wheatstone bridge ??
Why I'm talking about 'Wheatstone bridge'?because this relate with my circuit and load cell sensor.
Wheatstone Bridge is a device for measuring electrical resistance. When the bridge is connected in an electrical circuit, part of the current flows to the object whose resistance is unknown, and part flows to the resistor of known resistance. If more current flows through one side of the circuit than the other, the galvanometer shows the difference. The sliding contact is then moved along the wire until current flows equally along both sides of the bridge and the galvanometer shows zero.
When the bridge is thus balanced, the unknown resistance is calculated by a formula. The formula is: X = RD'/D (X is the unknown resistance. R is the known resistance. D is the distance from the key to the right end of the meter stick. D' is the distance from the key to the left end.)
more information,visit these website
http://www.play-hookey.com/dc_theory/wheatstone_bridge.html
http://www.absorblearning.com/advancedphysics/demo/units/020202.html
http://www.citycollegiate.com/wheatstone_bridge.htm
http://www.cs.cmu.edu/~dst/E-Meter/wheatstone.html
Video about wheatsone bridge
When the bridge is thus balanced, the unknown resistance is calculated by a formula. The formula is: X = RD'/D (X is the unknown resistance. R is the known resistance. D is the distance from the key to the right end of the meter stick. D' is the distance from the key to the left end.)
more information,visit these website
http://www.play-hookey.com/dc_theory/wheatstone_bridge.html
http://www.absorblearning.com/advancedphysics/demo/units/020202.html
http://www.citycollegiate.com/wheatstone_bridge.htm
http://www.cs.cmu.edu/~dst/E-Meter/wheatstone.html
Video about wheatsone bridge
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