A pressure sensor is a device that measures the pressure of gases or liquids and converts it into an electrical signal. It’s commonly used in applications such as industrial automation, HVAC systems, automotive systems, medical devices, and weather monitoring.
- Measurement Range: Varies by model (e.g., from a few Pa to hundreds of MPa)
- Types: Gauge (relative to ambient), absolute (relative to vacuum), and differential (difference between two pressures)
- Output Signals: Analog (e.g., 0–5 V, 4–20 mA) or digital (e.g., I²C, SPI)
- Accuracy: Typically ±0.1% to ±1% of full scale
- Response Time: Fast response (milliseconds or less) for dynamic applications
- Construction: Includes a sensing diaphragm (metallic or silicon) and pressure-tight housing
- Compensation: Temperature compensated for stable readings across temperature ranges
- Sealings & Protection: Options for IP-rated housings (e.g., IP65–IP68), overload protection, and rugged designs
- Applications: Process control, refrigeration systems, automotive boost/engine monitoring, tire pressure systems, medical devices
