The values output by analog sensors cannot be handled directly by a computer. what value is it? Group of answer choices

Question 1

The values output by analog sensors cannot be handled directly by a computer. what value is it?

Group of answer choices

 

Integrated value

 

discrete value

 

continuous value

 

Raw data

 

Question 2

The value output by the digital sensor can be easily handled by a computer. what value is it?

Group of answer choices

 

continuous value

 

Raw data

 

discrete value

 

Integrated value

 

Question 3

When converting analog values to digital values, what is the process of extracting the values to be converted at regular intervals?

 

Group of answer choices

 

sampling

 

quantization

 

Measurement processing

 

sampler

 

Question 4

When converting analog values to digital values, what is the process of converting the extracted analog values into discrete values?

 

Group of answer choices

 

discretization

 

quantization

 

conversion process

 

sampling

 

Question 5

If f is the maximum frequency component contained in the original analog signal, what is the minimum value of the previous sampling frequency?

Group of answer choices

 

2f

 

f

 

8f

 

4f

 

Question 6

What happens to the data output by a digital sensor as the sampling frequency increases? Choose all that apply.

Group of answer choices

 

data volume increases

 

less noise

 

Increased accuracy

 

finer time granularity

 

Question 7

Choose the correct combination of A and B that applies to the following sentences.

 

“The resolution of a digital sensor is determined by [A] and [B] of the sensor. If [ A] is the same, the larger [B] is, the more memory the digital ruler will have, enabling finer measurements and higher resolution. If [B] is the same, then a larger [A] will apply the same digital ruler to a larger width, thus reducing the resolution. 』

 

Group of answer choices

 

A: Sampling frequency B: Number of quantization bits

 

A: Measurement range B: Sampling frequency

 

A: Number of quantization bits B: Measurement range

 

A: Measurement range B: Number of quantization bits

 

Question 8

Select the reason why quantization errors occur in digital sensors.

Group of answer choices

 

Because the number of quantization bits is small

 

Because the scale of the digital ruler has a larger width

 

Because we have to approximate continuous analog values with discrete digital values

 

because the sampling frequency is too low

 

Question 9

How can I reduce quantization error in digital sensors?

Group of answer choices

 

narrow the measurement range

 

Decrease sampling frequency

 

increase the sampling frequency

 

Increase quantization bit depth

 

Question 10

Figure 1 is an analog curve of acceleration. Convert this curve to digital under the following conditions.

 

Quantization bit rate is 3 bits

Sampling period is 16Hz

Measurement range is ±2g

The length of this analog curve is 2 seconds

The grid in Figure 1 is drawn for reference. Mark the sample with a ● on the curve, draw a line to indicate the transition of the digital values, and label the X and Y axes appropriately.