GP-1100 Atmosphere Pressure Sensor

The GP-1100 atmospheric pressure sensor is designed for high-precision measurement of atmospheric pressure in meteorological and environmental monitoring applications. The sensor incorporates a proprietary MEMS silicon resonant sensing element that provides excellent stability and high measurement accuracy.

At the core of the sensor is a resonant structure based on a tuning fork beam design. The resonant element operates through in-plane vibration and is excited electrostatically. Variations in atmospheric pressure cause small mechanical changes in the resonant structure, which directly affect the resonant frequency. This frequency is detected through capacitive sensing and converted into a stable frequency output using a closed-loop control circuit.

The frequency-based output provides a quasi-digital signal that is highly resistant to electrical noise and signal degradation over distance. Combined with its wide operating temperature range from -40°C to 80°C, the GP-1100 is suitable for long-term deployment in outdoor monitoring systems.

Typical applications include meteorological stations, environmental monitoring equipment, atmospheric data acquisition systems, and scientific instrumentation requiring stable and precise barometric pressure measurement.