PASCO ME-6694 TORSION PENDULUM - Manual (Page 7)

012–06339A Torsion Pendulum
3
5. Clamp the other end of the wire under the washer of the lower wire
clamp by tightening the thumbscrew firmly. Be sure that the
elbow of the bend in the wire fits snugly against the axle of the
thumbscrew (Figures 4a and 4b).
6. Adjust the height of the lower wire clamp
to about 18 inches below the shaft of the
RMS.
7. Align the guide of the upper wire clamp
with the slot of the shaft of the RMS. Slide
the upper wire clamp onto the shaft
(Figure 4).
8. Adjust height of the lower wire clamp as
necessary to position to top of the upper
wire clamp approximately half-way up
the shaft (Figure 5).
9. If necessary, adjust the lower wire clamp
so the wire is perpendicular to the table.
10. Recheck all screws on the clamps to be
sure each part is firmly secured.
a
Support Rod
lower wire clamp
(side view)
wire
thumbscrew
and washer
wire
b
lower wire clamp
(front view)
thumbscrew
and washer
Figure 4
Lateral (a) and front (b) views of attaching the bent wire to the lower clamp.
slot
upper wire
clamp guide
shaft of RMS
Support
Rod
Figure 5
Sliding the upper wire clamp onto the shaft of the Rotary
Motion Sensor