Multi-axis electronic motion generator

Details Multi-axis electronic motion generator Multi-axis electronic motion generator

1975-11-05

1978-04-11

Sloyan, Thomas J.

Boots, shoes, and leggings

214 1CM, 318569, 318625, 340347M, 340347SY, G05B 1918

Patent

active

040840832

ABSTRACT:
Apparatus for generating synchronized multi-axis intermittent motion utilizing electronic encoding, memory and a servo controlled positioning system. A plurality of mechanically independent slave shafts are positioned in response to the position of a rotatable master shaft. An analog transducer is attached to the master shaft providing an analog output signal which is fed through an analog-to-digital converter. A digital representation of the master shaft position is provided by the analog-to-digital converter. The digital indication of master shaft position is fed to a plurality of independent digital memory devices each of which provides, in response, a digital position signal indicative of the desired position of an associated slave shaft. The output of each independent digital memory device is fed to a digital-to-analog converter which provides an analog output representative of the desired slave shaft position. A servo controller positions the associated slave shaft in response to the analog signal. A translator can be utilized for combining the digital output of each memory with an analog position signal from a position transducer connected to the associated slave shaft and providing an analog difference or error signal which can be utilized for proper positioning of the slave shaft. A tachometer can be utilized in the slave shaft servo for providing speed feedback information. Other means for speed feedback can be employed either by deriving a speed signal from other parameters, related to speed, or by utilizing the characteristics of the prime mover itself for speed feedback.

REFERENCES:
patent: 3439346 (1969-04-01), McGee
patent: 3504362 (1970-03-01), Feldmann
patent: 3731301 (1973-05-01), Davis
patent: 3757188 (1973-09-01), Brewer et al.
patent: 3818301 (1974-06-01), Sindelar
patent: 3851330 (1974-11-01), Huber
patent: 3906194 (1975-09-01), Fairbairn
patent: 3918045 (1975-11-01), Morser et al.
patent: 3951271 (1976-04-01), Mette
Barker, "A Servo System for Digital Data Transmission," Proc. of the I.E.E., vol. 103, Jan. 1956, pp. 52-64.

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