Advanced Qualification · A-003 Measurements · A-003-004-003
Comment peut-on améliorer la précision d'un fréquencemètre?
- AEn utilisant un circuit logique plus lent
- BEn utilisant un circuit logique plus rapide
- CEn améliorant la précision de la réponse en fréquence
- DEn améliorant la précision de la base de temps
Correct answer: D — En améliorant la précision de la base de temps. Question tirée de la banque officielle d'ISDE.
Why
A frequency counter measures how many cycles occur within a specific time window, so its accuracy depends entirely on how precisely that window is defined. The full explanation — and one for every question — is in Pro.
Practise this section
Measurements is section A-003 of the Advanced exam: Measurements: meters, oscilloscopes, counters, signal generators, and what a reading actually tells you.
Drill A-003 — free, no account