Principii de functionare (in functie de necesitati)
A. Pentru a se masura tensiuni continue si alternative (in serie cu instrumentul se aseaza rezistente aditionale adecvate) — pentru masurarea intensitatilor continue in paralel — (cu instrumentul se comuteaza sunturi diferite) — toate aceste marimi fiind eligibile pentru un comutator rotativ.
B. Masurarea factorului de amplificare (β) si a I C E O a tranzis- toarelor PNP si NPN de mica putere. Se realizeaza apasind pe clapeta T a claviaturii cu trei clape, dupa care se manevreaza butoanele aferente.
C. Masurarea emisiunii electronice a tuburilor electronice — se face prin inscrierea instrumentului in scris cu tubul de masurat, dupa ce in prealabil se apasa pe clapeta “C”.
DESCRIERE
Montajul e inchis intr-o cutie de lemn recuperata de la un patefon, avind in interior urmatoarele subansambluri montate pe > un panou de material plastic:
a) miliampermetru — deviatie totala 1 m A cu Ri de 250
b) transformator de retea alimentat la 220 V cu secundare pentru UF si UA — pe un miez de o suprafata de 10 cm.p.
c) un numar de 6 comutatoare — din care unul tip claviatura — fac posibila comutarea pe diferite domenii de masurare, oferind prin citire directa fie starea tuburilor electronice si a tranzistoarelor, fie a tensiunilor intensitatilor si a rezistentelor pina la 100 Kohmi.
d) un bec cu neon pune in evidenta continuitatea filamentelor tuburilor electronice.
e) Instrumentul s-a dovedit foarte util in cadrul activitati cercului de electronica aplicata in laboratorul de fizica al scolii.
This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Cookie settingsACCEPT
Privacy & Cookies Policy
Privacy Overview
This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.