Advantages Disadvantages Barometer sensor | Barometric sensor

This page covers advantages and disadvantages of Barometer sensor or Barometric sensor. It mentions Barometer sensor advantages and Barometric or Barometer sensor disadvantages.

Definition: The sensor device which measures pressure in order to determine altitude is known as barometer sensor. It is used in mobile phones and other electronic devices. The figure-1 depicts Barometric pressure sensor from Apogee Instruments.

Barometric or Barometer pressure sensor

SI unit of pressure is pascal. It can be expressed as follows.
1 Pa=1 N/m2
One pascal is equal to one newton of force uniformly distributed over 1 meter2 of surface. A pascal can be converted into other units using following equations.

pressure units

As there are different types of pressure sensors, the advantages and disadvantages vary with these types as mentioned below.
• Mercury pressure sensor
• Piezoelectric pressure sensor
• Piezoresistive pressure sensor
• Strain gauge pressure sensor
• Capacitive pressure sensor
• Optoelectronic etc.
Refer pressure sensor basics and types >> for more information.

Advantages of Barometer sensor | Disadvantages of Barometer sensor

Following are the advantages of Barometer sensor and disadvantages of Barometer sensor of various types.

force sensor type Advantages Disadvantages
Piezoelectric ➨It generates voltage proportional to velocity of crystal applied. Hence no local power source is needed.
➨As they are higher in impedance, stray voltages are picked up in connecting wires.
➨Crystal gets cracked if subjected to overstress.
piezoresistive ➨It is very thin and flexible in construction.
➨It uses inexpensive electronics.
➨It is readily available and can be customized.
➨It is light in weight.
➨It requires low power for its operation.
➨It has lower accuracy ( about +/-5% full scale) compare to load cell.
➨It requires calibration by user.
Strain gage (mechanical displacement into change in resistance) ➨No moving parts used
➨Smaller in size
➨requires calibration
Capacitive ➨It reduces interference from the signal.
➨Reduces voltage slightly and interfere with direct current flow.

Advantages and Disadvantages of other Sensor Types

Capacitive    Inductive    Photoelectric    Ultrasonic    Infrared    Motion    Biometric    Force    Humidity    Temperature    Light    Barometer    Sound    pH    Soil Moisture   

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