Lub cev Code ntawm Temperature Sensors
Kub sensors ua zoo li 'kub txhais lus' rau cov ntaub ntawv, ua haujlwm los ntawm kev ntes cov kev hloov ntawm cov khoom siv nrog kub. Kev tiv thaiv ntawm cov hlau tsis tu ncua nrog qhov kub thiab txias (qhov kub zoo coefficient), thaum cov khoom siv hluav taws xob pom qhov sib txawv (tsis zoo kub coefficient). Thermistors, raws li cov tswv cuab ntawm tsev neeg semiconductor, tshwj xeeb tshaj yog rhiab heev rau kev hloov pauv kub, nthuav tawm 3% -6% tsis kam hloov ib℃Celsius. Cov yam ntxwv no ua rau lawv 'microscope' rau kev ntsuas kub.
Lub Secrets rau Thermistor Ntsuas
Kev ntsuas lub thermistor yog zoo li 'kiv cov mem tes' ntawm qhov kub thiab txias, yuav tsum muaj peb kauj ruam meej:
Tsim lub Wheatstone Choj Circuit Court: Siv Wheatstone choj tus qauv ntsuas, qhov kev hloov pauv hloov pauv mus rau lub teeb liab voltage.
Kub Calibration: Sau cov ntaub ntawv siv tus nqi (piv txwv li, 10kΩ) ntawm 25℃los tsim kom muaj qhov kub thiab txias -kho tiv thaiv nkhaus.
Lub teeb liab Amplification: Siv lub ntsuas ntsuas ntsuas kom ua kom lub zog hloov pauv feeb ntawm 100-1000 zaug.
Peb Txoj Cai rau Kev Txhim Kho Kev Ruaj Ntseg
Koj puas xav hloov koj qhov ntsuas kub rau hauv 'kub yos hav zoov'? Sim cov txheej txheem no:
Kev xaiv cov ntaub ntawv: Xaiv cov ntaub ntawv NTC nrog tus nqi siab dua B (thermostat index), xws li 3950K, uas muaj 15% rhiab heev dua li 3435K.
Circuit Optimization: Siv qhov chaw tam sim no tsis tu ncua los ntawm qhov chaw qhov hluav taws xob tas li txhawm rau txo qhov yuam kev los ntawm tus kheej - cua sov.
Tus Qauv Tsim: Encapsulating lub thermistor nyob rau hauv lub thermally conductive alumina ceramic tuaj yeem txhim kho cov lus teb ceev los ntawm 40%.
