30 Questions
What is the primary function of a transducer?
To receive a signal in one form of energy and convert it to another form
Which of the following is an example of an analog transducer?
A strain gauge
What distinguishes a primary transducer from a secondary transducer?
Primary transducers directly convert a physical phenomenon into an electrical signal
Which of the following is an example of a digital transducer?
An optical encoder
Which of the following energy domains is NOT mentioned in the text as a typical domain for transducers?
Nuclear
What does 'span' refer to in the context of sensors?
The difference between the maximum and minimum input values
What is the purpose of a speaker?
To convert electrical signals into sound
How is 'resolution' of a sensor defined?
As the smallest change the sensor can differentiate
Which characteristic of sensors is described by 'repeatability'?
The ability to produce the same output with consistent inputs
What does 'linearity' reflect in a sensor?
The maximum deviation from an ideal curve across the full range
In terms of sensors, how is 'error' defined?
The difference between actual measured value and true value
What is 'accuracy' related to in the context of sensors?
The closeness between actual measured value and true value
What is the function of a secondary transducer?
To convert the input signal into an electrical form
Which of the following is a characteristic of active transducers?
They generate an output without an auxiliary source
What is the primary function of an "input" transducer or actuator?
To impose an action on the system, such as opening a valve
Which of the following best describes a sensor?
A transducer that monitors a system and responds to input
What is the output of a sensor typically proportional to?
The physical input being measured
Which of the following statements about passive transducers is true?
They require an external source of power for their operation
What is the primary function of sensors?
To detect and measure various forms of energy or stimuli
How do human beings perceive sensory information?
Through specialized organs like the eyes, ears, tongue, nose, and skin
What is the primary function of an actuator?
To convert energy into motion or physical action
Which of the following is an example of an actuator?
An electric motor
What is the primary difference between sensors and actuators?
Sensors detect energy, while actuators convert energy into motion
Which of the following statements is true about sensors?
Sensors are present in various applications, including our bodies and everyday devices
What is the formula for calculating accuracy?
Accuracy = (Measured value - True value) / True value
How is precision defined?
Precision is defined as the closeness among a set of values.
What is the relationship between precision and accuracy?
Precision is a necessary but not sufficient condition for accuracy.
What does the response time of a sensor describe?
The time it takes for the sensor to respond completely to a change in input.
What is the most commonly used position sensor?
Potentiometer
How does the output signal from a potentiometer change with position?
The output signal is proportional to the position of the wiper.
Explore Lecture 5 on Measurement Devices and Transducers in the course 'Measurements and Measuring Systems' with instructor Dr. Faten Elshewimy. Learn about transducers, devices that convert energy from one form to another, and their applications across various energy domains.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
