17 Techniques ues that are used to determine a better hand tool design are c hro
ID: 3506279 • Letter: 1
Question
17 Techniques ues that are used to determine a better hand tool design are c hronocy clegraphs, infrared photography, EMG, subjective appraisals, television, timing devices, and heart rate or metabolic rate measurements. Which of the following statements correspond to those techniques? Discuss the most appropriate use of each technique to a. Compare the path of tool movements to a proper path and to track speed changes over the movement path to assure the movements are smooth. b. Determine advantages of a tool design for skilled, precise movements. c. Determine speed advantages of one particular design. d. Determine activity levels in individual muscle bundles and assure that the distribution is proportional to the bundle size. e. Show near-surface blood flows so that the distribution of force to the hand is balanced and no extreme localizations occur. f. Assess the mechanical advantages during use. g. Estimate the relative energy expenditures with different tools. h. Describe the perceptions of ease of use. i. Estimate the relative loads on different members of the human body (e.g, fingers hands, arms, trunk, etc.). j. Define the population of users.Explanation / Answer
1.chronocyclegraph - it si the device which is used in micromotion studies which record the work by taking the still pictures.the cycle graph is genetrated where , a small electric bulb is attached to the finger, hand, or any other part of the body whose motion is to be recorded.
2.infrared photography- it is the image sensor which works on infrared light also known as “IR” photography. where the infrared spectrum is used the Wavelengths used for photography range from about 700 nm to about 900 nm.it is used to biological such as urine, blood and sperm can be visible and can be checked.
3. Electromyography (EMG)- it is used to diagnose the Muscle disorders, such as muscular dystrophy or polymyositis also the diseases affecting the connection betwwen the nerve and muscle,it is based on electrodiagnostic technique,where the activity is recorded of skeletal muscle called as electromyogram.
4.heart rate measurement- the devices used to calculate the heart rate are Sphygmomanometer, Stethoscope, they are used to hear the heart beats, intestinal movement, breath sounds, There are three different types of sphygmomanometers: mercury, aneroid, and digital all of them ate used to calculate the heart rate.
5.timing device- the device which is used for measuring time intervals in hours, minutes, seconds, and fractions of a second is called as timing device.eg clock,stop watch etc.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.