3.3 Sensor System Characterization The experiments in this section do not require any checkoffs; include them in your report. Observe and record the data where necessary. Include details of the experiments you have performed, analyze the results and draw your conclusions. Design and conduct some experiments to address the following: (a) How can you quantify the sensitivity of your accelerometer with or without the signal conditioning circuit? (b) What is the maxim um sensitivity you can achieve with your circuit? (cl If you use your potentiometer to replace a different resistor in your original circuit, how does it affect the sensitivity and why ? {d} At rest, the raw )(out voltages read by your ADC pin is noisy. By comparing the Xaxis values in horizontal and vertical positions , you can find the voltage deviations corresponding to a 1g change in acceleration. You can estimate the signalto-noise ratio {SNR) based on this. Does your amplifier circuit improve this SNR? Section 4: Detection and Classification of Motion {Checkoff4} In this final section, you will write a sketch that can distinguish between a circular motion and a reciprocating m otion li.e. backandforth linear motion}, and possibly computefdetect other aspects of these motions (like direction, frequency, etc.], using an accelerometer. There are no additional experiments required beyond the checkoff. However, this part is largely an experimental design of a detection algorithm. You will be performing a lot of experiments, gathering and analyzing data, and possibly trying several different approaches. Document them while you're designing the algorithm [even ifan approach didn't work) and present them in your report in detail. The movement of the accelerometer will only be limited to the horizontal plane. If your accelerometer is placed on the desk with Zaxis pointing upwards , then the )l and Yaxes are the only directions of interest. For reciprocating motion, you will m ove your breadboard with the accelerometer attached to it back and forth approximately in a straight line. This line can be along Xaxis, along Yaxis, or at any arbitrary angle. The motion can be slow, medium or fast. For circular movements, you will move the breadboard along a small circle (clockwise or counterclockwise), preferably at a steady angular velocity. While you're moving the breadboard, the X and Y axes should always point to the same direction [e.g. east and north, respectively). You may use the Xout and Yout values directly for your system .But if low sensitivity becomes an issue , you can use amplifier circuits (from Section 4} for both X and Y axes