Modern electronic instrumentation and measurement techniques / Albert D. Helfrick, William D. Cooper. Helfrick, Albert D. Cooper, William David. Cooper, William David. Electronic instrumentation and measurement techniques. Electric measurements. Electric meters. Electronic measurements. Electronic instruments. TK275 .H45 1990 621.38154 19 HEM Rev. ed. of: Electronic instrumentation and measurement techniques / William David Cooper, Albert D. Helfrick. 3rd ed. c1985. Includes bibliographical references and index. Englewood Cliffs, N.J. : Prentice Hall, c1990. c1990. 1990 Text xii, 446 p. : eng