Skip to main content

Modifying Geometry to Enhance the Performance of Microcantilever-Based Acoustic Sensors

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

This letter reports on a simplistic approach for significantly enhancing the mass sensitivity of microcantilever acoustic sensors by modifying the cantilever geometry. The approach involved modifying the geometry to minimize the effective mass at the free end of the microcantilever. Polystyrene beads were attached at specific locations and the resonant behavior and mass sensitivity was compared between geometries. Resonance behavior was assessed via the laser reflection method. Mass sensitivity was found to increase by nearly an order of magnitude for the new geometrical shapes over the rectangular geometry, which is the standard shape for microcantilever acoustic sensors. Triangular geometries yielded the best performance increase over the standard rectangular geometry; however a compromise was made to ensure there was sufficient area at the microcantilever free end to capture target species in frequency shift by mass addition applications.

Keywords: ACOUSTIC SENSOR; MASS SENSITIVITY; MICROCANTILEVER

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/sl.2009.1007

Publication date: February 1, 2009

More about this publication?
  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • ingentaconnect is not responsible for the content or availability of external websites
asp/senlet/2009/00000007/00000001/art00007
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more