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

Fatty deposits in blood vessels pose a health risk chemical

Fatty deposits in blood vessels pose a health risk. Chemical agents added to the blood can increase the solubility of the fatty deposits in blood, thereby providing a means to dissolve the fatty deposits in situ. To expl ...

A 85 cubic meter tank of nitrogen is at 60ccelsius and

A 85 cubic meter tank of nitrogen is at 60C(Celsius) and 500kPa pressure. (1) calculate the rms velocity for the nitrogen molecules (2) calculate the average translational and rotational kinetic energy of the molecules. ...

If a circuit requires a capacitor to give good coupling at

If a circuit requires a capacitor to give good coupling at 200Hz and the resistance the capacitor is connected to is 3Kohms, what value capacitor is needed?

At any time t a population pt is growing at a rate

At any time, t, a population, P(t), is growing at a rate proportional to the population at that moment. (a) Using derivatives, write an equation representing the growth of the population. Let k be the constant of proport ...

A nanoparticle containing 6 atoms can be modeled

A nanoparticle containing 6 atoms can be modeled approximately as an Einstein solid of 18 independent oscillators. The evenly spaced energy levels of each oscillator are 4e-21 J apart. Use k = 1.4e-23 J/K. (a) When the n ...

Electric force is a vector three charged objects are

Electric Force is a vector. Three charged objects are located at the 'corners' of an equilateral triangle with sides 1.0 m long. Two of the objects carry a charge of 5.0 µC each. The third object carries a charge of -5.0 ...

In a conventional thyristor 12-pulse converter estimate the

In a conventional thyristor 12-pulse converter, estimate the internal drop of voltage, regulation, and PF for the following data set. Source Load V = 220 V   F = 60 Hz α = 20° L = 0.1 mH R load = 20 Ω R = 0.1 Ω L load = ...

An 1800 kg car stopped at a traffic light is struck from

An 1800 kg car stopped at a traffic light is struck from the real by a 900kg car. The two cars become entangled, moving along the same paths that of the originally moving car. If the smallest car were moving at 20m/s bef ...

The value of specific heat for copper is390jkgsdotcfor

The value of specific heat for copper is390J/kg⋅C°,for aluminun is900J/kg⋅C°,and for water is4186J/kg⋅C° What will be the equilibrium temperature when a 215 g block of copper at 245 °C is placed in a 155 g aluminum calor ...

What is the relationship between media depictions of

What is the relationship between media depictions of violence and the occurrence of violent crime in U.S. society?

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen