Answer Happy

1. 2. 3. Place the 50 gram weight on to the inner gimbol extension shaft at the motor end. Slacken the clamp screw to release the inner gimbol from the outer gimbol. Adjust the position of the 50 gram on the motor end inner gimbol extension shaft until the gyroscope is balanced about the Y-Y axis. Hold one of the extension bars so that the spin axis is horizontal whilst rotating the speed control clockwise until the required rotational speed of the gyroscope is achieved (typically maximum). Measure the rotational speed using the optical tachometer. Release the extension bar with the spin axis horizontal and if necessary adjust the position of the 50 gram balance weight so that the gyroscope remains horizontal and does not rotate about the Z-Z axis. Take hold of one of the extension bars and place a 150 gram weight on the rotor inner gimbol extension shaft at the 10cm mark release the extension bar with the spin axis horizontal and measure the period of precession and the direction of precession. Measure the gyroscope speed. Repeat the procedure at paragraph 5 above moving the weight to different distances from the vertical column. Take more readings by adding a second and then a third weight to the extension bar. If required, move the weights to the other extension bar and repeat the measurements. 4. 5. 6.