Users' Guide User guide

128 Induced Electromotive Force

GLX Set-Up

1. Connect the voltage probe to the GLX.

a) Connect the voltage probe to the voltage port on the left side of the

GLX.

b) If there are other sensors connected to the GLX, remove them.

2. Set the sampling rate to 200 Hz.

a) Press to return to the Home Screen.

b) Press to open the Sensors screen.

c) Press the down arrow key to highlight Sample Rate.

d) Press repeatedly to set the Sample Rate to 200 Hz.

3. Open the Graph display.

a) Press to return to the Home Screen.

b) Press to open the Graph display. The display will be automatically

set up to graph Voltage versus Time.

Data Collection

1. Hold the magnet about 2 cm above the coil.

2. Press ; drop the magnet through the coil; press again.

Analysis

1. Scale the Graph.

a) Press to automatically scale the Graph.

b) Press to enter Scale mode, press again to enter Move mode.

Use the left and right arrow keys in both modes to zoom in on the posi-

tive and negative peaks.

See page 16 for detailed instructions on using Move and Scale modes.

2. Find the area under the first peak.

a) Press to open the Tools menu; press to select the Area Tool.

F2 F2

Place the dashed box

around the first peak

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