DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
3A50.00 | Damped Oscillators | | |
3A50.10 | dash pot | PIRA 500 | |
3A50.10 | dash pot | 3A50.10 | A mass on a spring has a paddle that can be placed in water for damping. |
3A50.10 | dash pot | Mx-9 | A mass on a spring has an attached dash pot for critical damping. |
3A50.10 | dash pot | 15-2.2 | Three identical masses on springs with different size vanes in water provide under, over, and critically damped oscillations. |
3A50.20 | damped SHM tracer | PIRA 1000 | |
3A50.20 | damped SHM tracer | 3A50.20 | A mass on a spring holds a magic marker that traces on paper the instructor pulls off a roll. |
3A50.40 | double spring damped air cart | 11-1.8 | A long spring is attached to each end of the air track. Magnets are used for damping. |
3A50.42 | small air track oscillator | AJP 51(10)954 | A small specially constructed air track and optoelectric transducer provide output of position vs. time. Details of circuit and description of air track construction are included. |
3A50.45 | oscillating guillotine | PIRA 1000 | |
3A50.45 | oscillating guillotine | 3A50.45 | Sets of magnets provide variable damping of an oscillating aluminum sheet. |
3A50.50 | bouncing magnets | TPT 20(3),188 | Magnets are levitated on a rod. A large area photocell is used to detect the position of the levitated magnet as it oscillates. |
3A50.60 | tuning fork | 15-2.1 | Display tuning fork vibrations on an oscilloscope. Modeling clay between the forks increases damping. |
3A50.65 | steel bar | 15-2.4 | Apparatus to displace a small steel bar and pick up the vibrations electromagnetically for display on an oscilloscope. |
3A50.70 | ship stabilizer | 15-2.3 | A rocking closed circuit "U" tube half filled with colored water has a rubber hose and tube clamp for adjusting the damping. Demonstrates a ship stabilizing system |
3A50.75 | water balloon oscillator | AJP 30(9),654 | Two balloons full of water are mounted on the ends of a glass tube. Flatten one balloon and the system will oscillate about six times. |
3A50.90 | analog computer simulation | 15-9.7 | Simulating an automobile suspension system with an analog computer. |