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QUIZ

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1.     How is the sensitivity threshold defined?

The of the input value above the zero value, which gives a really distinct indication of the output.

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2.     What is the definition of a measuring instrument resolution?

The smallest change in the that results in a small but quantifiable change in the .

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3.     What determines the measuring range?

From the area of ​​permissible changes of the value, where the permissible will not be exceeded.

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4.     What is the measurement process?

Measurement is the process of comparing a known quantity with an accepted quantity, which results in a quantitative assessment of its true value in a form suitable for the user's perception of the measurement .

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5.     What are the main parameters and characteristics of measuring instruments?

Measuring , measuring , measuring , level of , noise resistance, of operation, range, supply

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6.     What is the "measuring range" parameter of the meter?

Limit ​​in which the device or the signal with its set parameters.

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7.     What are the main parameters of the measuring instrument, determining the ranges of measurement?

Attenuator transmission , amplifier , noise and conversion .

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8.  What is the "measurement accuracy" parameter of the meter?

Assessment of the reliability of the , which is guaranteed within the permissible .

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9.  What are the main parameters of the measuring instrument that determine the accuracy of the measurement?

Bit , and of the parameters of the ADC, attenuator and the amplifier , noise .

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10.  What is the "measuring time" parameter of the meter?

The from the receipt of the signal (information) at the of the device to the of the device.

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11.  What are the main parameters of the meter that determine the measurement time?

Speed of , analog and multiplexers and process are decisive.

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12.  Oscilloscopes usually:

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a. Display amplitudes such as voltages on the vertical axis of the display.

b. Provide the most-commonly used controls on the front panel.

c. Provide the most-commonly used controls on the front panel.

d. All the above.

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13. A typical digital oscilloscope:

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a. Conditions analog input signals with amplification.

b. Samples the input signals at a high sample rate and converts them to digital format.

c. Stores the digitized waveform data in memory and displays the waveform on the display.

d. All the above.

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14. A digital oscilloscope acquires a waveform by conditioning the input signal in the analog vertical amplifier, sampling the analog input signal, converting the samples to a digital representation with an analog-to-digital converter, storing the sampled digital data in its memory, and then reconstructing the waveform for viewing on the display.

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a. True.

b. False.

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15.  The three primary sets of oscilloscope controls are:

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a. Vertical, Measurements and Display

b. Horizontal, Autoset and Measurements

c. Vertical, Horizontal and Trigger

d. Trigger, Measurements and Cursors

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18.  Write the main characteristics of digital oscilloscopes with their definition.

Bandwidth is the ;

Rise time is the ;

For digital oscilloscopes input signals must have sample rate

.

Digital oscilloscopes capture a specific number of samples or data points, known as

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19. Oscilloscopes can make measurements with:

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a. Automated measurements using firmware-based algorithms to process stored waveform data.

b. Cursor measurements.

c. Manual measurements based on the graticule of the display.

d. All the above.

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20.  What do spectrum analyzers measure?

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a.     Frequency Response, Noise and Distortion characteristics of all kinds of radio-frequency circuitry.

b.     Occupied Bandwidth and Interference Sources in Telecommunications.

c.     Basic Pre-Compliance Testing for EMC Testing.

d.     All the above. 

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21.  If a Lisaju figure is observed on the oscilloscope screen, which frequency measurement method is used?

Answers

a. Stroboscopic method.

b. Counting method.

c. Comparison method.

d. All the above. 

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22. Main characteristics of spectrum analyzers are:

Resolution , frequency , AC/DC and  Frequency

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Question True-False

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23. Thermoelectric ammeters allow short-term overloads

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25. Photo ammeters have wide dynamic range that makes them suitable for several of applications.

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26. Analog electronic voltmeters have high sensitivity with a significant range of measurements and ability to withstand overload.