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Mischgerät (V-2 Guidance Computer)
Designed in 1941 by Helmut Hölzer, the Mischgerät (mixer device) was the first fully electronic computing device, used to implement Hölzer’s V-2 rocket stability control equation during powered flight. It differentiated the voltages from the ''Vertikant'' (yaw and roll) and ''Horizont'' (pitch) gyroscopes to sense the gyro platform's divergence from its original orientation in pitch, yaw and roll, - and more crucially derived the rate of divergence - and output amplified correcting voltages to the steering servos for the exhaust vanes and external rudders. Technical concepts tested with the smaller Aggregat#A5 (1938–1942), A5 research rocket included use of the Siemens Vertikant stability control system with rate gyros. This approach didn't scale well for the larger and higher performance V-2. From his previous glider ground speed indicator concept in the mid-1930s, Hölzer realized he could implement an electrical approximation of a stability control equation by processi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helmut Hölzer
Helmut Hoelzer was a Nazi Germany V-2 rocket engineer who was brought to the United States under Operation Paperclip. Hoelzer was the inventor and constructor of the world's first electronic analog computer. Life In October 1939, while working for the Telefunken electronics firm in Berlin, Hoelzer met with Ernst Steinhoff, Hermann Steuding, and Wernher von Braun regarding guide beams for a flying body.p. 107 In late 1940 at Peenemünde, Hoelzer was head of the guide beam divisionp. 140 (assistant Henry Otto Hirschler), which developed a guide-plane system which alternates a transmitted signal from two antennas a short distance apart, as well as a vacuum tube mixing device () which corrected for momentum that would perturb an object that had been moved back on-track.p. 104 By the fall of 1941, Hoelzer's "mixing device" was used to provide V-2 rocket rate measurement instead of rate gyros.p. 106 Then at the beginning of 1942, Hoelzer built an analog computer to calculate and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |