Piezoresistive pressure sensors for various biomedical applications 1

The piezoresistive pressure sensor is a commonly used sensor in various biomedical applications, designed to measure and monitor pressure changes inside and outside the body. diode It operates based on the piezoresistive effect, which involves changes in resistance under mechanical stress. The DS2450S piezoresistive pressure sensor features advantages such as high sensitivity, fast response speed, and compact size, making it widely applicable for pressure measurement and monitoring tasks in the biomedical field.diode

The basic structure of a piezoresistive pressure sensor includes an elastic diaphragm and a pair of electrodes, with the diaphragm typically made of metal or semiconductor material. When subjected to external pressure, the diaphragm deforms, causing a change in the resistance between the electrodes. This change can be used to indirectly measure the magnitude of the pressure by detecting the variation in resistance.diode

In biomedical applications, piezoresistive pressure sensors are widely used in the following fields:

1. Blood Pressure Monitoring: Piezoresistive pressure sensors can be embedded in blood pressure monitors to measure changes in arterial blood pressure. When placed inside blood vessels or arteries, the sensor detects pressure exerted by blood flow, causing a change in its resistance value, which allows for blood pressure measurement.diode