MEMS and sensors

What is the processing called that combines information from accelerometers, gyroscopes, magnetometers and other sensors to determine orientation and motion more accurately?

  1. ABinning
  2. BATPG
  3. CSensor fusion
Show answer and explanation

Answer: C. Sensor fusion

Each sensor has weaknesses: gyroscope errors accumulate over time, accelerometers have trouble separating motion from gravity, and magnetometers are affected by nearby magnetic materials. Sensor fusion combines them so that each compensates for the others' weaknesses, determining orientation and motion accurately.

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More MEMS and sensors questions

  1. What is an advantage of MEMS oscillators, sometimes used instead of quartz crystals as clock sources?
  2. Which MEMS sensor measures flow rate using the fact that gas flow carries away heat from a heater?
  3. What is an advantage of RF MEMS switches, which switch RF signals by mechanically opening and closing contacts?
  4. Which temperature sensor uses the property that its electrical resistance changes greatly with temperature?
  5. Which is the most appropriate scale for the movable structures made by MEMS?