EZ Digital OS-3060D Especificações descarregar pdf (Página 70)

-.3

Time Interval Measu rem

ent

The second most important measurem

ent

of the synchronous-sweep

oscilloscope is the very measurement of time interval.

Since the divisions unif

mly ma rked

the CRT screen are all

calibrated to the time bases. the time interval measurement is

prac

ticable,

(I)

Basic Tec

hniq

The basic technique for measuring time interval is described in this

section. In addition. characteristics measurement and variation

technique using this technique will be helpful. if you apply the

following procedure

I. Set up switches in the same

manne

r as that described in 2-2-4.

, Set the TIM E/DIV switch

] in such a manner as

make the

\\ aveforrn appear on CRT screen display as large as possible.

Tum the TIM E VARIABLE control [25J fully clockwise until being

clickstopped.

Otherwise you so do. the measured value will be

ina

ccurate. thus

requiring you to exercise due care.

3. Adjust the Vertical POSITION controls [17] and [18] and make the

waveform you wish to measure align with the central horizontal

graticule line.

. Turn the Horizontal Position control [26] and make the left side

the waveform correspond to the vertical graci tule line.

5. Count the

numbe

graticule divisions up to the point you intend

to measure. Horizontal central line is graduated in divisi

ranging to 0.2 division.

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 113 114

Sem comentários

EZ Digital OS-3060D Especificações Página 70