【摘要】 在分析传统材料试验机中力测量模块电路的基础上,重点介绍了一种电桥传感器模数转换芯片AD7730的主要特点、结构和工作原理,及其在高精度材料试验机力测量器中的应用。实例证明,该芯片的使用大大简化了电路,提高了测量系统整体性能,同时也节省了空间。更多还原

【Abstract】 On the base of analyzing the force measuring module circuit of traditional material testing machine, this paper mainly introduces the primary characteristics, structure and working principle of a bridge transducer ADC AD7730,and its application to force measuring apparatus of a high precision material testing machine. An example proves that the use of this chip greatly simplifies the circuit, improves the whole performance of measuring system, and also saves spaces. Along with more reduction of its cost, this chip can be applied in various fields which need exact measures.更多还原