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. Author manuscript; available in PMC: 2010 Apr 24.
Published in final edited form as: Sens Actuators B Chem. 2009 Apr 24;138(1):264–269. doi: 10.1016/j.snb.2009.01.052

Fig. 1.

Fig. 1

Two cantilever arrays form two diagonal-type Wheatstone bridges. Each cantilever has two electrical contacts. One of these contacts from all four cantilevers in one array are connected to a common bond pad. A voltage is applied across the common bond pads of the two arrays. Voltage changes due to surface stress of the cantilevers are monitored using the outputs Ain1 and Ain2 which are sent to the AD7792 analog-to-digital converter.