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demonstrations:3_oscillations_and_waves:glass_breaking:start
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demonstrations:3_oscillations_and_waves:glass_breaking:start [2019/02/14 23:33] 127.0.0.1 external edit |
demonstrations:3_oscillations_and_waves:glass_breaking:start [2020/03/02 22:12] (current) demoroom |
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| ====== Glass Breaking ====== | ====== Glass Breaking ====== | ||
| - | {{tag> needs_review untagged unlocated}} | + | {{tag> resonance sound untagged unlocated}} |
| <WRAP box right> | <WRAP box right> | ||
| Line 18: | Line 18: | ||
| Pre-demo setup to gather information: | Pre-demo setup to gather information: | ||
| - | 0. Use a sound meter and oscilloscope to get the average resonance frequency by tap/knock the wine glass. | + | 0. Use a sound meter and oscilloscope (or the Spectroid app) to get the average resonance frequency by tap/knock the wine glass. |
| 1. Use stand with ping pong ball to catch the vibration in the wine glass. (ball inside the inner glass wall is easier) | 1. Use stand with ping pong ball to catch the vibration in the wine glass. (ball inside the inner glass wall is easier) | ||
| 2. Put the wine glass on a Styrofoam plate/sheet to avoid vibration spread. | 2. Put the wine glass on a Styrofoam plate/sheet to avoid vibration spread. | ||
| Line 31: | Line 31: | ||
| 3. Different from the testing stage, you need use large amplification/volume. So set the frequency, turn the volume up, and bang! break. (Make sure you use the protective shielding cover.) | 3. Different from the testing stage, you need use large amplification/volume. So set the frequency, turn the volume up, and bang! break. (Make sure you use the protective shielding cover.) | ||
| - | Function Generator: Upper middle cabinet | + | Glass Thickness: Maximum 1.1mm, usually model Rona Slovakia 12 Oz bought from Pier 1 Imports, or Viv Red Wine 20oz glasses from Crate and Barrel. |
| - | Stand with ping pong ball: Yellow, Level 3 | + | |
| - | Horn Speaker: Blue, Level 4 | + | |
| - | Glass: Under the middle table (Preferably, resonance frequency in range 550-650 Hz) | + | |
| - | Amplifier: a) Bell Sound System: Red, Level 3. b) Black (larger) Amplifier: cart near your desk. If you are breaking a wine glass with resonance frequency below 550 Hz or above 650 Hz or the bell doesn't work, use the black amplifier. | + | |
| - | Protective Shielding Cover: Yellow, bottom | + | |
| - | Glass Thickness: Maximum 1.1mm, usually model Rona Slovakia 12 Oz bought from Pier 1 Imports. | + | |
demonstrations/3_oscillations_and_waves/glass_breaking/start.1550187203.txt.gz · Last modified: 2019/02/14 23:33 by 127.0.0.1
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