Barometric Pressure Measurement 

Capacitive pressure measurement

The Vaisala BAROCAP® Sensor combines two powerful techniques: the use of single crystal silicon as sensor material, and the capacitive measurement principle. Silicon offers good elasticity, low hysteresis, excellent repeatability, small temperature dependence and superior long-term stability. Thanks to the capacitive pressure sensor structure, the sensor has a wide dynamic range and a built-in overpressure blocking mechanism.

Applications

Vaisala’s barometers offer excellent performance in a variety of applications. In meteorology, barometric pressure is measured in weather stations, data buoys, GPS meteorology and other environmental data logging. In industry barometric pressure data is needed for pressure sensitive industrial equipment, such as laser interferometers and litography systems, aircraft applications and engine test benches. In controlled environment metrology, typical applications include laboratory pressure standard measurements and calibration laboratory monitoring.