| 摘要 |
PURPOSE: A device for measuring mechanical energy by using a PC and a disposable article is provided to conveniently and easily perform a mechanical energy preservation experiment. CONSTITUTION: A stand(10) is vertically formed on the ground. A flow adjusting unit(30) discharges droplets of water discharged from a plastic bottle(20) and is combined with the bottom of the plastic bottle. A pair of electric contacts(40) detects the water dropped from the flow adjusting unit with an electric signal. A photo sensor unit(50) is installed between the electric contacts combined with the stand, included in plural photo sensors installed at regular intervals, and senses positions of the droplets. A computer(60) receives the electric signal outputted from the photo sensor unit to an interface(62) to calculate movement energy and position energy and store a program and data according to the same. |
