Sensor
In the context of space and astronautical engineering, a sensor is a device that detects and measures physical properties such as temperature, pressure, radiation, or electromagnetic fields. Sensors are used in spacecraft to monitor the environment, gather data, and provide feedback for control systems. They are also used in scientific instruments to study the properties of celestial bodies and their surroundings. Sensors can be passive or active, depending on whether they rely on external stimuli or emit their own signals. They can be single-purpose or multi-purpose, depending on the range of properties they can detect. Sensors can be designed to withstand the harsh conditions of space, such as extreme temperatures, vacuum, and radiation. They can also be designed to operate autonomously or be controlled remotely from Earth.
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