Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

problem 1: A 12-bit analog-to-digital converter (ADC) works over the range of -5 volts to + 5 volts. 
 
a) What is the voltage resolution of this converter?
 
b) Assuming -5 V is represented by 000 000 000 000 and +5 V is represented by 111 111 111 111, how would -4 V be represented?

problem 2: We want to measure a sinusoidal signal (frequency 100 Hz) expected to be of strength 1 mV RMS in the presence of noise of peak amplitude 3 mV. 
 
a) If our A/D converter has a range of +10 volts to -10 volts, what amplifier gain should be used to process the signal before the A/D conversion in order to get best resolution without overloading the converter? 
 
b) If the A/D converter can take 1000 samples per second, what are the characteristics of the filter we should use with the above amplifier to avoid aliasing? (What kind of filter? Concer frequency around what value?)

problem 3: You are trying to observe a 500 Hz signal of amplitude 2 mV in the presence of an interfering 4.0 kHz signal also of amplitude 2mV. Use a MATLAB .m script to plot the waveform you will observe from say 0 to 4 msec. You can assume that both the signal and the interference are at zero instantaneous voltage at time 0. 
 
problem 4: You now pass the signal+interference through a 2-section 1.0 kHz low pass filter with a roll off of 40 dB/decade (similar to that of problem set 5). Make a plot of the waveform of the filter output over the time period 0 to 4 msec. (Consider the effect of the filter on both the amplitude and phase of the signals.)

Attention for 2-section 1.0 kHz low pass filter:|Vout/Vin|=1/(1+ω2R2C2), f(-3dB) = 1000Hz, ω(-3dB) = 6280(1/s), at 3dB frequency, |Vout/Vin|2= 1/2 (-3dB). You should find your RC first and find out the gain for the two components of signals respectively. 

Physics, Academics

  • Category:- Physics
  • Reference No.:- M91968

Have any Question? 


Related Questions in Physics

A ball is dropped from the top of the empire state building

A ball is dropped from the top of the Empire State building to the ground below. The height, y, of the ball above the ground (in feet) is given as a function of time, t, (in seconds) by y = 1250 - 16t 2. (a) Find the vel ...

Let w be the amount of water in gallons in a bathtub at

Let W be the amount of water, in gallons, in a bathtub at time t, in minutes. (a) What are the meaning and units of dW/dt? (b) Suppose the bathtub is full of water at time t 0 , so that W(t 0 ) > 0. Subsequently, at time ...

In no less than 100 words- are leaders born or made is

In no less than 100 words- Are leaders born or made? Is leadership more a matter of personal characteristics or a collection of specific behaviors anyone can learn?

Jorge has learned that he has a mental illness since then

Jorge has learned that he has a mental illness. Since then, he has begun to act according to the illness, in ways that he thinks others expect someone with a mental illness to act. Which theory of health and illness best ...

A transatlantic cable contains n 20 indistinguishable

A transatlantic cable contains N = 20 indistinguishable electrical wires. You have the job of figuring out which wire is which, that is, to create a consistent labelling of the wires at each end. Your only tools are the ...

In an electrical outlet the voltage v in volts is given as

In an electrical outlet, the voltage, V , in volts, is given as a function of time, t, in seconds, by the formula (a) What does V0 represent in terms of voltage? (b) What is the period of this function? (c) How many osci ...

This and the next problem summarize the equation and

This and the next problem summarize the equation and methodology used by physicists to calculate N DD , N AA , E D  and g D  in a semiconductor from a set of N versus T data from very low temperatures to above T i . Usin ...

Unreasonable resultsthe manufacturer of a smoke alarm

Unreasonable Results The manufacturer of a smoke alarm decides that the smallest current of α radiation he can detect is 1.00 µA . (a) Find the activity in curies of an α emitter that produces a 1.00 µA current of α part ...

Often aerobatic fermentations give off co2nbspgas because

Often aerobatic fermentations give off CO 2  gas because the respiring cells produce CO 2  as glucose nutrient is converted to chemical energy. The conditions used to set k La  for O 2  transfer in the fermenter also est ...

In no less than 100 words what are some of the differences

In no less than 100 words What are some of the differences between "attitudes" and "beliefs," as described in Ch. 4 of the text?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro