本文介绍的压力换能器采用了涨丝结构,具有较高的灵敏度。其线性度、迟滞、重复性和精度均小于0.5％。稳定性高,连续监测24小时,基线未见漂移。失真度小,频率响应高。考虑到被测病人的绝对安全可靠,采用了内外隔离的装置,将应变栅部分和传压部分分离,主要性能指标已达到P23ID水平,本文还附有临床图谱。 This article describes the pressure transducer using a filament structure, with high sensitivity. Its linearity, hysteresis, repeatability and accuracy are less than 0.5%. High stability, continuous monitoring of 24 hours, no drift at baseline. Low distortion, high frequency response. Taking into account the absolute safety and reliability of the patient under test, the use of internal and external isolation device, the strain gage part and pressure transfer part of the separation, the main performance indicators have reached P23ID level, this article also attached to the clinical map.