Figure 6 - Wing mirror and Strain gauge bar rigid connection
To calibrate the strain gauge bar it first had to be wired up correctly to the data acquisition hardware but before this the strain gauges were tested with a multi-meter and found to be standard 120Ω strain gauges. The wires were then connected up to a SCX1-1121 Font Panel as shown in Figure 7.
Figure 7 - Data acquisition front panel, Wheatstone bridge configuration
This setup created two full Wheatstone bridge circuits. One of which sensed the direct load applied, and the other sensed the moments applied. This configuration would therefore supply the desired output for which the loading applied could be related to.
The front panel was then connected to the data acquisition chassis, and the machine was switched on.
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