Apparatus for the detection of piezoelectric coupling
Lothar Frenkel · Journal of Research of the National Bureau of Standards Section C Engineering and Instrumentation · 1963
~n apparatus for the i~vestigation of the piezoelectric coupling in granular powders is desc:•l!)ed.The a ppar at us IS b ased on the method of Giebc and Schcibe but employs the senSIt Ive detectJOn an d r ecordll1g methods commonly e mployed in the stud y of nuclear quadrupole reso nan ces .Some sample r ecorder traces are shown.The traces indicate that t he app arat us is a workable quali tative tool with at least the possibility of some quantitative usefulness]