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  2. Wheatstone bridge - Wikipedia

    en.wikipedia.org/wiki/Wheatstone_bridge

    The Wheatstone bridge was invented by Samuel Hunter Christie (sometimes spelled "Christy") in 1833 and improved and popularized by Sir Charles Wheatstone in 1843. [2] One of the Wheatstone bridge's initial uses was for soil analysis and comparison.

  3. Charles Wheatstone - Wikipedia

    en.wikipedia.org/wiki/Charles_Wheatstone

    Sir Charles Wheatstone (/ ˈ w iː t s t ə n /; [1] 6 February 1802 – 19 October 1875) was an English physicist and inventor best known for his contributions to the development of the Wheatstone bridge, originally invented by Samuel Hunter Christie, which is used to measure an unknown electrical resistance, and as a major figure in the development of telegraphy.

  4. Samuel Hunter Christie - Wikipedia

    en.wikipedia.org/wiki/Samuel_Hunter_Christie

    However, the method went unrecognised until 1843, when Charles Wheatstone proposed it, in another paper [3] for the Royal Society, for measuring resistance in electrical circuits. Although Wheatstone presented it as Christie's invention, it is his name, rather than Christie's, that is now associated with the device.

  5. Timeline of electrical and electronic engineering - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_electrical_and...

    English physicist Samuel Hunter Christie invented the Wheatstone bridge (It is named after Charles Wheatstone who popularized it). 1836: Irish priest (and later scientist) Nicholas Callan invented the transformer in Ireland. 1837: English scientist Edward Davy invented the electric relay. 1839: French scientist Edmond Becquerel discovered the ...

  6. Bridge circuit - Wikipedia

    en.wikipedia.org/wiki/Bridge_circuit

    Bridge circuits now find many applications, both linear and non-linear, including in instrumentation, filtering and power conversion. [1] [2] The best-known bridge circuit, the Wheatstone bridge, was invented by Samuel Hunter Christie and popularized by Charles Wheatstone, and is used for measuring resistance.

  7. Null detector - Wikipedia

    en.wikipedia.org/wiki/Null_Detector

    Wheatstone Bridge (1833, 1843): The Wheatstone bridge, invented by Samuel Hunter Christie in 1833 and popularized/improved by Sir Charles Wheatstone in 1843, was an early method for measuring electrical resistance. Early Wheatstone bridges used galvanometers, but their sensitivity and precision were limited by the galvanometer's electromotive ...

  8. Design for Maryland's new Key Bridge unveiled nearly a year ...

    www.aol.com/news/design-marylands-key-bridge...

    The Key Bridge was hit by the Dali on March 26, 2024, after the ship lost power. The collapse sent seven workers into the Patapsco River, killing six of them. Another worker was on a portion of ...

  9. Strain gauge - Wikipedia

    en.wikipedia.org/wiki/Strain_gauge

    Temperature effects on the lead wires can be cancelled by using a "3-wire bridge" or a "4-wire ohm circuit" [7] (also called a "4-wire Kelvin connection"). In any case it is a good engineering practice to keep the Wheatstone bridge voltage drive low enough to avoid the self heating of the strain gauge.