Psychology 2990A/B Chapter Notes - Chapter 8: Human Factors And Ergonomics, Engineering Psychology

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Published on 16 Apr 2013
School
Western University
Department
Psychology
Course
Psychology 2990A/B
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Chapter 8- Engineering psychology
Engineering psychology: design of machines and equipment for human use and the
determination of the appropriate human behaviours for the efficient operation of the
machines, the field is also called human factors human enginggering and ergonomics
Time-and-motion study: an early attempt to redesign work tools and to reshape the way
workers performed routine, repetitive jobs, of want to reduce the number of motions
required
Person-machine system: a system in which human and mechanical components operate
together to accomplish a task, human operator receives input on the status of the machine
from the displays, on the basis of this information, the operator regulates the equipment
by using the controls to initiate some action
Guidelines for efficient work: minimize distance, hands not idle
Allocating functions: each step of a movement is analyzed to determine its
characteristics the speed, accuracy, and frequency with which it is performed and the
stress under which it occurs
Application of time and motion: all tools should be place in order of which they are
used, should be easily picked up, and should be within reaching distance
Human anthropometry: a branch of engineering psych concerned with the
measurement of the physical structure of the body, complete sets of body measurements
have been compiled from a large sample of the population
Quantitative visual displays: displays that present a precise numerical value, such as
speed, altitude or temperature
Qualitative visual displays: displays that present a range rather than a precise numerical
value, they are frequently used to show whether components such as engine temperature
are operating in the safe or unsafe range
Check reading visual displays: displays that tell the operator whether the system is on
or off, safe or unsafe, or operating normally or abnormally, simplest of the displays
Auditory displays: alarms or warning signals in person-machine systems, auditory
displays can be more compelling than visual displays
Control-body matching: most controls activated by hands or feeds but hands are most
precise then using things like your thigh
Control-task compatibility: control actions should imitate the movement it produces
Shape coding: designing knobs for control panels in recognizably different shapes so
they can be identifies by touch alone
Cost of robot: typically one third that of average industrial employee and operate 24
hours a day 7 days a week without fatigue or error

Document Summary

Engineering psychology: design of machines and equipment for human use and the determination of the appropriate human behaviours for the efficient operation of the machines, the field is also called human factors human enginggering and ergonomics. Time-and-motion study: an early attempt to redesign work tools and to reshape the way workers performed routine, repetitive jobs, of want to reduce the number of motions required. Guidelines for efficient work: minimize distance, hands not idle. Allocating functions: each step of a movement is analyzed to determine its characteristics the speed, accuracy, and frequency with which it is performed and the stress under which it occurs. Application of time and motion: all tools should be place in order of which they are used, should be easily picked up, and should be within reaching distance.