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Human Factors Engineering and Ergonomics, 3rd Edition
book

Human Factors Engineering and Ergonomics, 3rd Edition

by Stephen J. Guastello
April 2023
Intermediate to advanced content levelIntermediate to advanced
708 pages
24h 52m
English
CRC Press
Content preview from Human Factors Engineering and Ergonomics, 3rd Edition
Psychomotor skill and controls 249
There are four types of resistance. Static resistance gives the operator a bit
of a counterforce in the early milliseconds of operation, but operates freely
afterward. Elastic resistance feels like a spring- loaded knob; once the con-
trol has turned to a desired setting, it reverts to its initial position as soon as
the operator releases it.
Viscous resistance is proportional to the speed of motion. The dashpot
on a utility door allows the door to close at a preset speed once the user has
set it in motion. The objective is to prevent the noise or damage that could
arise from slamming the door or the operator’ ...
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Publisher Resources

ISBN: 9781000822045