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- About Yokogawa:
- Research & Development:
- Virtual Museum of Measurement:
- 1. Standard AC Ammeter (DLS):
- 2. Recording Meter:
- 3. 200C Audio Oscillator:
- 4. N-3 Electromagnetic Oscillograph:
- 5. A Collection of Electric Meters:
- 6. Universal Galvanometer:
- 7. Electrostatic Voltmeter:
- 8. Edison's Incandescent Lamp and Lamp Power Meter:
- 9. Circuit Testers: Past and Present:
- 10. Illuminance Meters:
- 11. Admittance Bridge:
- 6. Wife of a Rice Shopkeeper (woodblock print):
- 7. La Fee Electricite (lithograph):
- 15. Large Screen Multimedia Presentation>
- From Battery Testers to Multimeters:
- Scientific Tools and Measuring Instruments Used as Teaching:
- Yokogawa and the Electromagnetic Oscillograph:
- Learning from the Smithsonian Institution:
- Hewlett-Packard's Contributions to Our Collection:
- 7. Electrostatic Voltmeter
7. Electrostatic Voltmeter
Based on the original design of Lord Kelvin. Employs a technique that is still used in most electrostatic voltmeters today (manufactured by JW Queen and Company around 1900 and donated to the Yokogawa Collection by the Smithsonian Institution)