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介绍了微功耗压力传感器光纤耦合的原理以及使用单光纤传输双路信号进行比值测量的方法．讨论了这些措施对测量系统的稳定性、漂移、噪声抑制、抗干扰等性能指标的改善．
This paper introduces the principle of fiber coupling of micro-power pressure sensor and the method of measuring the ratio by using single fiber to transmit two signals. The measures to improve the performance of measurement system such as stability, drift, noise suppression and anti-jamming are discussed.