007 1007 figure 2402 stress results in composite

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Unformatted text preview: 0.990 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–557 VM238: Wheatstone Bridge Connection of Piezoresistors Overview Reference: M.-H. Bao, “Micro Mechanical Transducers: Pressure Sensors, Accelerometers and Gyroscopes”, Handbook of Sensors and Actuators, v.8, ch.5. Analysis Type(s): Static (ANTYPE = 1) Element Type(s): 2-D 8-Node Coupled-Field Solid (PLANE223) 2-D 8-Node Structural Solid (PLANE82) Input Listing: vm238.dat Test Case Four p-type silicon piezoresistors R1-R4 of length a and width b are placed on a silicon beam (Figure 238.1: “Piezoresistors on a Beam Problem Sketch”). The beam of length l and width w is oriented such that its length is in the <110> direction of silicon crystal. The resistors are connected to form a Wheatstone bridge (Figure 238.2: “Wheatstone Bridge Arrangement of Piezoresistors”) with a supply voltage Vs. The beam is subjected to a uniform pressure p in the X-direction. Determine the output voltage Vo of the Wheatstone bridge. Figure 238.1 Piezoresistors on a Beam Problem Sketch ...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

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