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Volumn 84, Issue 23, 2004, Pages 4638-4640

Enhanced mass sensing using torsional and lateral resonances in microcantilevers

Author keywords

[No Author keywords available]

Indexed keywords

LATERAL MODES; MASS SENSING; MASS SENSITIVITY; MICROCANTILEVER TECHNOLOGY;

EID: 3042596280     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1759379     Document Type: Article
Times cited : (92)

References (22)
  • 8
    • 3042606417 scopus 로고    scopus 로고
    • note
    • NSC12 microcantilever dimensions: Length ∼315 μm, width ∼35 μm, thickness ∼2 μm.
  • 10
    • 84862391023 scopus 로고    scopus 로고
    • Borosilicate microspheres, purchased from Duke Scientific Corporation (Palo Alto, CA), have a certified mean diameter of 2 μm±0.5 μm, a standard deviation of 0.7 μm, a coefficient of variation of 35%, and a mass of approximately 10 pg. The microspheres were certified by a certificate of calibration traceable to the National Institute of Standards and Technology on October 10, 2001. www.dukescientific.com
  • 11
    • 3042656732 scopus 로고    scopus 로고
    • note
    • 3, length = 316.06 μm, width varied linearly from fixed to free end 34-36.34 μm, thickness= 1.622 μm. The nominal spring constant for this cantilever is ∼0.2 N/m.
  • 12
    • 3042660370 scopus 로고    scopus 로고
    • note
    • The percent difference between experimental and FE results: First bending=0.6%, second bending=7.3%, first torsion=16.1%, third bending=0.6%, first lateral=4%.
  • 17
    • 3042608151 scopus 로고    scopus 로고
    • note
    • Note that the photodetector output is proportional not to the deflection, but rather the slope of the microcantilever at the laser spot location.
  • 18
    • 3042608149 scopus 로고    scopus 로고
    • note
    • A side experiment conducted demonstrated that the spectrum peaks magnitude vary by up to two to three times when a bare microcantilever is repeatedly removed and replaced in the AFM. This is due to inevitable variation in cantilever chip orientation and the position of the laser spot.
  • 19
    • 3042558144 scopus 로고    scopus 로고
    • note
    • The circle fit method calculates the Q factor of each mode based on the magnitude and phase of the response measured at all 1 Hz increments over the entire half magnitude bandwidth of the specific peak. It is significantly more accurate than the half-power method.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.