MATERIALS ENGINEERING CONCEPTS - Materials for Civil and Construction Engineers - page 50

f. Moisture content in a concrete masonry unit (percent)
g. Asphalt content in hot-mix asphalt (percent)
h. Specific gravity of wood
i. Distance between New York city and Los Angeles (miles)
j. Dimensions of a computer microchip (mm)
1.37 During calibration of an LVDT, the data shown in the accompanying
table were obtained. Using a spreadsheet program, plot the relation
between the micrometer reading and voltage. What is the linear
range of the LVDT? Determine the calibration factor of the LVDT by
obtaining the best fit line of the data within the linear range.

Micrometer Reading, Voltage, Micrometer Reading, Voltage,

inches Volts inches Volts

0.342 - 10.120 0.472 0.985

0.352 - 10.120 0.482 1.990

0.362 - 10.121 0.492 3.023

0.372 - 9.134 0.502 4.035

0.382 - 8.131 0.512 5.071

0.392 - 7.111 0.522 6.098

0.402 - 6.100 0.532 7.115

0.412 - 5.108 0.542 8.143

0.422 - 4.089 0.552 9.144

0.432 - 3.097 0.562 10.157

0.442 - 2.059 0.572 10.156

0.452 - 1.053 0.582 10.156

0.462 0

References

1.8

Ashby, M. F. and D. R. H. Jones. Engineering Materials: An Introduction to
Their Properties and Applications . New York: Pergamon Press, 1980.
Burati, J. L. and C. S. Hughes. Highway Materials Engineering, Module I:
Materials Control and Acceptance—Quality Assurance . Publication No.
FHWA-HI-90-004. Washington, DC: Federal Highway Administration,
1990.
Callister, W. D., Jr. Materials Science and Engineering—An Introduction.
6th ed. New York: John Wiley and Sons, 2003.
Dally. J. W. and W. F. Riley. Experimental Stress Analysis . 3d ed. New
York: McGraw-Hill, 1991.
Flinn, R. A. and P. K. Trojan. Engineering Materials and Their Applications .
3d ed. Boston, MA: Houghton Mifflin, 1986.