FlickerSpec: LED Flicker Test

Smoking Chair Productions

Ukuthenga ngaphakathi nohlelo

Mayelana nalolu hlelo lokusebenza

Ama-LED akho akufanele akuphathe kabi. I-FlickerSpec iguqula ifoni yakho ibe yimitha yokufiphaza, iyilinganisela kumafreyimu angu-240 ngomzuzwana, bese iqhathanisa lokho ekutholayo nemikhawulo yokufiphaza eshicilelwe.

Yakhelwe onjiniyela, abaklami bokukhanyisa, abaphathi bezikhungo, nanoma ubani olandela ukucindezeleka kwamehlo ngaphansi kwama-LED.

LOKHO OKULINGANISAYO

Ukulinganisa Okusheshayo (mahhala, okungenamkhawulo)
Ukufunda Okubukhoma:
• Imvamisa Yokufiphaza Okukhulu ku-Hz
• I-Flicker Yephesenti (ukujula kokuguquguquka) kanye ne-Flicker Index
• Isilinganiso sesignali kuya komsindo kanye nesilinganiso sokuzethemba
• I-waveform yokukhanya okubukhoma kanye ne-spectrum ye-FFT
• Isilinganiso sohlaka esifinyelelwe

Ukulinganisa kwe-PstLM Yemizuzu Emi-3 (Pro)
Ukuthwebula kwe-tripod yokubhala ukufiphaza kwemvamisa ephansi:
• Ubunzima Bokufiphaza Kwesikhathi Esifushane (PstLM) nge-IEC TR 61547-1:2015, kokufiphaza kufika ku-90 Hz
• Uma kuqhathaniswa nomkhawulo we-PstLM ≤ 1.0 ocashunwe yi-EU Ecodesign 2019/2020 (PstLM kuphela; I-Ecodesign
nayo idinga i-SVM, ngale kwepayipi lekhamera yefoni ye-FlickerSpec engu-240 fps)
• I-LM flickermeter eyisampula engu-8x ehlolwe ngokumelene nawo wonke amavekhtha amahlanu e-IEC Table A.1
• Usizo lokulinganisa olusekelwe ekhamera, hhayi ithuluzi eliqinisekisiwe noma umphumela oqinisekisiwe

ISIGWEBO

I-FlickerSpec iyasebenza IEEE 1789-2015 Umkhuba Onconyiwe 1, izinga lobungozi obuphansi: ukuguqulwa kumele kuhlale
ngaphansi kwemvamisa engu-0.025 x ngaphansi kuka-90 Hz, kanye nemvamisa engaphansi kuka-0.08 x kusukela ku-90 Hz kuya ku-1250 Hz, lapho i-flicker ingakhawulelwe khona. Umkhawulo wephesenti owenziwe ngokwezifiso uyatholakala futhi usebenza ku-
ibheji, irekhodi eligciniwe kanye ne-PDF. Isinqumo sinezimo ezintathu: IYEHLULEKA lapho ukujula okulinganisiwe
kudlula umkhawulo, DLULA lapho ukuthwebula nohlaka kusekela, futhi Awukwazi ukuqinisekisa uma kungakwenzi.

AMADOKHUMENTI NEMIBIKO

Londoloza izilinganiso kumaseshini ngelebula lendawo, isithombe se-fixture, i-GPS namanothi. Thumela
ama-PDF okukala okukodwa noma isifinyezo seseshini, noma i-CSV. Imibiko iphethe isihloko senkampani yakho, isinqumo
ngezinga elijwayelekile kanye nomkhawulo ngemuva kwalo, ukungaqiniseki kokulinganisa kwangempela, i-spectrum ye-FFT, kanye ne-
reference yesitifiketi sokulinganisa. I-FlickerSpec iyithuluzi lokuhlola nokubhala imibhalo, hhayi ithuluzi lelebhu eliqinisekisiwe; ukuthi umbiko uyanelisa yini umhloli noma umlawuli othile kuyisinqumo sabo.

