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. It operates based on the piezoresistive effect, which involves changes in resistance under mechanical stress. The DS2450S piezoresistive pressure sensor boasts advantages such as high sensitivity, fast response time, and compact size, making it widely applicable in biomedical fields for pressure measurement and monitoring tasks.diode

The basic structure of a piezoresistive pressure sensor consists of an elastic diaphragm and a pair of electrodes. The diaphragm is typically made of metal or semiconductor materials. When subjected to external pressure, the diaphragm deforms, causing a change in the resistance between the electrodes. This change can be indirectly measured to determine the magnitude of the pressure.diode

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

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 as blood flows through, causing a change in its resistance value, which can then be used to measure blood pressure.diode