- The first type of sensor is known as a passive sensor, since it does not emit energy of its own.
- The second type is known as an active sensor, since it projects energy and bounces it off the target object.
- Sensors utilize metrics to quantify their readings and data.
- Please also see AAB article: Ship Sensor Suite.
Computer Control Standards
Computer Controls: In almost all cases where the ship's computer can control a given ship function (gravity, doors, etc.), orders fed in at the central bridge computer take precedence over those fed in at local controls - this precedent is inherent in shipboard sensor systems. Only if the computer is inoperative will a computer override be ineffective. Some ships have been known to be built with a different system set-up, but this arrangement is commonplace on most vessels within Charted Space. 
- Passive EMS uses large antenna arrays to detect any radiation in the electromagnetic spectrum (EMS) from the target object, such as heat or radio waves, or naturally reflected light waves. It is an extremely sophisticated and precise passive sensor.
- High-Resolution Thermal (HRT) are sophisticated visual sensors, sensitive to infrared radiation.
- Densitometers are passive survey instruments which allow determination of celestial object mass and mapping of mineral deposits and gravitic anomalies.
- Neutrino sensors are passive sensors used when surveying a star system . They enable a ship to measure the intensity of fusion taking place within a star as well as determine if any of the gas giants are failed stars.
- Neural Activity Sensors (NAS) are extremely short-range passive sensors which detect and classify life forms according to their level of brain activity.
- Radar is an active sensor which bounces radio waves off target objects and then detects the returning echoes. Distance is determined by the time it takes for the echo to return. Doppler radar is used to determine if an object is moving.
- Ladar is a tight beam active sensor that bounces laser light off the target object and detects the reflection. As the laser can scan a very small area, it is used exclusively to lock onto a target after some other search sensor has located it.
- Active EMS is an active sensor incorporating a variety of active emitters and passive detectors covering most of the electromagnetic spectrum (EMS), making it a much more sophisticated version of radar.
Except for a few gifted sophont species, most NILs lack the bodily ability to sense more than a very limited part of the electromagnetic spectrum. As technology develops, particularly in relation to the construction of electronics in the TL:7-9 technological epoch, sophonts create sophisticated devices to sense that which their bodies cannot and translate that data into information that they can. 
Technological Overview of Sensory Devices
|This page uses content from Wikipedia. The original article was at List_of_sensors. The list of authors can be seen in the page history. The text of Wikipedia is available under the Commons Attribution-ShareAlike 3.0 Unported License.|
- Joe Fugate. Grand Survey (Digest Group Publications, 1986), TBD.
- Gary L. Thomas. The Travellers' Digest 03 (Digest Group Publications, 1985), TBD.
- Gary L. Thomas. "An overview of starship sensors." The Travellers' Digest 07 (1986): TBD.
- Rob Caswell, William W. Connors, Joe Fugate, Gary L. Thomas. Starship Operator's Manual (Digest Group Publications, 1988), TBD.
- Joe Fugate, J. Andrew Keith, Gary L. Thomas. World Builder's Handbook (Digest Group Publications, 1989), TBD.
- Frank Chadwick, Dave Nilsen. Traveller: The New Era (Game Designers Workshop, 1993), 346. (Main Rulebook)
- Frank Chadwick, Dave Nilsen. Fire, Fusion, & Steel (Game Designers Workshop, 1994), TBD.
- Marc Miller. T5 Core Rules (Far Future Enterprises, 2013), TBD.
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- Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science