Accelerometer
part · 1920 · Electric age
An acceleration sensor; MEMS versions are found in phones and airbags.
Principles and materials it uses
- MEMS — uses. Modern accelerometers are MEMS devices.
- Newton’s laws — uses. The sensor measures the force of inertia.
- Silicon — is made of. Modern ones are silicon MEMS.
- Steel — is made of. Early ones were a steel mass on a spring.
Where it is used
- Airbag — is part of. The crash sensor is an accelerometer.
- Smartphone — is part of. The accelerometer rotates the screen.
- Fitness tracker — is part of. A pedometer.
- Electric unicycle — is part of. Tilt sensors.
What it is a kind of
- Sensor — is a kind of. A sensor.