Title of article :
A novel method for simultaneous readout of static bending and multimode resonance-frequency of microcantilever-based biochemical sensors
Author/Authors :
Andrzej Nieradka، نويسنده , , Konrad and Gotszalk، نويسنده , , Teodor Pawe? and Schroeder، نويسنده , , Grzegorz، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
4
From page :
172
To page :
175
Abstract :
We propose a novel method for simultaneous readout of static bending and multimode resonance-frequency of a microcantilever. The method, as opposed to the currently most common approach, requires no external excitation of microcantileverʹs vibrations. It utilizes intrinsic thermal Brownian noise of the microcantilever. It allows monitoring the frequencies of several flexural and torsional vibration modes simultaneously along with static bending and twisting in both gaseous and liquid environments. We have developed a complete measurement setup for investigating microcantilever-based sensors. The setup consists of a measurement head with optical detection system, a liquid cell with working volume of 100 μl, all homemade, and PC-based processing software. We report a successful application of proposed method and developed system to investigation of microcantilever-based sensors in gaseous and liquid environments, with achieved time and frequency (mass) resolution competitive to previously reported methods.
Keywords :
bending , resonance , Mass sensor , Cantilever sensor , Simultaneous readout , Stress sensor
Journal title :
Sensors and Actuators B: Chemical
Serial Year :
2012
Journal title :
Sensors and Actuators B: Chemical
Record number :
1440777
Link To Document :
بازگشت