Answer Happy

The accelerometer is one of the essential inertial measurement units (IMU) in the smartphone. Suppose the 10bit ADC module gave us the following values for the three accelerometer channels (axes): AdcRx = 586, AdcRy =630, AdcRz = 561 a) Each ADC module will have a reference voltage Vref, let's assume in our question, it is 3.3V. What are the voltage values of these 3 channels (Please round all results to 2 decimal points) [3°)? b) Each accelerometer has a zero-g voltage level, you can find it in specs, this is the voltage that corresponds to Og. To get a signed voltage value, we need to calculate the shift from this level. Let's say our Og voltage level is VzeroG = 1.65V. Please calculate the voltage shifts from zero-g voltage for the 3 channels [3'). c) Accelerometer is used to detect the force for the three channels (axes). We already have our accelerometer readings in Volts in b), it's still not in g (9.8m/s?), to do the final conversion, we apply the accelerometer sensitivity, usually expressed in mV /8. Lets say our Sensitivity = 478.5mV /8 = 0.4785V/8. Sensitivity values can be found in accelerometer specifications. Please determine the final force values expressed in g for all 3 channels [3').