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  2. Apollo Lunar Module - Wikipedia

    en.wikipedia.org/wiki/Apollo_Lunar_Module

    The Apollo Lunar Module (LM / ˈ l ɛ m /), originally designated the Lunar Excursion Module (LEM), was the lunar lander spacecraft that was flown between lunar orbit and the Moon's surface during the United States' Apollo program. It was the first crewed spacecraft to operate exclusively in the airless vacuum of space, and remains the only ...

  3. Current sensing - Wikipedia

    en.wikipedia.org/wiki/Current_sensing

    Fluxgate sensors or saturable inductor current sensors work on the same measurement principle as Hall-effect-based current sensors: the magnetic field created by the primary current to be measured is detected by a specific sensing element. The design of the saturable inductor current sensor is similar to that of a closed-loop Hall-effect ...

  4. Thomas J. Kelly (aerospace engineer) - Wikipedia

    en.wikipedia.org/wiki/Thomas_J._Kelly_(aerospace...

    Kelly was promoted to lead the design team for the Lunar Excursion Module (LEM). He was in charge of more than 7,000 employees in design and building the Lunar Module. Kelly's group came up with the idea of a two-stage spacecraft (ascent & descent stage), that would take two astronauts to the Moon's surface while a third astronaut would stay in ...

  5. Apollo PGNCS - Wikipedia

    en.wikipedia.org/wiki/Apollo_PGNCS

    Apollo Command Module primary guidance system components Apollo Lunar Module primary guidance system components Apollo Inertial Measurement Unit. The Apollo primary guidance, navigation, and control system (PGNCS, pronounced pings) was a self-contained inertial guidance system that allowed Apollo spacecraft to carry out their missions when communications with Earth were interrupted, either as ...

  6. Premier Farnell - Wikipedia

    en.wikipedia.org/wiki/Premier_Farnell

    In 2010, the legacy brands of Premier Electronics, Farnell and Farnell-Newark were replaced by Farnell element14 in Europe, and by Newark element14 in the US. The name was taken from silicon, the 14th element in the Periodic Table, which is widely used in electronic components such as integrated circuits and discrete semiconductors. [18]

  7. Hall effect sensor - Wikipedia

    en.wikipedia.org/wiki/Hall_effect_sensor

    Hall effect current sensor with internal integrated circuit amplifier. 8 mm opening. Zero current output voltage is midway between the supply voltages that maintain a 4 to 8-volt differential. The non-zero current response is proportional to the voltage supplied and is linear to 60 amperes for this particular (25 A) device.

  8. Néel effect - Wikipedia

    en.wikipedia.org/wiki/Néel_effect

    An important application of the Néel effect is as a current sensor, measuring the magnetic field radiated by a conductor with a current; [3] this is the principle of Néel effect current sensors. [4] The Néel effect allows the accurate measurement of currents with very low-frequency-type sensors in a current transformer without contact.

  9. Lunar Landing Research Vehicle - Wikipedia

    en.wikipedia.org/wiki/Lunar_Landing_Research_Vehicle

    The Bell Aerosystems Lunar Landing Research Vehicle (LLRV, nicknamed the Flying Bedstead) [1] was a Project Apollo era program to build a simulator for the Moon landings.The LLRVs were used by the FRC, now known as the NASA Armstrong Flight Research Center, at Edwards Air Force Base, California, to study and analyze piloting techniques needed to fly and land the Apollo Lunar Module in the Moon ...