Photodetector

A photodetector is a device that detects electromagnetic radiation, such as visible light, ultraviolet radiation, or infrared radiation, and converts it into an electrical signal. In the context of space and astronautical engineering, photodetectors are used in various applications, such as remote sensing, imaging, and communication. Remote sensing satellites use photodetectors to capture images of the Earth's surface, which are then used for various purposes, such as weather forecasting, land use mapping, and disaster management. Imaging systems on spacecraft also use photodetectors to capture images of celestial objects, such as planets, stars, and galaxies. Photodetectors are also used in communication systems, such as laser communication systems, to receive and transmit data. In addition, photodetectors are used in scientific instruments, such as spectrometers, to measure the intensity and wavelength of electromagnetic radiation.
Your Previous Searches
Random Picks
  • EPIRB: An Emergency Position Indicating Radio Beacon (EPIRB) is a distress beacon used in emergency situations to transmit a signal to search and rescue services via satellite. It is designed to operate in extreme conditions and can be activated m ... Read More >>
  • Power And Thermal Control: Power and Thermal Control is a critical aspect of space and astronautical engineering that deals with the management of power and thermal energy in spacecraft and other space systems. It involves the design, development, and implementation ... Read More >>
  • Ball Valves: Ball valves are mechanical devices used to control the flow of fluids or gases in a pipeline. They consist of a spherical ball with a hole in the center that rotates within a valve body, allowing or blocking the flow of the fluid or gas. Ba ... Read More >>
Top News

Bestselling author explains the science of happiness: "You can do the work"...

Bestselling author and Harvard professor Arthur Brooks opens up about how enjoyment, satisfaction and meaning in life can increase a person's wellbeing....

News Source: CBS News on 2024-11-18

November's full moon, known as the Beaver Moon, is the last supermoon of 2024. H...

November's full moon, known as the Beaver Moon, is the last supermoon of 2024. Here's when it peaks and why it's called the Beaver Moon....

News Source: CBS News on 2024-11-15

You can't put a price on the sense of awe particle physics inspires...

Astronomy and particle physics are no longer seen as vital by the US establishment, so funding has fallen. But our work creates a sense of wonder, and wonder matters, says Chanda Prescod-Weinstein...

News Source: New Scientist on 2024-11-13

If you want to stretch your gift game into days this holiday, check out these ad...

The advent calendar phenomenon is growing every year, with so many exciting, fun, beautiful, and delicious options available...

News Source: ABC News on 2024-11-04

November brings a bonanza of meteor showers...

November brings a skywatching bonanza, with three meteor showers — the Southern Taurids, Northern Taurids and Orionids — offering chances to see shooting stars....

News Source: NBC News on 2024-11-02