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《Journal of Daqing Petroleum Institute》 1988-02
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He Zhen;He Liulian;Cao Wen Research Unit of Audio-visual Education Programme Editorial Department of Journal Teaching Unit of Physics  
Thesensibility of Wheatstone bridge depends on the sensibility of cure-rent detector, the voltage applied and the values of the resistance in th-arms. The former ones are limited by the equipment available. The later enaebles us to improve the sensibility by choosing the value of resistance. Wfind that the sensibility will be greatly improved, if we take R_1≈R_Xand a small value of R_2.
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