Relative pressure sensors

Relative pressure sensors, also known as gauge pressure sensors measure the pressure of a fluid (liquid or gas) relative to the ambient atmospheric pressure. These sensors provide a pressure reading that reflects the difference between the internal pressure of the system being measured and the external atmospheric pressure surrounding the sensor.

Pressure sensors – ASTE Series

  • Pressure ranges from 1 mbar to 10 bar
  • Single 3V or 5 V supply
  • Small footprint, low profile

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Pressure sensors – AUAV Series

  • Differential pressure ranges from ±5 inH2O to ±30 inH2O
  • Supply voltage 3.3 VDC
  • High precision airspeed and altitude measurement

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Pressure sensors – DLHR Series

  • Pressure ranges from 0.5 inH2O to 60 inH2O
  • Low and variable supply voltage from 1.68V to 3.6V
  • Dual-Die Reference technology

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Pressure sensors – MLV Series

  • 1 inH2O to 150 psi pressure ranges
  • Excellent position sensitivity
  • 5V supply voltage

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Pressure sensors – ASTD Series

  • Pressure ranges from 1 mbar to 10 bar
  • Single 3V or 5 V supply
  • Small footprint, low profile

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Pressure sensors – ASSD Series

  • Pressure ranges from 200 mbar to 35 bar
  • 5V supply voltage
  • Rugged stainless steel isolated package

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Pressure sensors – ELVX Series

  • Pressure ranges from ±0.5 to ±60 inH2O
  • 3.3V or 5V supply voltage
  • PCB surface mount

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Pressure sensors – BLV Series

  • Pressure ranges from 1 to 30 inH2O
  • 0.9V to 1.8V supply voltage
  • 0.3% linearity

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Pressure sensors – BLVR Series

  • 1 to 30 inH2O pressure ranges
  • 1.8V to 3.3V supply voltage
  • Dual-Die Reference technology

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Features of relative pressure sensors:

Reference Point: The reference point for relative pressure sensors is the current atmospheric pressure, which means the sensor measures how much higher or lower the system’s pressure is compared to the atmospheric pressure.

Measurement: The sensor gives a reading that can be positive (indicating pressure above atmospheric pressure) or negative (indicating pressure below atmospheric pressure, often referred to as vacuum pressure).

Applications: Relative pressure sensors are commonly used in applications where the pressure is naturally influenced by atmospheric conditions, such as tire pressure monitoring, fluid level measurement in open tanks, and many industrial processes.

Example: Tire Pressure Monitoring: A relative pressure sensor in a car tire measures the pressure inside the tire relative to the surrounding atmospheric pressure, ensuring that the tire is inflated to the correct level for safe driving.

Relative pressure sensors are widely used in everyday and industrial applications where the pressure of a system needs to be measured in relation to the local atmospheric pressure, providing practical and relevant pressure data for many systems.

speedometer shows application areas for relative pressure sensors

High-precision sensors

Highest precision for lowest pressures, reliable MEMS pressure sensors.

Innovative technologies

Innovative CoBeam²™ technology and dual die technology.

Customised system solutions

Individual system solutions for perfect integration of measurement technology in sophisticated applications.

Comprehensive product range

Standard solutions on a modular product platform.