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工作原理压迫局部动脉的加压空气制止动脉搏动时的压力即为血液流动的压力。血压计就利用这一原理测量人体血压。血压计又称汞柱血压计,分0～260mmHg和0～300mmHg两种,外形又分台式、立式两种,其组成见图1。血压计工作原理见图2所示。未加压时,容器与玻璃管均通大气,两边液面处同一水平面。向容器加一压力P后,玻璃管b内的水银面即上升。设玻
How does it work? The pressure of the pressurized air that presses on the local artery to stop the pulse of the artery is the pressure of the blood flow. Sphygmomanometer uses this principle to measure human blood pressure. Sphygmomanometer, also known as mercury sphygmomanometer, divided into 0 ~ 260mmHg and 0 ~ 300mmHg two, the shape is sub-table, vertical two, the composition shown in Figure 1. Sphygmomanometer working principle shown in Figure 2. When not pressurized, the container and the glass tube are open to the atmosphere, the same level at both sides of the liquid level. After a pressure P is applied to the container, the mercury surface in the glass tube b rises. Set glass