I. Kev tsim thiab xaiv kev txiav txim siab
- Temperature Range Compatibility
- Xyuas kom NTC qhov kub thiab txias ua haujlwm npog AC qhov chaw ib puag ncig (piv txwv li, -20 ° C txog 80 ° C) kom tsis txhob muaj kev ua haujlwm drift lossis kev puas tsuaj los ntawm kev txwv ntau dhau.
- Qhov tseeb thiab kev daws teeb meem
- Xaiv cov sensors siab (piv txwv li, ± 0.5 ° C lossis zoo dua) txhawm rau txhim kho qhov kub thiab txias. Kev daws teeb meem yuav tsum ua raws li qhov yuav tsum tau ua (piv txwv li, 0.1 ° C).
- Teb Sijhawm Optimization
- Ua ntej cov sensors uas tsis tshua muaj thermal lub sij hawm tsis tu ncua (piv txwv li, τ ≤10 vib nas this) kom muaj kev tawm tswv yim sai thiab tiv thaiv compressor cycling.
- Ntim thiab Durability
- Siv epoxy resin lossis iav encapsulation los tiv thaiv cov av noo, condensation, thiab tshuaj corrosion. Sab nraum chav tsev sensors yuav tsum tau raws li IP67 ntsuam xyuas.
II. Installation Position thiab Mechanical Design
- Xaiv qhov chaw
- Evaporator / Condenser Monitoring:Txuas ncaj qha rau ntawm qhov chaw coil, tsis txhob tso cua ncaj qha (piv txwv li,> 5 cm ntawm qhov cua).
- Rov qab cua kub:Nruab ntawm qhov nruab nrab ntawm cov ducts rov qab, kom deb ntawm cov cua sov / cua txias.
- Thermal Coupling
- Ruaj ntseg sensors nrog thermal roj los yog hlau clamps kom txo thermal kuj ntawm lub sensor thiab lub hom phiaj nto.
- Airflow Interference Mitigation
- Ntxiv airflow shields los yog siv probes nrog shielding los txo cov cua ceev los (tseem ceeb rau huab cua txias systems).
III. Circuit Court Design Guidelines
- Voltage Divider Parameters
- Match rub-up resistors rau NTC lub nominal tsis kam (piv txwv li, 10kΩ ntawm 25 ° C) kom ntseeg tau tias ADC input voltage poob rau hauv qhov muaj txiaj ntsig zoo (xws li 1V-3V).
- Linearization
- Siv qhov sib npaug Steinhart-Hart los yog piecewise lookup tables los them rau nonlinearity thiab txhim kho qhov tseeb.
- Kev tiv thaiv suab nrov
- Siv twisted-pair / shielded cables, txoj kev deb ntawm lub suab nrov (xws li, compressors), thiab ntxiv RC low-pass lim (piv txwv li, 10kΩ + 0.1μF).
IV. Environmental Adaptability
- Kev tiv thaiv dej noo
- foob sab nraum zoov sensors nrog potting tebchaw thiab siv waterproof connectors (xws li, M12 aviation plugs).
- Vibration Resistance
- Ruaj ntseg sensors nrog hloov tau yooj yim mounts (xws li, silicone pads) los tiv thaiv cov teeb meem kev sib cuag los ntawm compressor vibrations.
- Tiv thaiv plua plav
- Tsis tu ncua ntxuav sensors los yog siv tshem tawm cov kev tiv thaiv npog (xws li, hlau mesh).
V. Calibration thiab Maintenance
- Multi-Point Calibration
- Calibrate ntawm qhov kub thiab txias (piv txwv li, 0 ° C ice-dej sib tov, 25 ° C thermal chamber, 50 ° C roj da dej) los hais txog cov kev hloov pauv.
- Long-Term Stability Checks
- Ua qhov ntsuas qhov ntsuas txhua 2 xyoos txhawm rau txheeb xyuas qhov drift (xws li drift txhua xyoo ≤0.1 ° C).
- Fault Diagnostics
- Siv qhib / luv-circuit nrhiav kom pom thiab ua rau muaj kev ceeb toom (xws li, E1 yuam kev code) rau qhov txawv txav.
VI. Kev nyab xeeb thiab kev ua raws cai
- Cov ntawv pov thawj
- Xyuas kom ua raws li UL, CE, thiab RoHS cov qauv rau kev nyab xeeb thiab ib puag ncig.
- Kev ntsuas rwb thaiv tsev
- Txheeb xyuas cov kab hluav taws xob hluav taws xob tiv thaiv 1500V AC rau 1 feeb kom tsis txhob muaj kev pheej hmoo tawg.
Tej teeb meem thiab kev daws teeb meem
- Qhov teeb meem:Kev ncua sij hawm sensor teb ua rau compressor cycling.
Kev daws:Siv me me probes (qis τ) los yog optimize PID tswj algorithms. - Qhov teeb meem:Condensation-induced contact tsis ua hauj lwm.
Kev daws:Reposition sensors deb ntawm qhov chaw condensation los yog siv cov txheej txheem hydrophobic.
Los ntawm kev hais txog cov xwm txheej no, NTC sensors tuaj yeem ua kom ntseeg tau kev ua haujlwm hauv AC systems, txhim kho kev siv hluav taws xob (EER) thiab txuas ntxiv cov khoom siv.
Lub sij hawm xa tuaj: Plaub Hlis-25-2025