Science
Intensity, focus, Ch I/II, Dual, Add, physics homework help

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a)  set the brightness of the display

b)  The “Focus” is used to set the focus of the electronic beam. When you turn the wheel, the focus may be out of position (in front of or behind the display plane) and the image will be blurred.

c)  The “Invert” buttons are used to change the orientation of the signal voltage on a signal input connector. Negative voltages become positive, positive voltages become negative.

d)  In “Dual” mode (=two-channel-mode) the signals in channel 1 and 2 seem to be displayed on the screen at the same time. 

e)  If the “Add” button is pressed, the signals of both channels are added before they are displayed on the screen. The sum cannot only be used in ordinary operating modes but in “X-Y” mode, too.

f)  The “Volts/Div.” wheels amplify an input signal so that a division represents a certain voltage. A “division” is the distance between two lines of a square on the oscilloscope’s screen.

g) The “Y-Pos.” wheel determines the vertical image offset of both channels independently.


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nwdr (46)
Boston College

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