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MEMS pressure sensor

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MEMS (Micro-Electro-Mechanical Systems) pressure sensors are advanced devices used to measure pressure in various environments. These sensors integrate miniaturized mechanical and electronic components on a silicon chip, providing a compact, precise and reliable solution for many industrial and commercial applications.

How MEMS Pressure Sensors Work

Principle of Operation

MEMS pressure sensors work on the principle of detecting mechanical variations and converting them into electrical signals. A typical sensor consists of a flexible membrane and integrated piezoresistive strain gauges. When pressure is applied, the membrane deforms, causing the resistance of the strain gauges to change. This variation is converted into an electrical signal proportional to the applied pressure.

Advantages of MEMS Technology

MEMS technology has several distinct advantages:

  • Miniaturization : MEMS sensors are very compact, allowing their integration into systems where space is limited.
  • Low Power Consumption : These sensors consume little power, which is ideal for wearable applications and battery-powered devices.
  • Mass Production : Mass manufacturing of MEMS devices reduces production costs, making these sensors more affordable.
  • Accuracy and Sensitivity : MEMS sensors provide high precision and sensitivity, essential for critical applications.

Applications of MEMS Pressure Sensors

MEMS pressure sensors are used in a variety of fields thanks to their advantageous characteristics. Here are some examples of applications:

  • Consumer Electronics : Used in smartphones and smartwatches for functions such as altitude detection and air pressure measurement.
  • Automotive : Measure pressure in tires, brake systems and engines, contributing to vehicle performance and safety.
  • Medical : Used in blood pressure monitoring equipment and respiratory devices for accurate and reliable measurements.
  • Aerospace : Measure pressure in flight control systems and engines, ensuring aircraft safety and efficiency.

Advantages of MEMS Pressure Sensors

MEMS pressure sensors have several advantages that distinguish them from other types of pressure sensors:

  • Compact and Lightweight : Their small size allows easy integration into portable devices and systems where space is limited.
  • Low Power Consumption : Ideal for applications requiring low power consumption, such as portable devices.
  • High Precision and Sensitivity : Offer very precise measurements and great sensitivity to pressure variations.
  • Economic Mass Production : MEMS technology allows mass production, including manufacturing costs.
  • Reliability and Durability : Designed to be sturdy and durable, they provide long life and stable performance.

Selection and Installation of MEMS Pressure Sensors

Selection criteria

When choosing a MEMS pressure sensor, several factors should be considered:

  • Pressure Range : Make sure the chosen sensor can measure the pressures specific to your application.
  • Media Compatibility : Verify that the sensor is compatible with the fluids or gases you wish to measure.
  • Environmental Conditions : Consider the temperature, humidity and possible presence of corrosive substances in the environment of use.
  • Accuracy and Sensitivity : Select a sensor whose accuracy and sensitivity specifications meet your requirements.

Equipment installation

To ensure optimal performance, correct installation of sensors is crucial. Here are a few tips :

  • Positioning : Install the sensor in a location where it can measure pressure without obstruction or interference.
  • Attachment : Use appropriate brackets to securely mount the sensor, preventing any vibration or movement that could affect the measurements.
  • Electrical Connections : Connect the sensor terminals to the measurement or control systems following the manufacturer's instructions, ensuring correct polarity and electrical specifications.
  • Calibration : Perform an initial calibration after installation and periodically to maintain measurement accuracy.
  • Function test : Check the correct operation of the sensor by comparing the measurements obtained with known reference values.


MEMS pressure sensors are indispensable tools for many industries. Their accuracy, reliability and ability to fit into compact systems make them a preferred choice for pressure measurement applications. By understanding how they work and selecting the right sensor for your specific needs, you can ensure accurate and reliable measurements, contributing to the efficiency and safety of your operations.

For more information on MEMS pressure sensors, please consult specialist manufacturers and explore the options available to meet your technical requirements.

What is this sensor?

A MEMS pressure sensor is a device that measures pressure using microelectromechanical systems integrated on a silicon chip. It is compact, precise and consumes little power, making it ideal for many applications.

How accurate is the sensor?

The accuracy of MEMS pressure sensors is typically very high, often in the range of ±0,1% to ±0,5% of full scale, making them distinctive for applications where high accuracy is essential.

What are the advantages of the sensor?

The advantages of MEMS pressure sensors include:

  • Compact and light
  • Faible consumption of energy
  • High precision and sensitivity
  • Economic mass production
  • Reliability and durability

How does the sensor work?

MEMS pressure sensors work by measuring the change in resistance caused by the deformation of a flexible membrane under the effect of pressure. This variation in resistance is converted into an electrical signal proportional to the applied pressure.

How to connect a sensor?

To connect a MEMS pressure sensor:

  1. Position the sensor in a suitable location.
  2. fix the sensor securely to avoid any vibration or movement.
  3. Connect the electrical terminals following the manufacturer's instructions, ensuring correct polarity and electrical specifications.
  4. Calibrate the sensor initially and periodically to maintain accuracy.
  5. Test proper functioning by comparing measurements with known reference values.