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A vintage 1970s "orange tube" Celestron C8 telescope. Celestron was the first large scale commercial manufacturer of the Schmidt-Cassegrain telescope, introducing its "C8" 8" diameter 2032 mm focal length, ƒ10 telescope in 1970. [7]
Clock drive mechanism in the pier of the German equatorial mount for the 8-inch refracting telescope at Aldershot Observatory.. In astronomy, a clock drive (also known as a sidereal drive or field rotator) is a motor-controlled mechanism used to move an equatorial mounted telescope along one axis to keep the aim in exact sync with the apparent motion of the fixed stars on the celestial sphere.
Nikon F with motor drive, 1971-1973 Konica FS-1, 1979, [1] successor FT-1 reached 2 fps, built to 1987 Canon EOS-1V, up to 10 fps, 2000–2008 Not to be confused with Motor controller . A motor drive , in the field of photography, is a powered film transport mechanism. [ 2 ]
The Yaskawa Electric Corporation (株式会社安川電機, Kabushiki-gaisha Yasukawa Denki) is a Japanese manufacturer of servos, motion controllers, AC motor drives, switches and industrial robots. Their Motoman robots are heavy duty industrial robots used in welding, packaging, assembly, coating, cutting, material handling and general ...
Insides of a slip-stick piezoelectric motor. Two piezoelectric crystals are visible that provide the mechanical torque. [1]A piezoelectric motor or piezo motor is a type of electric motor based on the change in shape of a piezoelectric material when an electric field is applied, as a consequence of the converse piezoelectric effect.
The former couple — who share kids Violet, 19, Seraphina, 15, and Samuel, 12 — were spotted out for a drive on Saturday morning, Dec. 7, after Garner, 52, picked up some fresh bagels.
In vector control, an AC induction or synchronous motor is controlled under all operating conditions like a separately excited DC motor. [21] That is, the AC motor behaves like a DC motor in which the field flux linkage and armature flux linkage created by the respective field and armature (or torque component) currents are orthogonally aligned such that, when torque is controlled, the field ...
Family and friends have begun identifying the victims after a terrorist suspect plowed a rented truck into a crowd of jubilant New Year's Day celebrators in New Orleans.
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