Question #1:00 points) A sinu so dal signal measured than oscilloscope is observ

Question

Question #1:00 points) A sinu so dal signal measured than oscilloscope is observed ,o have a lo v Ppchiacuritie What would the measured voltage be with a multimeter? Question #2:00 points) Quantization Error refers to what type of error on a measured signal? How can quantization error be elimi Question #3:00 points) t sample rate is needed to identify the frequency of a 500 Hz signal? What sample rate is needed to identify the amplitude of a 500 Hz signal? Qilestion#4 (rnultipart): There is choice of two data acquisition boards to be used to measure the signal identified below. One board is a low resolution 4 bit ADC with voltage settings of +- 2.5 Volt and +i-5 Volt max; this board costs $125. The second board is a higher resolution 6 bit ADC and a fixed vollage setting of +/. 10 Volt max; this board cost $350. Only the 6 bit board has AC coupling available. The signal to be measured is a sinusoidally varying signal of 1.2 Volt rms at 10 Hiz along with a 0.25 Volt DC bias due to a signal conditioner. #4a: What is the resolution (incremental step) o(the 6 bit board? Must show calculation (4 points) #4b: what ARE the different resolutions possible for the 4 bit board? Must show calculation (6 points) #4c: which board is the smart one to purchase and wHY? (15 points) Explain and substantiate your answer clearls and concisely Question #5: Assume a 5 Volt DC signal plus a l Volt peak sine at 500 Hz as shown on plot Question 5a: (5 points) Plot the resulting signal if the signal is DC coupled Question 5b: (10 points)- Plot the signal measured using a 1000 Hz high pass filter Question 5c: (10 points) - Plot the resulting signal if the signal is AC coupled Question #6 : (20 points) Answer TRUE or FALSE (2 point each) _ do not debate h:quesion-just answer Tor, Quantization errors can not be eliminated when using a higher bit board TF Regression analysis can only be performed for a straight line trend. TF The digital multimeter can only measure AC signals. T F Differentiation is only affected by the time resolution of the measured signal. TF The frequency of a signal can be measured using an oscilloscope. TF Integration generally tends to amplify noise seen in any measurement T F The RMS cannot be used for a randomly varying signal. TF A 2KHz low pass filter will remove all signals above 2.5KHz T Anti-aliasing filters are low pass filters that eliminate quantization error. TThe resolution of a digital acqusition board i etermined by the number of tishe o be measured Midherm Exam 1 - Spring 2018 ME Lab 1-MECH 3020

Explanation / Answer

1) 5V

2) The difference between sampled signal to quantized signal is called quantization error.It can reduce by increasing quantisation level or number of bit.

3) for frequency fs = 2*500 = 1000 hz so sample rate = 1 / fs = 1ms

for amplititude sample rate is less than = 1 / f = 1 / 500 = 2ms

pls post other questions seperatly

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