在水资源管理中,应用高性能仪表进行测量日趋广泛。伴随其发展起来的传感装置,对仪表的精度、长期稳定性和操作简便方面的要求越来越高。过去,要满足高精度压力测量领域这一高的要求,只能靠机械压力平衡来满足。虽然它们很可靠,但是这样的机械仪器是很难制造出来的,而且在操作简便方面, In water resources management, the application of high-performance instrumentation for measurement is becoming more widespread. With its development of sensing devices, the accuracy of the instrument, long-term stability and ease of operation requirements are higher and higher. In the past, to meet the high pressure measurement accuracy of this high demand, can only be satisfied by the mechanical pressure balance. Although they are reliable, but such mechanical equipment is difficult to manufacture, and in terms of ease of operation,