Wheatstone bridge
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(Active participation, prizes available! ) The Wheatstone bridge is mentioned in the working principle of safety instrumentation devices, namely catalytic combustion-type combustible gas detection alarms. Don’t understand what a Wheatstone bridge is? (Explanation of Figures)
The Wheatstone bridge, perhaps with a different transliteration; check Baidu Baike at http://baike.baidu.com/view/682825.htm. It is used for the precise measurement of resistance.
It’s a balance bridge; when the resistance values at the two ends of the bridge are different, there is a corresponding output in the middle
There are many instruments that make use of the Wheatstone bridge, such as load cells, older types of electronic knitting needle meters, and devices for environmental temperature compensation