A sensor is a device that produces
a measurable response to a change in a physical
condition, such as temperature or thermal
conductivity, or to a change in chemical concentration.
Sensors are particularly useful for making
in-situ measurements such as in industrial
Sensors - Motorola
Sensors are an important
part to any measurement and automation application.
The sensor is responsible for converting
some type of physical phenomenon into a
quantity measurable by a data acquisition
Factors to consider when
choosing a sensor.
- Accuracy - The
statistical variance about the exact reading.
- Calibration -
Required for most measuring systems since
their readings will drift over time.
- Sensors typically have temperature and/or
- Range - Limits
of measurement or the sensor.
- The variance in a sensor's reading when
a single condition is repeatedly measured.
- Resolution - The
smallest increment the sensor can detect.
Sensors are used to measure
basic physical phenomena including:
- Shock & Vibration.
/ Linear Position
- Spatial Presence