3.2.2 Experimental instruments
JM-3 rotary inertia tester,General computer millisecond meter,steel cirque,steel disk,steel cylinder,wires,pulley,table clamp,weights.
Figure 3.2.1 is the schematic diagram of JM-3 moment of inertia tester.Its rotation system is mainly composed of a cruciform platform(as shown in Figure 3.2.2),the tower wheel(with the radius of 1.00 cm,1.50 cm,2.00 cm,2.50 cm,3.00 cm),and the shading slender rod.The two photoelectric gates connected with the general computer millisecond meter are fixed symmetrically on both sides of the rotating system.One side of the wire is twined around the tower wheel,while the other side of the wire is pulled toward the pulley horizontally.The weights attached to the wire are used to provide the external force.
Figure 3.2.1 JM-3 moment of inertia equipment(https://www.daowen.com)
1—Objective table;2—Shading slender rod;
3—Towel wheel;4—Photoelectric gate;
5—Pulley;6—Weight
Figure 3.2.2 Diagram of a cross objective table
