섬유

measurements of conductivity and ph of liquid using surface acoustic wave devices

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 436
the use of a shear horizontal surface acoustic wave device in measurements of conductivity and ph of liquid is described. the device has two parallel saw delay lines fabricated on 36 degrees rot y cut x-prop. litao/sub 3/. the propagation surface of the one delay line is metallized but that of the other has no metallized area for an acoustoelectrical interaction with a liquid. the conductivity and ph of a liquid are measured by the differential signals of the both delay lines. some acid and alkali solutions are examined. the saw sensor is applied to the study of an enzyme-substrate reaction that shows the change in ph
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