EE253: Electronic Instrumentation & Measurement Quiz

What is the primary function of a signal conditioning circuit in instrumentation?

• To display the signal output

• To amplify the signal only

• To modify the signal for better usability

• To convert analog signals to digital

Which of the following is NOT a function of signal conditioning?

• Data storage

• Filtering

• Amplification

• Isolation

What is the purpose of a low pass filter in signal conditioning?

• To isolate the signal from noise

• To amplify all frequencies equally

• To pass low frequencies and attenuate high frequencies

• To pass high frequencies and attenuate low frequencies

In the context of operational amplifiers, what does the term 'gain' refer to?

• The noise level of the amplifier

• The frequency response of the amplifier

• The input impedance of the amplifier

• The ratio of output voltage to input voltage

What is the main advantage of using a differential amplifier?

• It is simpler to design

• It requires less power

• It provides high noise immunity

• It amplifies all input signals equally

Which type of ADC is known for its speed and uses a series of comparators?

• Successive approximation ADC

• Flash ADC

• Ramp compare ADC

• Voltage-to-frequency ADC

What is the primary function of a microcontroller in a data acquisition system?

• To display data

• To process and control operations

• To convert analog signals to digital

• To amplify signals

In a digital-to-analog converter (DAC), what does the term 'resolution' refer to?

• The maximum output voltage

• The input voltage range

• The smallest change in output voltage that can be represented

• The speed of conversion

What is the purpose of a sample and hold circuit in data acquisition?

• To amplify the signal

• To filter out noise

• To maintain a constant voltage level during conversion

• To convert digital signals to analog

Which of the following best describes the function of an operational amplifier?

• It performs mathematical operations on input signals

• It only amplifies AC signals

• It is used solely for filtering signals

• It converts digital signals to analog