Sensor
1 Definition
Device or instrument suited (through physical/chemical interaction) to measure one or more properties of a Phenomenon and thus collect factual/objective data.
Notes
- Sensing is therefore a synonym for Observation (the Process).
- As by their definition, sensors perform sampling.
- Sensors used to obtain measurements must be calibrated and provide uncertainties.
Examples
Sources
- KCEO
2 Definition
Device which transmits an output signal in response to a physical input stimulus as voltage. In Earth observation a distinction between passives sensors, such as radiometers, and active sensors, such as radars, is common. Earth observation sensors – or instruments – are operated from different ground-/water-based, airborne, or spaceborne platforms.
Notes
Examples
Sources
- CEOS/WGISS/DSIG/GLOS
- CEOS EO Data Stewardship Glossary
- NESDIS Data Management Lexicon and Related Terms
Term Relationships