Analog Circuit Design Laboratory Report - MyWeb at WIT ...
Analog Circuit Design Laboratory Report - MyWeb at WIT ...
Analog Circuit Design Laboratory Report - MyWeb at WIT ...
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1851g 4 lbs. 19.74 mV<br />
2268g 5 lbs. 23.33 mV<br />
Table 1- Weight and Differential Voltage<br />
The Sensor Equ<strong>at</strong>ion calcul<strong>at</strong>ed from the end points of 0 and 5 lbs. was determined to be:<br />
V DIFF<br />
= ( 3.<br />
896mV<br />
Lbs<br />
) ∗W<br />
+ 3.<br />
84mV<br />
Eq. (19)<br />
The signal condition circuit (SCC) design was then graphed, see Figure 38. The SCC<br />
<strong>Design</strong> Equ<strong>at</strong>ion needed to signal condition the output of the load cell to produce the<br />
System Equ<strong>at</strong>ion was:<br />
Voltage Output (V)<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
0<br />
VO DIFF<br />
= 256. 54 ∗V<br />
− 985.<br />
1mV<br />
Eq. (20)<br />
SCC <strong>Design</strong> Equ<strong>at</strong>ion<br />
3.84 23.33<br />
Voltage Difference (mV)<br />
Figure 38- SCC <strong>Design</strong> Equ<strong>at</strong>ion<br />
45
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