PASCO ME-6694 TORSION PENDULUM - Manual (Page 10)

6
Torsion Pendulum 012–06339A
Part A: Determining the Torsional Spring Constants of the Wires (k)
Set Up the Equipment
1. Assemble the Torsion Pendulum and the RMS as directed on pages 2 and 3 of the manual,
using the 0.032 inch (diameter) wire.
2. Securely tie the Force Sensor to the large pulley of the 3-step pulley on the RMS with a
piece of sturdy string 0.5 m in length.
Set Up Science Workshop
1. Plug the digital plugs of the RMS into digital channels 1 & 2 on the computer interface
box.
2. Plug the DIN connector of the Force Sensor into analog channel 1 of the computer interface
box.
3. Turn on the interface box and start Science Workshop.
4. In the Setup Window, set up the RMS on digital channels 1 & 2 and the Force Sensor on
analog channel 1.
➤ Note: Refer to the RMS and Force Sensor manuals for more detailed
instructions on setting them up in Science Workshop.
5. Double-click the Force Sensor icon and set the sensitivity to Med (10X).
6. Click the Sampling Options button and set the sampling rate to 50/s.
7. Click and drag a Graph icon to the Force Sensor icon. Click the Statistics button and
select Curve Fit > Linear Fit from the pop-up menu. Size and move the Graph display
as is convenient.
8. Double-click the RMS icon and set Divisions/Rotation to 1440.
9. Click the x-axis input button ( ) on the Graph display and select Digital 1>
Angular Position (angPos) (This will set the input for the x-axis).