Kelvingenerator
Typisk Kelvingenerator opstilling.
Denne tegning ses i mange tidlige bøger og kan være den originale form af apparatet.
Kelvingeneratoren blev opfundet af den britiske videnskabsmand William Thomson (Lord Kelvin) i 1867.[1] Kelvingeneratoren er en slags elektrostatisk generator. Apparatet anvender faldende vanddråber til at generere elektrisk energi. En høj spændingsforskel dannes via elektrostatisk induktion mellem tværforbundne modsat ladede systemer. Kelvingeneratorens eneste anvendelse har været ved fysikuddannelse til at demonstrere elektrostatiske principper.
Kilder/referencer
- ^ The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science. Taylor & Francis. november 1867. s. 391-396.
Eksterne henvisninger
- Video demonstrating Kelvin water dropper in operation: "10, M.I.T. 8.02 Electricity & Magnetism, Spring [term] 2002". See the last 6 minutes of this video for operation of Kelvin water dropper. Printed material related to this video: See "MIT Open Courseware" website; specifically, assignment 4 of course 8.02, which is available here: http://ocw.mit.edu/OcwWeb/Physics/8-02Electricity-and-MagnetismSpring2002/DownloadthisCourse/index.htm .
- Youtube - Kelvin Water Dropper: Implementation and Explanation
- Youtube - Kelvin Water Dropper and How it Works
- Detailed description of device and how to build your own Kelvin water dropper.
- Lego Kelvin water dropper
Medier brugt på denne side
Kelvin water-dropper electrostatic generator.png
The Kelvin water dropper, an electrostatic generator invented by William Thomson, Lord Kelvin, in 1867, that works by dripping water. This drawing, appearing in many early textbooks before 1900, may be the original form of the apparatus. It consists of a water supply pipe (c, d, e) that drips two streams of water drops. Each stream falls through a cylindrical metal charging electrode (A, B) and then into a metal funnel (a, b), from which it drips to the floor. Each metal funnel is connected to the other stream's charging electrode, and to a Leyden jar capacitor (cylindrical objects sitting on ground), to store the charge.
The Kelvin water dropper, an electrostatic generator invented by William Thomson, Lord Kelvin, in 1867, that works by dripping water. This drawing, appearing in many early textbooks before 1900, may be the original form of the apparatus. It consists of a water supply pipe (c, d, e) that drips two streams of water drops. Each stream falls through a cylindrical metal charging electrode (A, B) and then into a metal funnel (a, b), from which it drips to the floor. Each metal funnel is connected to the other stream's charging electrode, and to a Leyden jar capacitor (cylindrical objects sitting on ground), to store the charge.
Kelvin water dropper.svg
Forfatter/Opretter: Cmglee, Licens: CC BY-SA 4.0
Principle of operation of a Kelvin water dropper drawn by CMG Lee.
Forfatter/Opretter: Cmglee, Licens: CC BY-SA 4.0
Principle of operation of a Kelvin water dropper drawn by CMG Lee.