj kub kub rau LCD.
4. Kev them nyiaj kub thiab kev hnov ​​​​mob rau cov khoom siv hauv tsheb (CD, MD, tuner).
5. Kub them nyiaj rau ntau yam circuits.
6. Kev tiv thaiv ntawm inrush tam sim no nyob rau hauv switching fais fab mov thiab lub hwj chim Circuit Court.
Kev ceev faj rau kev siv NTC thermistor
1. Ua tib zoo saib xyuas qhov ua haujlwm kub ntawm NTC thermistor.
Tsis txhob siv NTC thermistor sab nraum qhov chaw ua haujlwm kub. Kev khiav hauj lwm kub ntawm φ5, φ7, φ9, thiab φ11 series yog -40 ~ + 150 ℃; Kev khiav hauj lwm kub ntawm φ13, φ15, thiab φ20 series yog -40 ~ + 200 ℃.
2. Thov nco ntsoov tias NTC thermistors yuav tsum tau siv raws li qhov ntsuas hluav taws xob.
Lub zog siab tshaj plaws ntawm txhua qhov tshwj xeeb yog: φ5-0.7W, φ7-1.2W, φ9-1.9W, φ11-2.3W, φ13-3W, φ15-3.5W, φ20-4W
3. Kev ceev faj rau kev siv nyob rau hauv qhov kub thiab txias ib puag ncig.
Yog tias NTC thermistor yuav tsum tau siv nyob rau hauv qhov kub thiab txias ib puag ncig, cov ntaub qhwv hom thermistor yuav tsum tau siv thiab qhov chaw kaw ntawm cov ntaub thaiv npog yuav tsum raug rau ib puag ncig (dej, noo noo), thiab qhov qhib ntawm lub plhaub. yuav tsis ncaj qha mus rau dej thiab chav.
4. Tsis tuaj yeem siv rau hauv cov pa phem, ua kua ib puag ncig.
Tsis txhob siv nws nyob rau hauv ib puag ncig corrosive gas los yog nyob rau hauv ib qho chaw uas nws yuav los rau hauv kev sib cuag nrog electrolytes, dej ntsev, acids, alkalis, thiab organic solvents.
5. Tiv thaiv cov xov hlau.
Tsis txhob overstretch thiab khoov cov xov hlau thiab tsis txhob siv ntau dhau kev vibration, poob siab thiab siab.
6. Khaws kom deb ntawm cov khoom siv hluav taws xob ua kom sov.
Tsis txhob txhim kho cov khoom siv hluav taws xob uas muaj cua sov nyob ib puag ncig lub hwj chim NTC thermistor, Nws raug nquahu kom siv cov khoom siv nrog cov hlau lead ntau dua ntawm qhov siab ntawm ko taw khoov, thiab siv NTC thermistor kom siab dua lwm yam khoom ntawm lub rooj tsav xwm hauv Circuit Court kom tsis txhob muaj cua sov. cuam ​​tshuam rau kev ua haujlwm li qub ntawm lwm cov khoom siv.