Understanding the difference between absolute, gage and differential pressure

  • Patrick Niedenführ
  • October 2019

To select the right pressure sensor for a specific application besides the pressure range first of all the type of pressure measurement has to be considered. Pressure sensors measure a certain pressure in comparison to a reference pressure and can be divided into absolute, gage and differential devices. These terms will be explained on the basis of the piezoresistive pressure sensors of First Sensor.

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Four questions on using differential pressure sensors in HVAC systems

  • Patrick Niedenführ
  • February 2019

In practice, the measurement of flow data in HVAC (heating, ventilation, air-conditioning, cooling) systems asks a lot of the measurement technology used. In addition to temperature fluctuations, sensors are also exposed to a lot of dust.

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The Piezoresistive Effect and Measuring Pressure

  • Patrick Niedenführ
  • February 2019

Today, innovative sensor technologies provide you with the right pressure sensor for every measuring task. Not only can you choose between relative, absolute and differential pressure sensors that work with different reference values, modern pressure sensors also allow you to choose between different measuring principles based on different physical effects. Piezoelectric and piezoresistive effects are mainly used in modern pressure sensors. 

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How do MEMS inertial sensors work? An overview:

  • Dr. Thomas Frasch
  • November 2018

Measuring inclination, acceleration and vibration in a technical application requires high-precision inertial sensors: tiny MEMS (Micro Electromechanical Systems) based on single crystal silicon sensor elements and the latest micromechanical manufacturing processes. 

 

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What requirements must pressure sensors meet in HVAC?

  • Patrick Niedenführ
  • January 2018

HVAC systems require high-sensitivity pressure sensors to minimize energy costs and meet regulatory requirements.

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In this blog, we write about applications and current topics in sensor technology.

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