Constructing an Acceleration Graph: Voltage to Acceleration

[Jowin86]

Homework Statement

I have to sketch an acceleration vs time graph, i have the time, and voltage readouts from an accelerometer from two peaks recorded from an oscilloscope.

I have t1 = 109mS v1=23.45mV and t2= 250mS v2=5.9mV

Homework Equations

Unsure

The Attempt at a Solution

Im guessing that i have to convert the voltages into acceleration and then integrate twice to get displacement? Is that right? And if so how can i get from voltage to acceleration?

 

[mark726]

Hello,

To sketch an acceleration vs time graph, you will need to first convert the voltage readings into acceleration values. This can be done by using the sensitivity of the accelerometer, which is the change in output voltage for a given change in acceleration. Once you have the acceleration values, you can plot them against the corresponding time values to create the graph.

To convert voltage to acceleration, you can use the formula a = (V2-V1)/t, where V2 and V1 are the voltage values at two different time points and t is the time difference between them. In your case, you can use t1 and t2 as the time values and v1 and v2 as the voltage values.

After you have obtained the acceleration values, you can integrate them twice to get the displacement values. However, please note that this will only give you an estimate of the displacement and may not be completely accurate due to errors in the accelerometer readings.

I hope this helps. Let me know if you have any further questions.