Sensors and Instrumentations - Chapter 1 Introduction

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16 Questions

A sensing unit can consist of additional components such as filters, amplifiers, modulators, and other signal conditioners. True or False?

True

The actuating unit consists of an actuator and optionally a power supply and a coupling mechanism. True or False?

True

Transducers are devices used to transform one kind of energy to another. True or False?

True

An actuator is a transducer that converts a measurable quantity to an electrical voltage or an electrical current. True or False?

False

An instrument refers to an actuator together with some of its associated electronics. True or False?

False

A sensor is a converter of generally electrical effects into electrical signals. True or False?

False

Passive sensors require external power for their operation.

False

Analog sensors produce binary output signals.

False

Digital sensors incorporate active electronic components such as amplifiers and ICs.

True

Eyes detect heat energy as a form of input.

False

Active sensors directly generate an electric signal in response to an external stimulus.

False

A thermistor changes its resistance when cooled.

True

Passive sensors incorporate active electronic components like amplifiers and ICs.

False

Human skin detects sound energy as a form of input.

False

Infrared sensors are examples of mechanical quantity sensors.

False

Sensors that detect physical quantities are classified as digital sensors.

False

Test your understanding of the components of closed loop control systems, sensors, actuators, and mechatronics systems as well as the functions of sensing units and controllers in this quiz.

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