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Code breakers at Bletchley Park employed uniselectors driven by a continuously rotating motor rather than a series of pulses in the Colossus to cryptanalyse the German Lorenz ciphers. [ 1 ] In a uniselector, the stepping switch steps only along or around one axis, although several sets of contacts are often operated simultaneously.
Stepper motor with Adafruit Motor Shield drive circuit for use with Arduino. Stepper motor performance is strongly dependent on the driver circuit. Torque curves may be extended to greater speeds if the stator poles can be reversed more quickly, the limiting factor being a combination of the winding inductance. To overcome the inductance and ...
88 - Auxiliary Motor or Motor Generator; 89 - Line Switch; 90 - Regulating Device; 91 - Voltage Directional Relay; 92 - Voltage And Power Directional Relay; 93 - Field-Changing Contactor; 94 - Tripping or Trip-Free Relay; 95 – Trip Circuit Healthy; 96 – Transmitter; 97 – For specific applications where other numbers are not suitable
This code can be read by a controlling device, such as a microprocessor or microcontroller to determine the angle of the shaft, similar to an optical encoder. The absolute analog type produces a unique dual analog code that can be translated into an absolute angle of the shaft (by using a special algorithm [citation needed]).
Starbucks is officially changing its code of conduct and ending a longtime policy that permitted people to sit and stay at coffee shop locations without making a purchase.
Stepper is short for step-and-repeat camera. The stepper emerged in the late 1970s but did not become widespread until the 1980s. This was because it was replacing an earlier technology, the mask aligner. Aligners imaged the entire surface of a wafer at the same time, producing many chips in a single operation.