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在美国,不下40%的40岁以上的男子受到高血压病及与之有关的心血管症的折磨。致力于弄清和论证这些疾病,由于无法采取在试验动物体内置入体内监测器,来对其和血压进行长时间的精确测量而受到严重的阻碍,因而难于取得突破。本文将讨论的容性压力传感器能够克服目前所有的置入式传感器的缺点,并能实现对血压进行精确的、稳定的、长期的、压力测量。 目前,已有两种设计定型的容性压力传感器。一种是CPTⅠ,其灵敏度要比压阻压力传感器高出25倍。另一种是CPTⅡ,这是将一个微功耗双极型电路与传感器同做在一块硅片上,因而能输出周期受压力控制的低占空比脉冲。容性压力传感器的功
In the United States, no fewer than 40% of men over the age of 40 are afflicted with hypertension and its associated cardiovascular disease. Committed to clarifying and arguing that these diseases are severely hampered by the inability to take long-term, accurate measurements of blood pressure and pressure in vivo in vivo in test animals makes it difficult to achieve breakthroughs. The capacitive pressure transducers discussed in this paper can overcome the disadvantages of all current in-built sensors and enable accurate, stable, long-term, pressure measurements of blood pressure. At present, there are two capacitive pressure sensors that are designed and shaped. One is CPTⅠ, which is 25 times more sensitive than a piezoresistive pressure sensor. The other is the CPT II, which combines a micro-power bipolar circuit with a sensor on a single piece of silicon so that it can output low-duty-cycle pulsed with cycle-by-cycle pressure control. Capacitive pressure sensor work