UKULINGANISA KUMAHHALA

Ngaphambi kokulinganisa, khomba ifoni yakho kuhlelo lokusebenza lwewebhu lokulinganisa oluhambisanayo lwamahhala kunoma iyiphi imonitha.

I-FlickerSpec iqinisekisa ukunemba kwemvamisa yayo ngokumelene nesignali eyaziwayo futhi ikhipha isitifiketi esinesitembu sesikhathi esisebenza izinsuku ezingama-30.

OKUNGAYIBONA NOKUNGAYIBONI

Ikhamera ye-240 fps inemikhawulo, futhi siyayisho. Le ndlela yenzelwe izifunda ze-50 Hz mains:
• 50 kanye ne-100 Hz (50 Hz mains) — ukujula kwemvamisa kanye nokuguquguquka
• 60 kanye ne-120 Hz (60 Hz mains, isibonelo iNyakatho Melika) — imvamisa evelele ingase ibonakale
, kodwa ukujula kanye nesinqumo kunemibandela ngoba i-240 fps iyi-multiple eqondile kokubili. Uhlelo lokusebenza lubika ukuthi alukwazi ukuqinisekisa ukuthi alukwazi yini ukusampula umjikelezo wonke.

• Ngaphezu kwe-120 Hz, kufaka phakathi ama-dimmer e-PWM kanye nabashayeli be-kHz — umkhawulokudonsa wekhamera wangaphandle
Ukujula nakho kuncike ekufakweni kohlaka: gcwalisa indawo oyithandayo ngokukhanya, noma ukuphathe njengomkhawulo ophansi
.

MAHHALA VS PRO

Mahhala, akukho akhawunti:
• Ukulinganisa Okusheshayo Okungenamkhawulo ngayo yonke i-metric eluhlaza, i-waveform ebukhoma kanye ne-spectrum ye-FFT
• Ukulinganisa kanye nokukhiqizwa kwesitifiketi

I-Pro — $49.99 kanye, akukho okubhaliselwe:
• Inkomba yengozi ye-IEEE 1789-2015 (IPASA / IYAHLULEKA / Ayikwazi ukuqinisekisa)
• Ukulinganisa kwe-PstLM kwemizuzu emi-3 ngokuqhathanisa umkhawulo we-PstLM
• Ukurekhoda kokulinganisa nge-GPS, izithombe, kanye namalebula endawo
• Imibiko ye-PDF yokulinganisa okukodwa kanye nesifinyezo seseshini, ukuthunyelwa kwe-CSV
• Ukuboniswa kwedokhumenti yesitifiketi sokulinganisa
• Isihloko sombiko esinegama lenkampani yakho kanye nelogo

IZICACISO ZOBUCHWEPHESHE

• Ukuthwebula kwe-Camera2 okukhawulelwe ngesivinini esiphezulu esingu-240 fps, ukukhanya kwe-ITU-R BT.709, ukuvezwa kanye nebhalansi emhlophe
ivaliwe ngesikhathi sokulinganisa
• Amazinga: IEEE 1789-2015 Umkhuba Onconyiwe 1, IEC TR 61547-1:2015 Isijobelelo A, IES TM-39-25,
Umthetho Wekhomishini (i-EU) 2019/2020
• Isitoreji esikudivayisi kuphela, akukho ifu, akukho i-akhawunti, akukho ukulandelela

Inqubomgomo Yobumfihlo: https://flickerspec.slick-engineering.workers.dev/privacy

Yini entsha

Improved measurement interpretation and documentation:

• IEEE 1789 results now distinguish PASS, FAIL and Can't confirm when capture coverage or framing cannot support a pass.
• Calibration now includes 144 Hz, 165 Hz and 240 Hz displays.
• Guidance and reports now explain 60/120 Hz camera-depth limitations and PstLM scope more precisely.
• Reliability and report-formatting fixes.