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# Sensors and Transducers Quiz

Created by
@ProdigiousScholarship

### Q: What is the purpose of a sensor?

To convert one type of energy into another

### Q: What is the difference between a sensor and a transducer?

A sensor converts electrical energy into another form of energy, while a transducer converts one type of energy into another

### Q: What are the two types of sensors based on the need for external power?

Passive sensors and active sensors

### Q: What are the two types of sensors based on the selected reference?

<p>Absolute sensors and relative sensors</p> Signup and view all the answers

### Q: What is the transfer function of a sensor?

<p>A mathematical expression that establishes the dependence between the electrical signal produced by the sensor and the stimulus applied to it</p> Signup and view all the answers

## Study Notes

### Sensor Basics

• The purpose of a sensor is to detect and measure physical parameters such as temperature, pressure, or light, and convert them into electrical signals that can be read and interpreted by an observer or an instrument.

### Sensor vs Transducer

• A sensor and a transducer are often used interchangeably, but a sensor detects a physical parameter, whereas a transducer converts the detected signal into an electrical signal.

### Based on Power

• Active Sensors: Require an external power source to operate.
• Passive Sensors: Do not require an external power source and generate their own electrical output signal.

### Based on Reference

• Absolute Sensors: Measure physical parameters relative to a fixed reference point.
• Relative Sensors: Measure physical parameters relative to a changing reference point.

### Transfer Function

• The transfer function of a sensor is a mathematical model that describes the relationship between the input signal (physical parameter) and the output signal (electrical signal).

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## Description

Test your understanding of sensors and transducers with this quiz! Answer questions about the differences between these devices, the types of sensors based on external needs, and more. Challenge your knowledge and see how well you grasp these concepts.

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