oscilloscope 123

8/6/2019 Oscilloscope 123

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Oscilloscope


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THE OSCILLOSCOPE- REVISION 1. WORK PRINCIPLE


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THE OSCILLOSCOPE- REVISION 1. WORK PRINCIPLE


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2. BLOCK SET-UPTHE OSCILLOSCOPE- REVISION


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THE OSCILLOSCOPE- REVISION 2. BLOCK SET-UP


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3. DESCRIPTION OF FRONTAL PANELTHE OSCILLOSCOPE- REVISION

U

t

1


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U

t

1


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2 3 4


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2 3 4


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5


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6


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7


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1) On theoscilloscopescreen the

waveshapeisobtained asin:

T

Requirements: Answer

Recognize the typeofthe

signal

Show theperiodofthe

signalon theoscillogram


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T


Find thepartitionsnumberappropriate to theperiod


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T

1 2 3 4 5 6 7 8


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IftheTIME/DIVswitch isintheposition asin thefigure,

calculate theperiodofthe

signal


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Calculate thefrequency f=1/T


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Find thepartitionsnumbers appropriate to the amplitude


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Ifthe VOLT/DIVswitch isin theposition asinthefigure,calculate themaximum valueofthevisualized tension.

V0=3.4 *0.5


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switch in theposition0,1 V/div

T=5ms,for theTIME/DIVswitch in

theposition0,5ms/div


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6) Compare theoscillograms andidentify which of thefollowing areidentical,whether the

positionsof switches are asbelow.


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OSCILLOGRAM 1 2 3 4

2 x 0,2=0,4V 2,5 x 2=5V 4 x 1 =4V 1 x 5=5V

5 x 1 =5ms 2,5 x 2=5ms(10 x 2) x 5=

100ms10 x 0,5=5ms


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8


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T

1 2 3 4 5 6 7 8

T= 8 div


Find thepartitions

number appropriate to the

period

4. APPLICATIONSTHE OSCILLOSCOPE- REVISION


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T

1 2 3 4 5 6 7 8

2

TIME / DIV



IftheTIME/DIVswitch is

in theposition asin the

figure,calculate the

periodofthesignal

T= 8 div x 2ms/div

= 16ms

T= 8 div


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T= 16ms

f= 1 / 16ms

f= 1 / 16 x 10-3f=62.5 Hz

f= 1 /T



Calculate thefrequency


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3

2

1



Find thepartitions

numbers appropriate tothe amplitude

A=3,4div3,4


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0.5



Ifthe VOLT/DIVswitch

isin theposition asinthefigure,calculate the

maximum valueofthevisualized tension.

3

2

1

3,4 Umax =3,4div x 0.5V/div= 1,7V


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Calculate the effectivevalueoftension.

Calculate the valueofthe tension vertex tovertex.

3

2

1

3,4 Uef = Umax/ 2= 1,7V/ 1,41

= 1,2V

Uvv =2 Umax=2 x 1,7V

=3,4V


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0.5

2

1




signal

IftheVOLT/DIVswitch isintheposition asin thefigure,

calculate the valueofthe

measuredcontinuoustension.

Continuoussignal

2) On thescreenofanoscilloscopeit isobtainedforma the waveshape as

in thefigure:

U =2div x 0.5V/div= 1 V

A=2div


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0.5


3) On thescreenofanoscilloscopeit isobtained the waveshape asin the

figure:



signal

IftheVOLT/DIVswitch isin

theposition asin thefigure,calculate the valueofthetension vertex to vertex.

Triangularsignal

U=

8di

v x0.5

V/di

v=4V


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2

TIME / DIV


4) On thescreenofanoscilloscopeit isobtained the waveshape asin the

figure:



signal

Ifthegradual adjustment of

the timebasisisin theposition asin thefigure,

calculate theimpulse

duration.

Rectangularsignal

X =4div x 2ms/div= 8 ms


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5) Draw theshapeoftheoscillogramcorresponding to thefollowing values:

Umax=0,4V,fortheVOLT/DIVswitch in theposition0,1 V/div

T=5ms,for theTIME/DIVswitch in theposition0,5ms/div

Umax =0,4V=>0,4V/(0,1 V/div) =4div

T=5ms=>5ms/(0,5ms/div) = 10div


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6) Compare theoscillograms andidentify which ofthefollowing areidentical

,whetherthepositionsof switches are asbelow.

OSCILOGRAMA 1 2 3 4

0,2V/div1 ms/div

1 2 3 42V/div

2ms/div1 V/div5ms/div

5V/div0,5ms/div

OSCILLOGRAM

2 x 0,2=0,4V 2,5 x 2=5V 4 x 1 =4V 1 x 5=5V

5 x 1 =5ms 2,5 x 2=5ms(10 x 2) x 5=

100ms10 x 0,5=5ms

Maximum tension

Period


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WORKSHEETTHE OSCILLOSCOPE- REVISION

oscilloscope 123

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